5V/12V/24V Relay module,4 Channel Optocoupler Module Board High & Low Trigger (5V)

The relay module is isolated by a chip-type optocoupler, which has strong driving capability and stable performance. The trigger current is 5mA. The 4-channel relay module has an operating voltage of 5V, 12V and 24V. Each path of the module can be triggered by a high or low level by a jumper setting. Fault-tolerant design, the relay will not move even if the control line is disconnected. The low level triggers the relay module's power indicator (green) and the 4-way relay status indicator (red). User-friendly interface design, all interfaces can be directly connected through the terminal leads. Four fixing bolt holes are provided.