Blue Optoisolated 8 Relay Module
Eight-channel optocoupler-isolated relay board that lets Arduino, ESP32 or PLC outputs switch mains or DC loads up to 10 A.
Each of the eight channels has an optocoupler between the control input and a blue SRD-type relay rated 10 A at 250 VAC or 30 VDC, with screw terminals for the common, normally-open and normally-closed contacts. The inputs are typically active-low, an LED shows each channel's state, and a JD-VCC jumper lets you feed the relay coils from a separate supply for full isolation from the microcontroller. The relays have 5 V coils, and each input needs only about 5 mA, so it can be driven straight from a 5 V or 3.3 V microcontroller pin. When switching mains for home automation, lighting or pumps, use properly rated cable, a fuse and a closed enclosure, and never touch the terminals while powered.
Specifications
- Operating Voltage
- 5 V relay coils
- Interface / Output
- 8 × optoisolated inputs (active-low), ~5 mA each
- Output Rating
- 10 A 250 VAC / 10 A 30 VDC per channel
- Dimensions
- 138 × 56 × 19 mm
Add items to your cart to checkout
