Best voltage monitoring relays - Buying Guide
Last Updated: 05/04/2024
Share on
As an Amazon Associate we earn a fee from qualifying purchases when you follow a link to Amazon from this page. We rank the products, but the links to Amazon are promotional.
#1
OONO DPST 1NO 1NC 8Amp Power Relay Module, AC/DC 12V Control Voltage
Asin: B089Q6KLPQ | Model: F-1022 Series | PartNumber: F-1022 Series | Ean: 6954525591007
Compact Plastic Case And Wires Connects For Easy Mount. Led Indication For Relay Action..
This Is A Simple And Practical Passive Relay Module, Which Is Very Convenient To Use. It Can Support Both Normally Open And Normally Close. Two Screw Mounting Holes Are Convenient For You To Fix It On The Wall Or Wooden Board. Of Course, You Can Also Choose Not To Lock The Screw..
Output Switch Dpst 1No 1Nc(Double Pole Single Throw, 1X Normally Open And 1X Normally Close ), Rated Current 8A/250Vac Or 8A/30Vdc (One Switch)..
Features
- Input control signal: Voltage AC or DC 12V, Current 33mA.
- Output switch DPST 1NO 1NC(Double Pole Single Throw, 1x Normally Open and 1x Normally Close ), rated current 8A/250VAC or 8A/30VDC (one switch).
- Compact plastic case and wires connects for easy mount. LED indication for relay action.
- This is a simple and practical passive relay module, which is very convenient to use. It can support both Normally Open and Normally Close. Two screw mounting holes are convenient for you to fix it on the wall or wooden board. Of course, you can also choose not to lock the screw.
- See more on Amazon...
Brand: OONO | Manufacturer: CZH-LABS
See On Amazon #2
HUAREW 1-Channel 12V Relay Module with optocoupler Isolation Supports high and Low Level triggering (Pack of 10)
Asin: B0B4W7VDL7 | Model: HR-RELAY-12V | PartNumber: HR-RELAY-12V | Ean: 0762917148854 | UPC: 762917148854
Insulation Design: The Relay Board Is Insulated With A Patch Optocoupler, And The Insulation Circuit Prevents The Relay Switching Current From Damaging The E/A Port..
Wide Range Of Applications: Suitable For All Kinds Of Single-Chip Microcomputers, And Can Be Widely Used In Various Power Control Occasions..
High Quality: The Module Adopts Normally Open Interface, High Quality Relay, The Maximum Load Of The Relay Module: Ac 250V/10A, Dc 30V/10A..
With Indicator Light: With Power Supply And Working Dual Indicator Lights. Power Indicator (Green), Relay Status Indicator (Red).
Features
- Convenience: The relay board is designed with 1 interface, humanized design, input and output terminals, and convenient wiring.
- With indicator light: with power supply and working dual indicator lights. Power indicator (green), relay status indicator (red)
- Insulation design: The relay board is insulated with a patch optocoupler, and the insulation circuit prevents the relay switching current from damaging the E/A port.
- High quality: The module adopts normally open interface, high quality relay, the maximum load of the relay module: AC 250V/10A, DC 30V/10A.
- Wide range of applications: suitable for all kinds of single-chip microcomputers, and can be widely used in various power control occasions.
- See more on Amazon...
Brand: HUAREW | Manufacturer: HUAREW
See On Amazon #3
Alinan 4pcs 4CH Optocoupler PC817 4 Channel Isolation Board Voltage Converter Adapter Module 3.6-30V Driver Photoelectric Isolated Module
Asin: B09ZH6D7CQ | Model: Alinan | PartNumber: Alinan | Ean: 0701715514935 | UPC: 701715514935
★Photoelectric Isolation Has Strong Anti-Interference Ability. Can Drive Big Behindpower Triodes, Mos Tubes, Etc., Where High Voltage Driving Is Required, Can Also Directly Drive Low Power 24V Relays..
★Through The Jumper Cap Can Achieve Whether The Output Is High Potential Output Or Low Output.The 4Th And 817 On The Board Are Independent, Which Can Realize Simultaneous Control Of Different Voltages, Etc..
★If It Is A Pulse Signal, Please Note That The Limit Of 817 Is Below 4Khz. If The Control Signal Is Greater Than 4Khz, Please Do Not Use This Module, It Will Not Work Properly..
★Can Realize 3.3V Or 5V To Control The Interface Of 3.6-30V Voltage . After The Control Terminal Is Turned On, The Controlled Terminal Will Also Be Turned On..
Features
- Driving Port Signal Voltage: 3.6-24V; Output Port Voltage Port: 3.6-30V
- Can realize 3.3V or 5V to control the interface of 3.6-30V voltage . After the control terminal is turned on, the controlled terminal will also be turned on.
- Photoelectric isolation has strong anti-interference ability. Can drive big behindPower triodes, MOS tubes, etc., where high voltage driving is required, can also directly drive low power 24V relays.
- If it is a pulse signal, please note that the limit of 817 is below 4KHZ. If the control signal is greater than 4KHZ, please do not use this module, it will not work properly.
- Through the jumper cap can achieve whether the output is high potential output or low output.The 4th and 817 on the board are independent, which can realize simultaneous control of different voltages, etc.
- See more on Amazon...
Brand: Alinan | Manufacturer: Alinan
See On Amazon #4
DPST 1NO 1NC 8Amp Latching Relay Module (DC 12V)
Asin: B08R7G11XC | Model: F-1030 Series | PartNumber: F-1030 Series | Ean: 6954525591564
Support Three Input Control Modes: 1, Use Set And Reset Buttons On The Module(No External Control Switch Or Signal Is Required). 2, External Set And Reset Button(Support Momentary-Action Switch, But Can't Support Self-Holding Switch). 3, For Sink/Npn Output Controller..
Operating Voltage Version: Dc 5V, 12V And 24V Three Versions Selectable. Output Switch Dpst 1No 1Nc(Double Pole Single Throw, 1X Normally Open And 1X Normally Close ), Rated Current 8A/250Vac Or 8A/30Vdc (For One Switch)..
This Is A Simple And Practical Latching Relay Module, Which Is Very Convenient To Use. It Can Support Both Normally Open And Normally Close. Two Screw Mounting Holes Are Convenient For You To Fix It On The Wall Or Wooden Board. Of Course, You Can Also Choose Not To Lock The Screw. Compact Plastic Case And Wires Connects For Easy Mount..
