The Schneider Electric EasyPact EZEUVRN048DC is an undervoltage release (UVRN) for the EZC250 and EZCV250 circuit breaker frames. Rated control voltage is 48 V DC. The operating threshold is 0.35 to 0.7 x Un for opening and 0.85 x Un for closing — meaning the release will trip the breaker when the control voltage falls below roughly 17 V DC and will allow re-closure only once voltage recovers above about 41 V DC. Inrush power draw is 10 W on energization.
Mounts internally inside the EZC250 or EZCV250 breaker housing — not a panel-mount accessory. Connection is via pre-wired leads accepting 0 to 0.5 mm² conductor. No separate auxiliary terminal block required; the leads route directly to the control circuit.