The Schneider Electric LV847310 is a MasterPact XF communicating closing voltage release — a control accessory that closes the circuit breaker on command from a 12 VDC control signal. It is designed for fixed-mounted MasterPact MTZ1, MTZ2, and MTZ3 breakers, and it reports diagnostic and status information (error, push-button activated, coil powered, ready to close or open) over the communication bus. The closing coil draws 4.5 W holding power and operates within a threshold tripping voltage range of 0.85 to 1.1 Un on closing. Maximum response time varies by breaker frame: 65 ms on MasterPact MTZ1, 80 ms on MTZ2, and 90 ms on MTZ3.
The LV847310 is a fixed-mount accessory that installs directly into the MasterPact MTZ1/2/3 breaker mechanism. It communicates status and diagnostics, so the control wiring must include the communication bus connection in addition to the 12 VDC closing supply. Verify the free-wheel diode polarity on the coil drive circuit before energizing — the holding power is only 4.5 W, but the inrush can be higher.