Features
- If you are looking for a latching relay with power-off memory, then this module will be very suitable for you. Even if the power supply is turned off, the status of the output switch will not be affected in any way, it will remain in the state before the power was turned off.
- This is a simple and practical latching relay module, which is very convenient to use. It can support both Normally Open and Normally Close. Two screw mounting holes are convenient for you to fix it on the wall or wooden board. Of course, you can also choose not to lock the screw. Compact plastic case and wires connects for easy mount.
- Support three input control modes: 1, Use Set and Reset buttons on the module(No external control switch or signal is required). 2, External Set and Reset button(Support Momentary-action switch, but can't support Self-holding switch). 3, for Sink/NPN output controller.
- Operating voltage version: DC 5V, 12V and 24V three versions selectable. Output switch DPST 1NO 1NC(Double Pole Single Throw, 1x Normally Open and 1x Normally Close ), rated current 8A/250VAC or 8A/30VDC (for one switch).
- See more on Amazon...
Brand: OONO | Manufacturer: CZH-LABS
See On Amazon #5
AEDIKO 4pcs DC 5V Relay Module 2 Channel Relay Board with Optocoupler Support High or Low Level Trigger
Asin: B099MC4TJD | Model: AE06233 | PartNumber: AE06233 | Ean: 0701715485006 | UPC: 701715485006
5V Relay Module Is 2 Channel Isolated, Each Relay Can Individually Switch On/Off By An Opto-Isolated Digital Input.
2 Channel Module Equipped With Screwed Terminal Plate And Fixed Bolt Holes,Standard Interface Can Connect With Microcontrollers And Be Controlled By A Wide Range Of Microcontrollers.
Relay Module Designed With Fault-Tolerant , Even If The Control Line Breaks, The Relay Will Not Move; With Optical Coupling Isolation,Triggering More Reliable And Stable.
2 Channel Relay Module 5V Comes With High-Current Relay,Trigger Current : 5Ma.
Features
- 2 Channel Relay Module Voltage : 5V; Normally Open Interfaces Maximum Load : AC 250V/10A, DC 30V/10A
- 2 Channel Relay Module 5V Comes with High-Current Relay,Trigger Current : 5mA
- 5V Relay Module is 2 Channel Isolated, Each Relay Can Individually Switch On/Off by An Opto-Isolated Digital Input
- Relay Module Designed With Fault-Tolerant , Even If The Control Line Breaks, The Relay Will Not Move; With Optical Coupling Isolation,Triggering More Reliable and Stable
- 2 Channel Module Equipped With Screwed Terminal Plate and Fixed Bolt Holes,Standard Interface Can Connect With Microcontrollers and be Controlled by a Wide Range of Microcontrollers
- See more on Amazon...
Brand: AEDIKO | Manufacturer: AEDIKO
Dimensions: 0.70 x 2.00 x 1.00 inches
See On Amazon #6
Symcom 460 Three Phase Voltage Monitor Adj.VUB,TD,RD/DIN rail
Asin: B00GJ3Y756 | Model: MS460 | PartNumber: MS460 | Ean: 0006075000006 | UPC: 006075000006
Diagnostic Leds Indicate Trip Status And Provide Simple Troubleshooting..
Single-Phase Conditions Are Detected Regardless Of Regenerated Voltages..
Microcontroller-Based Circuitry Provides Better Accuracy And Higher Reliability Than Analog Designs..
Four Adjustment Pots Provide Versatility For A Variety Of Applications..
Features
- The 460's universal range from 190-480VAC, 50/60 Hz provides the versatility needed to handle global applications.
- Four adjustment pots provide versatility for a variety of applications.
- Diagnostic LEDs indicate trip status and provide simple troubleshooting.
- Microcontroller-based circuitry provides better accuracy and higher reliability than analog designs.
- Single-phase conditions are detected regardless of regenerated voltages.
- See more on Amazon...
Brand: Symcom | Manufacturer: Symcom / Littelfuse
Dimensions: 3.50 x 2.35 x 2.08 inches | Weight: 0.00 pounds
See On Amazon #7
DPST 1NO 1NC 8 Amp Power Relay Module (AC 110V/115V/120V)
Asin: B09T6YM2MF | Model: HD042-Series | PartNumber: HD042-Series | Ean: 6956601852903
Output Switch Dpst 1No 1Nc(Double Pole Single Throw, 1X Normally Open And 1X Normally Close ), Rated Current 8A/250Vac Or 8A/30Vdc (One Switch)..
Compact Abs Plastic Case And Wires Connect For Easy Mount. Two Screw Mounting Holes Are Convenient For You To Fix It On The Wall Or Wooden Board. Of Course, You Can Also Choose Not To Lock The Screw..
Led Indication For Relay Action..
Input Control Signal: Ac/Dc 5V, Ac/Dc 12V, Ac/Dc24v, Ac/Dc48v, Ac 115V, Ac 230V Selectable..
Features
- This is a simple and practical passive relay module, which is very convenient to use. It can support both Normally Open and Normally Close.
- Input control signal: AC/DC 5V, AC/DC 12V, AC/DC24V, AC/DC48V, AC 115V, AC 230V Selectable.
- Output switch DPST 1NO 1NC(Double Pole Single Throw, 1x Normally Open and 1x Normally Close ), rated current 8A/250VAC or 8A/30VDC (one switch).
- LED indication for relay action.
- Compact ABS plastic case and wires connect for easy mount. Two screw mounting holes are convenient for you to fix it on the wall or wooden board. Of course, you can also choose not to lock the screw.
- See more on Amazon...
Brand: HCDC | Manufacturer: Xiken Electronic Technology Co., Ltd.
See On Amazon #8
AEDIKO 6pcs 1 Channel Relay Module DC 3V/3.3V High Level Driver Optocoupler Module Isolated Drive Control Board
Asin: B09XTZSG53 | Model: AE19753 | PartNumber: AE19753 | Ean: 0701715525467 | UPC: 701715525467
High Level Trigger: The Relay Module Is Triggered By High Level Signal, Which Can Be Input From Microcontroller Io.
