![5 v 30 a C (full) optical 5 v 30 a C (full) optical](https://www.bifelectronic.com/2652-large_default/5-v-30-a-type-a-normally-open-optical-coupling-isolation-relay-module.jpg)
5 v 30 A type A (normally open) optical coupling isolation relay module
1.On board EL817 photoelectric coupler with photoelectric isolating anti-interference ability strong.
2.On board 5 v,30 a / 250 vac,30 a / 30 VDC relays,the relay long life can absorb 100000 times in a row.
3.Module can be directly and MCU I/O link,with the output signal indicator.
4.Module with diode current protection,short response time.
5.Module is normally open (NO) output,impermanence closed (NC) output.
6.PCB size: 34(mm) x39(mm).