This is a wireless auxiliary contact that provides remote indications of the circuit breaker status. It is used on ComPacT NSXm new generation. This wireless auxiliary contact provides OF information (ON/OFF), that indicates the position of the circuit breaker power contacts. It provides SDE information (fault trip indication), that indicates that the circuit breaker as tripped due to an electrical fault (overload, short-circuit, ground fault, earth fault). This wireless auxiliary contact works with Zigbee wireless communication protocol (IEEE 802.15.4) within the frequency range 2405-2480MHz . It is a plug & play technology for clear connection status. This wireless auxiliary contact is placed in the same position as the wired version. A LED light is integrated and gives an indication in case of tripping. Communication architecture is fully EcoStruxure Power validated, with any application.