Wide Application: These 3V Relay Power Switch Module Works Well With Arm /Pic /Avr /Mcu/Cnc Machine/ Ps4 Etc..
Jumper Caps: By Removing The Jumper Caps On The Pins,You Can Select Whether The Relay And The Signal Share The Same Power Supply Or Not,But We Are Recommended To Share The Same Power Supply.
Optocoupler Isolator: 3V/3.3V Power Relay Module Supports Photocoupler Isolation Control.
Features
- 3V Relay Module: Working Voltage: DC 3-3.3V; Working Current: 65mA; Trigger Current: 3mA;Load: 10A 250VAC / 10A 30VDC;Load Current: 10A max
- Optocoupler Isolator: 3V/3.3V Power Relay Module Supports Photocoupler Isolation Control
- High Level Trigger: The Relay Module is Triggered by High Level Signal, Which Can Be Input From Microcontroller IO
- Jumper Caps: By Removing the Jumper Caps on the Pins,You can Select Whether the Relay and the Signal Share the Same Power Supply or Not,But We Are Recommended to Share the Same Power Supply
- Wide Application: These 3V Relay Power Switch Module Works Well With ARM /PIC /AVR /MCU/CNC Machine/ PS4 etc.
- See more on Amazon...
Brand: AEDIKO | Manufacturer: AEDIKO
See On Amazon #9
AEDIKO DC 12V Relay Module 8 Channel Relay Board with OPTO-Isolated High or Low Level Trigger
Asin: B099F55Q6M | Model: AE19532 | PartNumber: AE19532 | Ean: 0701715481473 | UPC: 701715481473
12V Relay Module Is 8 Channel Isolated, Each Relay Can Individually Switch On/Off By An Opto-Isolated Digital Input.
8 Channel Module Equipped With Screwed Terminal Plate And Fixed Bolt Holes,Standard Interface Can Connect With Microcontrollers And Be Controlled By A Wide Range Of Microcontrollers.
Relay Module Designed With Fault-Tolerant , Even If The Control Line Breaks, The Relay Will Not Move; With Optical Coupling Isolation,Triggering More Reliable And Stable.
8 Channel Relay Module 12V Comes With High-Current Relay,Trigger Current : 5Ma.
Features
- 8 Channel Relay Module Voltage : 12V; Normally Open Interfaces Maximum Load : AC 250V/10A, DC 30V/10A
- 8 Channel Relay Module 12V Comes with High-Current Relay,Trigger Current : 5mA
- 12V Relay Module is 8 Channel Isolated, Each Relay Can Individually Switch On/Off by An Opto-Isolated Digital Input
- Relay Module Designed With Fault-Tolerant , Even If The Control Line Breaks, The Relay Will Not Move; With Optical Coupling Isolation,Triggering More Reliable and Stable
- 8 Channel Module Equipped With Screwed Terminal Plate and Fixed Bolt Holes,Standard Interface Can Connect With Microcontrollers and be Controlled by a Wide Range of Microcontrollers
- See more on Amazon...
Brand: AEDIKO | Manufacturer: AEDIKO
Dimensions: 0.70 x 5.40 x 2.20 Inches
See On Amazon #10
ESP32 2 Channel 5V Relay Module 4M Byte Flash Large Capacity Programmable Relay Board for Secondary Development Learning
Asin: B0B8J9SNB5
Output Switching : This Relay Board Contains 2 Way 5V Relay With Output Switching , Suitable For Controlling Loads With Operating Voltage Of Ac250v Or Dc30v Or Less..
Applicable Scenario: This Dual Relay Module Is Suitable For Secondary Development Learning, Smart Home, Wireless Control, Etc. If You Have Related Needs Then This One Is Suitable For You..
Large Capacity: This Dual Relay Module Has A Large Enough Capacity Of 4M, You Can Use It With The Actual Situation..
Safe : The Dual Relay Board Is Equipped With Wifi And Ble Modules.
Features
- Mature and Stable Module: This module supports I/O port as well as UART program download port all pinout, programmable keys and reset keys, mature and stable.
- Safe : The dual relay board is equipped with WiFi and BLE modules
- Output Switching : This relay board contains 2 way 5V relay with output switching , suitable for controlling loads with operating voltage of AC250V or DC30V or less.
- Large Capacity: This dual relay module has a large enough capacity of 4M, you can use it with the actual situation.
- Applicable Scenario: This dual relay module is suitable for secondary development learning, smart home, wireless control, etc. If you have related needs then this one is suitable for you.
- See more on Amazon...
Brand: Walfront | Manufacturer: Walfront
See On Amazon #11
JESSINIE 5Pcs 1 Channel DC 3V/3.3V Power Relay Module 3V Relay Switch Module with Optocoupler Relay Module Isolated Drive Control Board 10A 250VAC 10A 30VDC Control Development Board
Asin: B0BG2F7349
Dual Power Supply Selection Design Has Strong Anti-Interference Ability And High Reliability Of Photoelectric Isolation Protection.
The External Connection Adopts Rotary Crimping Terminal To Make The Connection Firmer, With Fixed Mounting Holes For Easy Installation.
Onboard 3V,10A/250Vac; 10A/30V Dc Relay, Which Can Be Continuously Closed For 100,000 Times, With Diode Laxative Protection, Short Response Time.
The Signal Input Port Can Be Connected To The Io Port Of The Single Chip Microcomputer, And The High-Level Signal Is Driven.
Features
- Indicator with output signal
- The signal input port can be connected to the IO port of the single chip microcomputer, and the high-level signal is driven
- Dual power supply selection design has strong anti-interference ability and high reliability of photoelectric isolation protection
- Onboard 3V,10A/250VAC; 10A/30V DC relay, which can be continuously closed for 100,000 times, with diode laxative protection, short response time
- The external connection adopts rotary crimping terminal to make the connection firmer, With fixed mounting holes for easy installation
- See more on Amazon...
Brand: JESSINIE | Manufacturer: JESSINIE
See On Amazon #12
6-24V Flip-Flop Latch Relay Module Low Pulse Trigger Board Bistable Self-Locking Switch
Asin: B08FLH3QS3
[Self-Locking Design]: This Is A Bistable (Self-Locking) Relay Module That Triggers Once The Relay Pulls (And Holds); Trigger Again, Relay Release (And Hold).
