Single-channel relay switching module with high-level optocoupler triggering for ESP8266 development boards, 3V (pack of 5)

Single-channel 3V power relay module with optocoupler isolation control. It supports two power inputs and offers robust anti-interference capabilities.

Its response time is less than 20 ms and its lifespan can reach 100,000 actuations.

It is equipped with an integrated signal output indicator, terminal blocks, and mounting holes, and is compatible with loads of 10 A 250 V AC and 10 A 30 V DC.

Module dimensions: 70 mm x 17 mm x 20 mm (2.76 x 0.70 x 0.79 inches (L x W x H)).

Note: When the jumper is connected, the relay's power supply also serves as the signal supply. When disconnected, the relay is isolated from the signal supply.