Description Noark Auxiliary & Signal Contact Units Accessories for installation devices Ex9B (Ex9BH, Ex9BN, Ex9B125, Ex9BD, Ex9BP, Ex9BL), Ex9PN, Ex9BI, Ex9IP Auxiliary contacts synchronnous with main contacts of the devices Signal contacts active on electrical tripping of the circuit breakers Shunt trip releases Locking devices Undervoltage releases Overvoltage release According to IEC/EN 60947-1 and IEC/EN 60947-5-1