[Easy To Use]: By Default, The Relay Is Release, Press The Trigger Button, The Relay Pull, Press Again, The Relay Release, The Third Press, The Relay Pull, And So On.
[Typical Applications]: This Relay Module Is Used For Automotive Electronics, Industrial Equipment, Engine, Led, Smart Home, Emergency Lighting, Mcu Development Board, Toy Car.
[Better Use]: Low Pulse Trigger Board Uses High Quality Electronic Components, Precision Technology, To Ensure Durability.
Features
- [Premium Material]: This latching relay module adopts of high quality electronic components, and precision process, ensure for the durability
- [Better Use]: Low pulse trigger board uses high quality electronic components, precision technology, to ensure durability
- [Self-locking Design]: This is a bistable (self-locking) relay module that triggers once the relay pulls (and holds); Trigger again, relay release (and hold)
- [Typical Applications]: This relay module is used for Automotive electronics, Industrial equipment, engine, LED, Smart home, Emergency lighting, MCU development board, Toy car
- [Easy to Use]: By default, the relay is release, press the trigger button, the relay pull, press again, the relay release, the third press, the relay pull, and so on
- See more on Amazon...
Brand: Yosoo Health Gear | Manufacturer: Yosoo Health Gear
Dimensions: 0.71 x 1.85 x 0.63 inches
See On Amazon #13
Electronics-Salon DIN Rail Mount 8 SPDT Power Relay Interface Module. (Operating Voltage: DC 5V)
Asin: B00M1MC3ZU | Ean: 6921407476158
Din Rail Mount Carrier: High Quality Taiwan Dinkle Fireproof Nylon Material Din Rail Mount Carrier (Not China Low Quality Carrier), Can Support Width 35Mm / 32Mm / 15Mm Rail. Fr-4 Fiber Glass Dual Layers Pcb..
Datasheet: Https://Images-Na.Ssl-Images-Amazon.Com/Images/I/91Ahtk3pt3l.Pdf.
High Quality Terminal Block: Pitch 5.0Mm/0.197", Wire Range 28Awg ~ 12Awg / 2.5Mm Square, Strip Length 7Mm. Screws - M2.5,Steel,Cr3+ Zn Plated. Pin Header And Cage - Brass..
Js1-5V-F Power Relays. Led Indicator For Each Relay Channel. Darlington Transistors Circuit Driving Relay, Improve The Reliability Of Action..
Features
- DIN Rail mount 8 Channel 10Amp SPDT Power Relay Module, DC 5V Version.
- JS1-5V-F Power Relays. LED indicator for each relay channel. Darlington transistors circuit driving relay, improve the reliability of action.
- DIN rail mount carrier: High quality Taiwan DINKLE fireproof nylon material DIN rail mount carrier (not China low quality carrier), can support width 35mm / 32mm / 15mm rail. FR-4 fiber glass dual layers PCB.
- High quality terminal block: Pitch 5.0mm/0.197, Wire range 28AWG ~ 12AWG / 2.5mm square, Strip length 7mm. Screws - M2.5,steel,Cr3+ Zn plated. Pin header and Cage - Brass.
- Datasheet: https://images-na.ssl-images-amazon.com/images/I/91AHtk3PT3L.pdf
- See more on Amazon...
Brand: Electronics-Salon | Manufacturer: Electronics-Salon
See On Amazon #14
Onyehn 1 Channel DC 3V Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board for Arduino (Pack of 8)
Asin: B07PNB86R7 | Model: relay8 | PartNumber: relay8 | Ean: 8431246151102
On-Board Signal Output Indicator, Wire Terminal And Installing Holescompatible With 10A 250Vac And 10A 30Vdc Load.
Relay Module: Srd-Dc03v-Sl-C;Channel: 1 Channel;Working Voltage: Dc 3-3.3V;Compatible Load: 10A 250Vac / 10A 30Vdc;Single Socket Length: 7.5Mm.
Module Size: 70Mmx17mmx20mm / 2.76X0.70X0.79 Inch (L*W*H).
Fast Response Time Less Than 20Ms And Longlife Time Up To 100,000 Times Snap Action.
Features
- 1 channel 3V/3.3V power relay mdoule support photocoupler isolation control;Support dual power supply input ensure high anti-iinterference ability
- Fast response time less than 20ms and longlife time up to 100,000 times snap action
- On-board signal output indicator, wire terminal and installing holescompatible with 10A 250VAC and 10A 30VDC load
- Module Size: 70mmX17mmX20mm / 2.76X0.70X0.79 inch (L*W*H)
- Relay Module: SRD-DC03V-SL-C;Channel: 1 channel;Working Voltage: DC 3-3.3V;Compatible Load: 10A 250VAC / 10A 30VDC;Single Socket Length: 7.5mm
- See more on Amazon...
Brand: Onyehn | Manufacturer: Onyehn
See On Amazon #15
Diitao 10PCS DC 5V 1 Channel Relay Module Interface Board Shield Low Level Trigger Extension Board for SCM Household Appliance Control DIY 1 Road 5V (5V 1-Channel)
Asin: B0BB6QLMFW | Model: DT081803 | PartNumber: DT081803 | Ean: 0687117700421 | UPC: 687117700421
The Control Dc Or Ac Signal, You Can Control 220V Ac Load..
Blue Kf301 Terminals To The Control Line Is More Convenient..
There Is A Normally Open And One Normally Closed Contact..
With The Power Supply And Relay Instructions, Pull Off, Disconnect Does Not Shine..
Features
- The module complies with international safety standards, the control area and the load region isolation trench.
- With the power supply and relay instructions, pull off, disconnect does not shine.
- The control DC or AC signal, you can control 220V AC load.
- There is a normally open and one normally closed contact.
- Blue KF301 terminals to the control line is more convenient.
- See more on Amazon...
Brand: Diitao | Manufacturer: Diitao
See On Amazon #16
Phase Sequence Protection Relay,JVR800-2 Under Over Voltage Protector 3 Phase Voltage Monitoring Sequence Protection Relay
Asin: B0957SQ2TT | Ean: 8114735600830
No External Power Requires..
The Lcd Can Show The Data For Easy Reading..
