1.on-board EL817 photoelectric coupler with photoelectric isolating anti-interference ability strong.
2.on-board 12 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.
6.PCB size: 34(mm) x39 (mm).