Contact element, Standard/Approval: UL/CSA, IEC, Construction size: NZM1/2/3/4, Connection technique: Cage Clamp, Fixing: Front fixing, Description: When using emergency switching off actuators M22-PV… max. 2 contact elements = 4 NC / N/O contacts, Cage Clamp is a registered trademark of Wago Kontakttechnik GmbH/Minden, Germany, Contacts N/O = Normally open: 2 N/O, Degree of Protection: IP20, Connection to SmartWire-DT: no, Connection type: Double contact, Description of HIA trip-indicating auxiliary contact: General trip indication '+', when tripped by shunt release, overload release , short-circuit release or by the residual-current release due to residual-current., Can be used with NZM1, 2, 3 circuit-breaker: a trip-indicating auxiliary contact can be clipped into the circuit-breaker., Can be used with NZM4 circuit-breaker: up to two standard auxiliary contacts can be clipped into the circuit-breaker., Any combinations of the auxiliary contact types are possible., Not in combination with switch-disconnector PN…, Marking on switch: HIA, Labeling in FI-Block: HIAFI., If the trip-indicating auxiliary switch in the fault current block is used , the NC contacts operates as a N/O contact and the N/O contact operates as an NC contact., Description standard auxiliary contact HIN: Switching with the main contacts Used for indicating and interlocking tasks., Can be used with NZM1 circuit-breaker: a standard auxiliary contact can be clipped into the circuit-breaker., Can be used with NZM2 size circuit-breaker: a standard auxiliary contact can be clipped into the circuit-breaker., Can be used with NZM3, 4 circuit-breaker: up to three standard auxiliary contacts can be clipped into the circuit-breaker.