With Useful Functions: Electricity Delay, Output Test, Etc..
It Is Equipped With Protective Functions For Over-Voltage, Under-Voltage, Loss Of Phase, Phase Sequence And Unbalanced Three Phase Voltage..
Features
- Three phase voltage protector, chronograph and counter are integrated into one relay.
- It is equipped with protective functions for over-voltage, under-voltage, loss of phase, phase sequence and unbalanced three phase voltage.
- No external power requires.
- With useful functions: electricity delay, output test, etc.
- The LCD can show the data for easy reading.
- See more on Amazon...
Brand: Deror | Manufacturer: Deror
Dimensions: 2.13 x 3.15 x 1.69 inches | Weight: 0.29 pounds
See On Amazon #17
LCUS USB Relay Module,1/2/4/8 Channel LCUS USB Relay Module Electronic Converter LCUS-1 LCUS-2 LCUS-4 LCUS-8 Intelligent Control Relay Smart Switch (4 Way)
Asin: B0CBWMYFKZ | Model: 202307151131 | PartNumber: 202307151131
Package Included: 1X Usb Relay Module.
Note: 1. Due To The Light And Screen Difference, The Item's Color May Be Slightly Different From The Pictures. 2. Please Allow 1-3Cm Differences Due To Manual Measurement..
Lcus Usb Relay Module,1/2/4/8 Channel Lcus Usb Relay Module Electronic Converter Lcus-1 Lcus-2 Lcus-4 Lcus-8 Intelligent Control Relay Smart Switch.
Lcus-2: On-Board High Performance Microcontroller Chip. On-Board Ch340 Usb Control Chip. On-Board 2-Channel 5V,10A/250V Ac,10A/30Vdc Relays, Relay Life Is Long And Can Be Continuously Drawn 100,000 Times. On-Board Power Supply Led Indicator And Relay Status Led Indicator. The Module Has The Function Of Overcurrent Protection And Relay Continuous Current Protection. Board Size: 50*40Mm..
Features
- LCUS-1: On-board high-performance microcontroller chip. On-board CH340 USB control chip. On-board power LED indicator and relay status LED indicator. On-board 5V, 10A/250VAC, 10A/30VDC relays, relay life is long, can be continuously drawn 100,000 times. The module has the function of overcurrent protection and relay continuous current protection. Board size: 43.6*16.4mm.
- LCUS-2: On-board high performance microcontroller chip. On-board CH340 USB control chip. On-board 2-channel 5V,10A/250V AC,10A/30VDC relays, relay life is long and can be continuously drawn 100,000 times. On-board power supply LED indicator and relay status LED indicator. The module has the function of overcurrent protection and relay continuous current protection. Board size: 50*40mm.
- Package Included: 1x USB Relay Module
- LCUS USB Relay Module,1/2/4/8 Channel LCUS USB Relay Module Electronic Converter LCUS-1 LCUS-2 LCUS-4 LCUS-8 Intelligent Control Relay Smart Switch
- Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1-3cm differences due to manual measurement.
- See more on Amazon...
Brand: Aoyygg | Manufacturer: Aoyygg
Dimensions: 0.59 x 2.52 x 0.67 Inches
See On Amazon #18
Taidacent LM393 Voltage Comparator Relay Module 1 Channel / 1CH 5V/12V/24V Volt Comparison Board Stable Perfect (12V)
Asin: B08K4NTTK8 | Model: LM393 | PartNumber: LM393 | Ean: 0795749942826 | UPC: 795749942826
Input A Voltage Compared With The Reference Voltage (Reference Voltage Through Precision Multi-Turn Potentiometer Partial Pressure Get), The Input Voltage Is Less Than The Reference Voltage, The Relay Pulls, The Circuit Is Connected, At The Same Time The Work Of The Corresponding Channel Indicator Light.
Module Uses: Automotive Circuit Modification, Industrial Equipment, Experimental Testing, Circuit Application Testing.
Function 1: Input Voltage And Setting Voltage Between The Comparison, The Input Voltage Is Greater Than The Setting Voltage, The Circuit Is Turned On, While The Corresponding Channel Work Indicator Light; Function 2: Input Voltage And Setting Voltage Between The Comparison The Input Voltage Is Less Than The Set Voltage , The Circuit Is Turned On, While The Corresponding Channel Work Indicator Light.
Input A Voltage Compared With The Reference Voltage (Reference Voltage Through Precision Multi-Turn Potentiometer Partial Pressure Get),The Input Voltage Is Greater Than The Reference Voltage, The Relay Pull, The Circuit Connected, At The Same Time The Work Of The Corresponding Channel Indicator Light..
Features
- Channel difference is small, more accurate, 0.1V resolution accuracy. There are three versions of 5V / 12V / 24V optional.
- Input a voltage compared with the reference voltage (reference voltage through precision multi-turn potentiometer partial pressure get),the input voltage is greater than the reference voltage, the relay pull, the circuit connected, at the same time the work of the corresponding channel indicator light.
- Input a voltage compared with the reference voltage (reference voltage through precision multi-turn potentiometer partial pressure get), the input voltage is less than the reference voltage, the relay pulls, the circuit is connected, at the same time the work of the corresponding channel indicator light
- Function 1: Input voltage and setting voltage between the comparison, the Input voltage is greater than the setting voltage, the circuit is turned on, while the corresponding channel work indicator light; Function 2: Input voltage and setting voltage between the comparison The input voltage is less than the set voltage , the circuit is turned on, while the corresponding channel work indicator light
- Module uses: automotive circuit modification, industrial equipment, experimental testing, circuit application testing
- See more on Amazon...
Brand: Taidacent | Manufacturer: Taidacent
See On Amazon #19
5V/12V/24V 8 Channel Optocoupler Relay Module Board with High/Low and Trigger Power Indicator Light(24V)
Asin: B07P8V4VHB | Model: Walfront6z2cgh3brp-03 | PartNumber: Walfront6z2cgh3brp-03 | Ean: 0783335929832 | UPC: 783335929832
Jumper Setting ::Each Path Of The Module Can Be Triggered By The High Level Or Low Level Through A Jumper Setting..
Power Indicator Light ::Power Indicator Light (Green), 8-Way Relay State Indicator Light (Red)..
