The ENW21525 is a closing coil for the Schneider Electric EasyPact NW range of air circuit breakers. It's the XF variant, electrically operated with a maintained control signal. Control circuit voltage is 100/125 V DC, drawing 4.5 W / 4.5 VA holding power.
The 100/125 V DC control voltage is the key fit parameter — it matches DC control circuits common in industrial switchgear, not AC coil supplies. The fixed mounting mode means this coil is designed for the breaker's own mounting frame, not a separate panel; it bolts directly into the EasyPact NW mechanism.