Description

5V to 10A/250V relay module – with optoisolation for Arduino – 2 channels

Universal 5V relay module with optoelectronic isolation for 10A/250VAC. The circuit allows you to control the actuators using the ports of the microcontroller or any runner kit.

The module is supplied with 5V to the corresponding VCC and GND pins.

Thanks to the use of opto-isolation, the current consumption of the channel is minimal, so you can easily control the microcontroller.

The operating status LED of each relay channel indicates that the relay is switched on.

The module is switched on by applying a low LOW state, and therefore ground to the signal inputs IN1, IN2.

The relay can be used to build a simple unloader.

Product features

• Module equipped with two SRD-5 relays with coil powered by 5 V with optical input isolation.
• The module allows you to control two actuators drawing up to 10 amps each using the ports of a microcontroller or any Arduino development kit
• Opto-isolation separates the control signal from the relay power supply part, thus ensuring the safety of the control system operation.
• Application for contact boards, runtime modules, arduino, etc.
• For proper operation, all you need to do is connect the relay power supply and the digital control signal.
• Application examples:
  • Lighting controller
  • Controller of executive systems
  • Switch for electrical equipment including motors
• The module has:
  • lED power signaling
  • lED indication of relay status
  • Activation of the relay with the LOW state

Technical data

• Two channels of operation
• VCC supply voltage: 5 V
• SRD-5VDC-SL-C relay (documentation) – 2 pieces
• Coil voltage: 5 V
• Input voltage: from 3 V to 5 V
• Maximum contact voltage: 250 VAC 30VDC
• Maximum current: 10 A
• Plate dimensions 48x27x20 mm

Connecting

• The module has four input leads VCC, GND, IN- and IN+.
• In order for the circuit to work properly, it is necessary to connect
  • 5 V power supply to the VCC pin
  • ground to GND
  • input signals to IN1 and IN2 (first and second channels).
• Thanks to the use of optical isolation, the input voltage can take a value from 3 V to 5.5 V.
• The jumper allows you to select the state with which the relay will be switched on:
  • Jumper between VCC and JD – relay switched on
  • Jumper between VCC and JD – relay channel test (relay is not switched on)

Video presentations

Guide – relays with Arduino