Fault-Tolerant Design ::Fault-Tolerant Design,Even If The Control Line Breaks,The Relay Will Not Move..
Multiple Choice ::Module Operating Voltage Is 5V,12V,24V For Choice..
Features
- Strong driving ability ::Adopt patch photocoupler isolation, strong driving ability, stable performance. Trigger current is 5mA.
- Multiple choice ::Module operating voltage is 5V,12V,24V for choice.
- Jumper setting ::Each path of the module can be triggered by the high level or low level through a jumper setting.
- Fault-tolerant design ::Fault-tolerant design,even if the control line breaks,the relay will not move.
- Power indicator light ::Power indicator light (green), 8-way relay state indicator light (red).
- See more on Amazon...
Brand: Walfront | Manufacturer: Eujgoov
Dimensions: 0.00 x 0.00 x 0.00 inches
See On Amazon #20
Alinan 8pcs 2CH Optocoupler PC817 2 Channel Isolation Board Voltage Converter Adapter Module 3.6-30V Driver Photoelectric Isolated Module
Asin: B09ZXP8GJF | Model: Alinan | PartNumber: Alinan | Ean: 0701715514942 | UPC: 701715514942
★Photoelectric Isolation Has Strong Anti-Interference Ability. Can Drive Big Behindpower Triodes, Mos Tubes, Etc., Where High Voltage Driving Is Required, Can Also Directly Drive Low Power 24V Relays..
★Through The Jumper Cap Can Achieve Whether The Output Is High Potential Output Or Low Output.The 2Th And 817 On The Board Are Independent, Which Can Realize Simultaneous Control Of Different Voltages, Etc..
★If It Is A Pulse Signal, Please Note That The Limit Of 817 Is Below 4Khz. If The Control Signal Is Greater Than 4Khz, Please Do Not Use This Module, It Will Not Work Properly..
★Can Realize 3.3V Or 5V To Control The Interface Of 3.6-30V Voltage . After The Control Terminal Is Turned On, The Controlled Terminal Will Also Be Turned On..
Features
- Driving Port Signal Voltage: 3.6-24V; Output Port Voltage Port: 3.6-30V
- Can realize 3.3V or 5V to control the interface of 3.6-30V voltage . After the control terminal is turned on, the controlled terminal will also be turned on.
- Photoelectric isolation has strong anti-interference ability. Can drive big behindPower triodes, MOS tubes, etc., where high voltage driving is required, can also directly drive low power 24V relays.
- If it is a pulse signal, please note that the limit of 817 is below 4KHZ. If the control signal is greater than 4KHZ, please do not use this module, it will not work properly.
- Through the jumper cap can achieve whether the output is high potential output or low output.The 2th and 817 on the board are independent, which can realize simultaneous control of different voltages, etc.
- See more on Amazon...
Brand: Alinan | Manufacturer: Alinan
See On Amazon #21
HiLetgo 2pcs INA3221 Current Power Voltage Monitor Triple Channel Monitor High-Side Measurement Shunt and Bus Voltage Monitor with I2C SMBUS Interface
Asin: B09KGYY6QW | Model: 3-01-1673 | PartNumber: 3-01-1673
The I2c- And Smbus Interface Features Four Programmable Addresses..
This Ina3221 Monitors Both Shunt Voltage Drops And Bus Supply Voltages, In Addition To Having Programmable Conversion Times And Averaging Modes For These Signals..
This Board/Chip Uses I2c 7-Bit Addresses 0X40, 0X41, 0X44, 0X45, Selectable With Jumpers..
High-Side Measurement, Shunt And Bus Voltage Monitor With I 2C- And Smbus Interface.
Features
- INA3221 Current Power Voltage Monitor Triple Channel Monitor
- High-Side Measurement, Shunt and Bus Voltage Monitor with I 2C- and SMBUS Interface
- The I2C- and SMBUS interface features four programmable addresses.
- This board/chip uses I2C 7-bit addresses 0x40, 0x41, 0x44, 0x45, selectable with jumpers.
- This INA3221 monitors both shunt voltage drops and bus supply voltages, in addition to having programmable conversion times and averaging modes for these signals.
- See more on Amazon...
Brand: HiLetgo | Manufacturer: HiLetgo
See On Amazon #22
12V/24V DPST 80A/250VAC 50A/30VDC Latching Relay Module
Asin: B0B8H42YQ5 | Model: F-1055 | PartNumber: F-1055 | Ean: 6954525631536
Operating Voltage Support Dc 12V / 24V, The Red Dip Switch On The Side Can Be Set..
Screw-Type Terminal Blocks Facilitate The Connection Of Cables. The Abs Plastic Shell Ensures Better Electrical Insulation..
Support Signal High Or Low Action, The Red Dip Switch On The Side Can Be Set. Can Support Multiple Types Of Controllers, Raspberry Pi / Arduino / Esp32 / Beaglebone / Plc / Mcu / Dsp Etc, Of Course You Can Also Directly Connect Two Momentary Switches. With Override Switch Function, Override Switch Setting To On Or Off, External Control Signals Will Be Invalid..
Output Switch Dpst (Double Pole Single Throw). Rated Current/Voltage Ac 80A/250V Or Dc 50A/30V (Each Switch Channel)..
Features
- If you are looking for a latching relay with power-off memory, then this module will be very suitable for you. Even if the operating power is turned off, the status of the output switch will not be affected in any way, it will remain in the state before the power was turned off.
- Output switch DPST (Double Pole Single Throw). Rated current/voltage AC 80A/250V or DC 50A/30V (each switch channel).
- Operating voltage support DC 12V / 24V, the red DIP switch on the side can be set.
- Support signal High or Low action, the red DIP switch on the side can be set. Can support multiple types of controllers, Raspberry Pi / Arduino / ESP32 / BeagleBone / PLC / MCU / DSP etc, of course you can also directly connect two momentary switches. With override switch function, override switch setting to ON or OFF, external control signals will be invalid.
- Screw-type terminal blocks facilitate the connection of cables. The ABS plastic shell ensures better electrical insulation.
- See more on Amazon...
