4-Way Contact Query Unit – BE/S4.20.3.2

132.29 GBP 113.63 GBP 14% Off

The ABB BE/S4.20.3.2 delivers four isolated binary inputs with manual contact query, ideal for KNX and industrial control. Each channel supports ±24 VDC or 0–30 V AC, offering robust detection of on/off states in demanding environments.

Share: