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/C = Normally closed: 2 NC, Contacts Notes: = safety function, by positive opening to IEC/EN 60947-5-1, Actuator travel and actuation force as per DIN EN 60947-5-1, K.5.4.1: mm 4.8, Maximum travel: mm 5.7, Minimum force for positive opening: N 20, 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., ., 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.