Brand: OONO | Manufacturer: CZH-LABS
Dimensions: 6.69 x 2.91 x 3.86 inches
See On Amazon #23
SPDT 10Amp Power Relay Module, Plastic Enclosure and Pre-Wired (AC/DC 12V)
Asin: B0BBR7Z3G6 | Model: F-1056 Series | PartNumber: F-1056 Series | Ean: 6954525631543
Packing List: 1X Relay Module, 1X Npt 1/2” Zinc Alloy Conduit Locknut, 2X M3x50mm Screws..
This Is A Simple And Practical Passive Relay Module, Which Is Very Convenient To Use. All Wires Lead Out Via 1/2” Mounting Nipple, It Can Be Flexible Mounting With Your Junction Box / Outlet Box. Two Screw Mounting Holes Are Convenient For You To Fix It On The Wall Or Wooden Board..
Polycarbonate Plastic Enclosure With A Npt 1/2” Mounting Nipple, Led Indicator And Pre-Wired For A Money-Saving Installation That Is Easy And Quick..
Output Switch Spdt (Single Pole Double Throw), Rated Current 10A / 277Vac Or 10A / 28Vdc..
Features
- Input control signal version: AC/DC 12V, AC/DC 24V, AC 120V, AC208-277V four versions selectable.
- Output switch SPDT (Single Pole Double Throw), rated current 10A / 277VAC or 10A / 28VDC.
- Packing list: 1x relay module, 1x NPT 1/2 Zinc alloy conduit locknut, 2x M3x50mm screws.
- Polycarbonate plastic enclosure with a NPT 1/2 mounting nipple, LED indicator and pre-wired for a money-saving installation that is easy and quick.
- This is a simple and practical passive relay module, which is very convenient to use. All wires lead out via 1/2 mounting nipple, it can be flexible mounting with your junction box / outlet box. Two screw mounting holes are convenient for you to fix it on the wall or wooden board.
- See more on Amazon...
Brand: OONO | Manufacturer: CZH-LABS
Dimensions: 1.81 x 5.31 x 2.76 inches
See On Amazon #24
3 Phase Voltage Monitoring Sequence Relay JVR800-2 Voltage Protection Relay Under Over Voltage Protector
Asin: B07Q5Z1CGM | Model: YWBL-WH6ewt8gi2yq | PartNumber: YWBL-WH6ewt8gi2yq | Ean: 0747333418897 | UPC: 747333418897
The Composition Of This Product: Three-Phase Voltage Protector, Chronograph And Counter Are Integrated In One Relay..
The Lcd Can Display Data For Easy Reading..
2 Rest Modules Are Optional, Manual And Automatic..
Practicality: This 3-Phase Voltage Relay Does Not Require An External Power Supply. Has Practical Functions: Power Delay, Output Test, Etc..
Features
- Function: This voltage protection relay has overvoltage, undervoltage, phase loss, phase sequence and unbalanced three-phase voltage protection.
- Practicality: This 3-phase voltage relay does not require an external power supply. Has practical functions: power delay, output test, etc.
- The Composition of This Product: Three-phase voltage protector, chronograph and counter are integrated in one relay.
- 2 rest modules are optional, manual and automatic.
- The LCD can display data for easy reading.
- See more on Amazon...
Brand: YWBL-WH | Manufacturer: YWBL-WH
Dimensions: 0.00 x 0.00 x 0.00 inches | Weight: 0.29 Pounds
See On Amazon #25
Voltage Reference Module, High 4 Channel Voltage Reference, High Voltage Reference for Transformer Module Industrial Supplies
Asin: B0D2WHPFLQ | Model: Generic39q6cxagf5 | PartNumber: Generic39q6cxagf5
Built-In Ad584kh, Highest Accuracy And Stability.
Single-Button Operation Switch Reference Voltage.
Transparent Case Can Protect Module From Damage And Provide Clear View.
Easy To Carry, Can Be By Dc 5V,With Indicator.
Features
- The MCU switch 4-channel reference voltage output with LED indicators
- Easy to carry, can be by DC 5V,with indicator
- Built-in AD584kh, highest accuracy and stability
- Transparent case can protect module from damage and provide clear view
- Single-button operation switch reference voltage
- See more on Amazon...
Brand: Generic | Manufacturer: Generic
Warranty: Manufacturer warranty for 90 day
See On Amazon #26
Abwan Relay Switch Protection Device, RC Absorption/Snubber Circuit Module Relay Contact Protection Resistance Circuit/electromagnetic Anti-Interference Module
Asin: B09F116Y27 | Ean: 9469983941167
With Varistor, To Prevent Excessive Fluctuations In Voltage Or Current Is Too Large And Resulting In Relay Contact Adhesion..
Instructions For Use: This Module Is Suitable For Circuits Containing Inductive Loads And Switching Devices Such As Relays And Thyristors. When Used, The Two Connectors Of The Module Connect To Two Contacts Of The Relay, Or Parallel With The Thyristor, To Avoid Induced Electromotive Force Damage The Relay Or Thyristor..
Adopt Crimp Terminals That Make Wiring Become More Convenient..
Rc Absorption Circuit,Absorb Induced Electromotive Force That From Inductive Load. To Provide Anti-Interference Ability Of The Circuit..
Features
- RC absorption circuit module used on protecting the relay or thyristor because it can avoid damage that from inductive electromotive force generated by the inductive load when on or off. Preventing electromagnetic interference and increasing the anti-jamming capability of the microcontroller.
- RC absorption circuit,absorb induced electromotive force that from inductive load. To provide anti-interference ability of the circuit.
- With varistor, to prevent excessive fluctuations in voltage or current is too large and resulting in relay contact adhesion.
- Adopt crimp terminals that make wiring become more convenient.
- Instructions for use: This module is suitable for circuits containing inductive loads and switching devices such as relays and thyristors. When used, the two connectors of the module connect to two contacts of the relay, or parallel with the thyristor, to avoid induced electromotive force damage the relay or thyristor.
- See more on Amazon...
Brand: Abwan | Manufacturer: Abwan
See On Amazon #27
LM YN Digital Voltage Comparator 0-100V Voltage Measurement Control Voltage Measuring Charge Discharge Protection Overvoltage Undervoltage Overload Protection (12V)
Asin: B01M1JEH7T | Model: DVC01100V | PartNumber: DVC01100V | Ean: 0603983633151 | UPC: 603983633151
Users Can Set The Upper Limit Voltage And The Lower Voltage Limit; Measuring Range Of Dc 0-100V, Measuring Accuracy ±0.1V..
