The Schneider Electric LV839241 is a voltage release — specifically an MX 2nd opening coil — designed for MasterPact MTZ drawout circuit breakers. It is a control device that trips the breaker when the control voltage drops to between 0.7 and 1.1 times the rated Un, providing remote or undervoltage protection. Rated for a control circuit voltage of 48 V AC at 50/60 Hz or 48 to 60 V DC, it draws a holding power of 4.5 VA (AC) or 4.5 W (DC). The response time is 50 ms ± 10% across all MTZ frame sizes (MTZ1, MTZ2, MTZ3).
Mounting mode is drawout, meaning this coil plugs into the MasterPact MTZ's secondary disconnect block inside the cassette. No hard wiring inside the breaker — the kit is complete with the connector that mates to the cradle. What ships in the carton: one unit, ready to install.