Application Protection functions of duplex insulation,water proof and dust proof. Main Technical Parameters Auxiliary Contact Model Type Installation Contact type HGV2-AE11 Instantaneous auxiliary contact In the front(every breaker is one) N/O+N/C HGV2-AE20 N/O+N/O HGV2-AN11 Side(left side of breaker 2, at most) N/0+N/C HGV2-AN20 N/O+N/O HGV2-AD1010 Trouble signal contact + Instantaneous accessory contact Side(3)(circuit breaker left side of 1) N/O+N/O HGV2-AD1001 (Trouble)+N/C HGV2-AD0110 N/C+N/O HGV2-AD0101 (Trouble)+N/C Electricity release Model Type Installation Contact type HGV2-AU115 the under-voltage release Side(right side of breaker,one) 110.127V 50Hz HGV2-AU225 220.240V 50Hz HGV2-AU385 380.415V 50Hz HGV2-AS115 Shunt release 110.127V 50Hz HGV2-AS225 220.240V 50Hz HGV2-AS385 380.415V 50Hz Waterproof Motor Breaker Enclosure Application Type The outer cover protects the degree Model Use for motor circuit breaker with or without accessory (on the right or on the left of HGV2 it can install one accessory) surface installation, insulating,seal covering, Protect the electric conduction part IP41 HGV2-MC01 IP55 HGV2-MCO2