มีของพร้อมจัดส่งภายใน 7-10 วันทำการ (In stock for delivery within 7-10 working days)
The Siemens 5ST3 COM auxiliary switch / fault signal contact for MCB, RCCB, RCBO, AFDD disconnector. The 5ST3 COM device is 24 V rated which can display status of measured data.