The LV847349 is a closing voltage release (XF type) from the MasterPact range, designed for control applications on fixed-mounted MasterPact MTZ1, MTZ2, and MTZ3 circuit breakers. It operates on a 12 VDC supply voltage.
The closing coil draws 4.5 W holding power on a 12 VDC supply. The threshold tripping voltage range is 0.85 to 1.1 Un. Maximum response time on closing is 65 ms for MasterPact MTZ1, 80 ms for MTZ2, and 90 ms for MTZ3. That's the time from energizing the coil to the main contacts making — factor it into your control sequence timing if you're coordinating with other devices.