Https://1Drv.Ms/B/S!Alzqucoyzqhkggauc7zpvpgehz_S?E=4N9hmh.
Module Work Voltage: Dc 12V (Nominal Voltage Should Not Exceed +/- 10%)..
Lm Yn Digital Voltage Comparator Module User Manual.
Increase Automatic Power Saving Feature, Users Can Customize The Settings; All Set Parameters Can Be Automatically Saved, Set The Content Of Non-Volatile..
Module Carefully Processed Genuine Quality Components Made Of Stable Performance, It Can Be Widely Used In A Variety Of Voltage Measurement And Control Types Of Occasions. The Controller 5 Different Preset Function..
Features
- LM YN Digital Voltage Comparator module is a versatile voltage monitoring controller, using industrial grade microcontroller as the main control unit, wide measurement range, high accuracy.
- Module carefully processed genuine quality components made of stable performance, it can be widely used in a variety of voltage measurement and control types of occasions. The controller 5 different preset function.
- Users can set the upper limit voltage and the lower voltage limit; measuring range of DC 0-100V, measuring accuracy 0.1V.
- Increase automatic power saving feature, users can customize the settings; all set parameters can be automatically saved, set the content of non-volatile.
- Module work voltage: DC 12V (nominal voltage should not exceed +/- 10%).
- LM YN Digital Voltage Comparator Module User Manual
- https://1drv.ms/b/s!AlzQUCOyZQhKggaUC7ZpVPgEHz_S?e=4n9HmH
- See more on Amazon...
Brand: LM YN | Manufacturer: LM YN
Dimensions: 0.79 x 2.64 x 1.73 inches | Weight: 0.04 pounds
See On Amazon #28
SPDT 10Amp Power Relay Module, Plastic Enclosure and Pre-Wired (AC/DC 24V)
Asin: B0BBR96K9P | Model: F-1056 Series | PartNumber: F-1056 Series | Ean: 6954525631550
Packing List: 1X Relay Module, 1X Npt 1/2” Zinc Alloy Conduit Locknut, 2X M3x50mm Screws..
This Is A Simple And Practical Passive Relay Module, Which Is Very Convenient To Use. All Wires Lead Out Via 1/2” Mounting Nipple, It Can Be Flexible Mounting With Your Junction Box / Outlet Box. Two Screw Mounting Holes Are Convenient For You To Fix It On The Wall Or Wooden Board..
Polycarbonate Plastic Enclosure With A Npt 1/2” Mounting Nipple, Led Indicator And Pre-Wired For A Money-Saving Installation That Is Easy And Quick..
Output Switch Spdt (Single Pole Double Throw), Rated Current 10A / 277Vac Or 10A / 28Vdc..
Features
- Input control signal version: AC/DC 12V, AC/DC 24V, AC 120V, AC208-277V four versions selectable.
- Output switch SPDT (Single Pole Double Throw), rated current 10A / 277VAC or 10A / 28VDC.
- Packing list: 1x relay module, 1x NPT 1/2 Zinc alloy conduit locknut, 2x M3x50mm screws.
- Polycarbonate plastic enclosure with a NPT 1/2 mounting nipple, LED indicator and pre-wired for a money-saving installation that is easy and quick.
- This is a simple and practical passive relay module, which is very convenient to use. All wires lead out via 1/2 mounting nipple, it can be flexible mounting with your junction box / outlet box. Two screw mounting holes are convenient for you to fix it on the wall or wooden board.
- See more on Amazon...
Brand: OONO | Manufacturer: CZH-LABS
See On Amazon #29
Double LED Display Protector Intelligent Single Phase Voltage Current Protector Adjustable Voltage Protective Device AC230V 63A
Asin: B09TTKLFH5
Reset Mode Selection--This Protector Has Reset Mode Selection.Low Power Consumption And Long Mechanical Life.
Application--It Is Mainly Used For The Protection Of Over-Voltage, Under-Voltage Or Over-Current In The Distribution Line Of Residential Household Box Or The Protection Of Single-Phase Power Equipment.
Adjustable--Overvoltage Value, Undervoltage Value, Overcurrent Protection And Fault Recovery Delay Time Are Adjustable.
Double Led Display--Double Led Display, This Protector Can Display Voltage, Current, Etc..
Features
- Functions--The protector has over voltage protection, under voltage protection and other functions
- Double LED Display--Double LED display, this protector can display voltage, current, etc.
- Reset Mode Selection--This protector has reset mode selection.Low power consumption and long mechanical life
- Adjustable--Overvoltage value, undervoltage value, overcurrent protection and fault recovery delay time are adjustable
- Application--It is mainly used for the protection of over-voltage, under-voltage or over-current in the distribution line of residential household box or the protection of single-phase power equipment
- See more on Amazon...
Brand: Walfront | Manufacturer: Walfront
Dimensions: 1.42 x 3.35 x 2.56 inches
See On Amazon #30
3 Phase Sequence Protection Relay,RD6-W 208-480VAC Voltage Over Under Voltage Phase Failure Relay,LCD Guide Rail Voltage Phase Loss Protector Monitoring Relay
Asin: B081Q55J86 | Model: Jectsefmo9sg1izy | PartNumber: Jectsefmo9sg1izy | Ean: 0738585076737 | UPC: 738585076737
Real-Time Monitoring Of Three-Phase Overvoltage, Undervoltage, Phase Error, Phase Loss Faulty..
Timekeeping And Counting Function..
Powered By The Measuring Circuit, No Additional Auxiliary Power Required..
Lcd Display Shows Voltage Value, Fault Status, Parameter Setting..
Features
- Standard modular construction, rail mounted.
- LCD display shows voltage value, fault status, parameter setting.
- Real-time monitoring of three-phase overvoltage, undervoltage, phase error, phase loss faulty.
- Powered by the measuring circuit, no additional auxiliary power required.
- Timekeeping and counting function.
- See more on Amazon...
Brand: Jectse | Manufacturer: Jectse
Dimensions: 0.00 x 0.00 x 0.00 inches | Weight: 0.29 pounds
See On Amazon
Looking For Something Else?
Search