This closing coil is used for the instantaneous remote tripping of the MasterPact NT/NW circuit breaker. In conjunction with an MX opening coil and an MCH motor operator, the MasterPact can be controlled remotely. Tripping occurs instantaneously via Modbus communication. Instantaneous closing coil XF diag&,com 277V AC for NT in withdrawable design. Instantaneous closing coil XF diag&,com 277V AC for NT in withdrawable design. This tripping coil can only be ordered in conjunction with Modbus communication.