The Schneider Electric ENW21536 is a drawout-style coil for the EasyPact NW range, used as the MX (shunt trip), XF (close coil), or MCH (undervoltage release) in NW-series air circuit breakers and switch-disconnectors. It's electrically operated with a maintained control signal and draws its supply from a 48/60 V DC control circuit.
The 48/60 V DC control circuit voltage means this coil operates on a nominal 48 V or 60 V DC supply — common in industrial control panels with battery-backed DC buses or telecom-derived voltages. The drawout mounting style means it plugs into the breaker cradle, not hard-wired in place, so a swap takes seconds without disturbing the main power wiring. The maintained control signal type keeps the coil energized continuously once the command is applied (typical for shunt-trip and close-coil functions); a momentary pulse would need a different coil variant.