Active low relay board with 24V relays capable of being switched on-off by an opto-isolated digital input. The relays are controlled by a microcontroller connected to the output pin and require a minimum 1.5V to switch the inputs ON. Suitable for 5V and 3.3V devices, these boards are perfect for Raspberry Pi, Arduino, PIC and various other microcontrollers.
4 Channel Maximum switching voltage: 250VAC / 30VDC Maximum switching current: 10A Module operating voltage: 24V Each relay features an LED indicator Dimensions: 76 x 56 x 18mm (Length x Width x Height)
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