Reviews Relay Control

AEDIKO 4pcs Relay Module DC 5V Relay Switch 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level Trigger

Fault-Tolerant Design: Fault Tolerant Design, Even if the Control Line is Broken, the Relay will not Operate.
All Interfaces of Relay can be Wired Out Through the Terminals Directly,Normally Open and Normally Closed.
Optocoupler Isolation:1 Channel Relay Board use Optocoupler Isolation that has Strong Driving Ability and Stable Performance ,The Isolation Circuit Prevent Damages to I / O Port by Relay Switch Current.
Jumper Design: The Relay Module has a Jumper That You Can Set Rather the Unit State Changes with High or Low Signal. Has Screw Terminals for Relay (NC,C,NO) and for Input.
Wide Application: DC 5V Relay Module Works Well with ARM /PIC /AVR /MCU/Raspberry/CNC Machine/ PS4 etc..

Convenient Monitoring: The voltage relay can monitor its own operating voltage (true rms measurement)..
High Accuracy: The voltage relay has 8 adjustable rated voltages, and the voltage measurement accuracy is less than 1%..
Application: Equipment protection and control (tower cranes, elevators, agricultural equipment, refrigerated trucks).
LED Indicator: The working status of the voltage control relay is indicated by the LED indicator..
Small Size and Easy to Install: The voltage protection relay is ultra-small and can be mounted on a 35mm DIN rail..

This Relay Board Maximum load: AC 250V/10A, DC 30V/10A With power and relay action indicator.each relay has normally open and normally closed contact. Can be selected by jumper relay and TTL or ground..
Main Specification Peak Load of NO Connector: AC 250V/10A, DC 30V/10A.
These Relay Board use photocoupler isolation that has strong driving ability and stable performance.The isolation circuit prevent damages to I / O port by relay switch current.The module has a jumper so you can set rather the unit state changes with high or low signal. Has screw terminals for relay (NC,C,NO) and for input.
Using SMD optocoupler isolation, strong driving capability, stable performance.Fault tolerant design, even if the control line is broken, the relay will not operate.
And interface design humanized, all the interface can be directly connected through the terminal lead, so convenient..
Wide Application These 5V relay board works well with for ARM /PIC /AVR /MCU/Raspberry/CNC machine /etc..

This Relay Board Maximum load: AC 250V/10A, DC 30V/10A With power and relay action indicator.each relay has normally open and normally closed contact. Can be selected by jumper relay and TTL or ground..
Main Specification Peak Load of NO Connector: AC 250V/10A, DC 30V/10A.
These Relay Board use photocoupler isolation that has strong driving ability and stable performance.The isolation circuit prevent damages to I / O port by relay switch current.The module has a jumper so you can set rather the unit state changes with high or low signal. Has screw terminals for relay (NC,C,NO) and for input.
Using SMD optocoupler isolation, strong driving capability, stable performance.Fault tolerant design, even if the control line is broken, the relay will not operate.
And interface design humanized, all the interface can be directly connected through the terminal lead, so convenient..
Wide Application These 12V relay board works well with for ARM /PIC /AVR /MCU/Raspberry/CNC machine etc..

2pcs/lot 8 Channel relay module board, Working voltage: 5V.
This board is for Arduino PIC AVR DSP ARM.
Support all single-chip microcomputer control,Industrial circle,PLC controller,Household intelligent control.
Relay output maximum contact is AC250V 10A and DC30V 10A.
Widely used for all MCU control, industrial sector, PLC control, smart home control..

Inexpensive protection for an electric fan and a vehicle's wire harness.
Relay activation by grounding the relay coil can be provided by most Powertrain Control Modules.
Provides direct battery power, protects PCM from voltage spikes and prevents the fan from back feeding through the vehicle's wire harness.
Kit includes weatherproof: SPST 35-amp relay, 30-amp circuit breaker, relay base with 10' harness, crimp-on terminals and mounting hardware.

Convenient Monitoring: The voltage relay can monitor its own operating voltage (true rms measurement)..
High Accuracy: The voltage relay has 8 adjustable rated voltages, and the voltage measurement accuracy is less than 1%..
Application: Equipment protection and control (tower cranes, elevators, agricultural equipment, refrigerated trucks).
LED Indicator: The working status of the voltage control relay is indicated by the LED indicator..
Small Size and Easy to Install: The voltage protection relay is ultra-small and can be mounted on a 35mm DIN rail..

Item 77119 (replaces the old 74618 as of September 10, 2013).
What is included: NewUpgraded IQ 2020 Heater Relay Board w/ Jumpers & Shortened Screws for the front cover of the IQ2020.
Description: New(New as of 9-10-2013) This IQ2020 Heater Relay Circuit Board is the newest revision for the 2001-2009.5 IQ2020 Control Box. It's....
Symptoms this part has failed: No power going to the heater even though the red HTR ON L.E.D. light is lit inside the IQ2020 control box. The heater....
Note: In older control boxes, you may encounter that a chip on this new heater relay board prevents the metal guard from seating properly and it may....

【1 Channel Relay Module】- This Relay Board provides a single relay that can be controlled by any 3V/3.3V digital input from your microcontroller IO..
【Main Specification】- The 3v Relay 1 Channel power switch module compatible with 10A 250VAC and 10A 30VDC load.4pcs * 2.5 mm Fixed Bolt Hole..
【Adopted Optocoupler Isolation】- 3V/3.3V power relay module supports photocoupler isolation control and dual power supply input ensure high anti-interference ability. Fast response time less than 20ms and long life time up to 100,000 times snap action with diode freewheel protection..
【Jumper Caps】You can select whether the relay and the signal use the same power supply or not by removing the jumper caps on the pins. And It is better to share the same power supply, because that is more convenient for using..
【Wide Application】- These 3v relay board works well with Arduino/ ARM /PIC /AVR /MCU/Raspberry/CNC machine/ PS4/3.3V /NodeMCU/IOT/ ESP8266 module etc..