8-Channel 12V Relay Module with Opto Isolated inputs

8-Channel 12V Relay Module with Opto Isolated inputs
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Price: £14.40
(£12.00 + VAT)
Availability: 63
Model: 8RELAYBRD
Average Rating: 4 out of 5 Stars!

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20 £12.00

8-Channel 12V Relay Module with Opto Isolated inputs

If you want to switch up to 8 high current / high voltage loads from a microcontroller, this 12V relay board can do it.

It contains 8 x 12V relays rated at 10A/250V. Each relay is switched on/off by an opto-isolated digital input that can be connected directly to a microcontroller output pin. It only requires a voltage of approx 1.0V to switch the inputs on but can handle input voltages up to 12V. This makes it ideal for both 5V and 3.3V devices.

Board Size: 14cm x 5.5cm

Features

  • 8x 12V relays
  • Each relay rated at 10A / 250V
  • Each relay consumes approx 30mA when switched on (at 12V)
  • Power supply from 8V to 12V
  • Fully Opto-isolated input signals
  • Input signals from 1.0V to 12V
  • Individual indicator LEDS for each relay
  • Power On LED indicator
  • Isolated Input GND
  • 4x mounting holes

Connection

Relay Board wiring

Power Supply

A supply voltage of between 8 and 12V should be connected to the VCC and GND pins. This is used to power the relay coils when they are switched on. A power Indicator LED indicates power is supplied.

DO NOT apply power the wrong way round. This can seriously damage the components on the board

Input Signals

Opto-isolated input signals should be supplied between the COM pin (signal GND) and each input pin. There is a shorting link which links the signal ground to the power ground. If you want full isolation for your microcontroller from potentially noisy relays, this link can be removed.

 

Documents

Relay Datasheet

 

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8-Channel 12V Relay Module with Opto Isolated inputs
Click to enlarge
8-Channel 12V Relay Module with Opto Isolated inputs
Click to enlarge
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