The Schneider Electric EZEUVRN400AC is a Type UVRN undervoltage release for the EasyPact EZC250 and EZCV250 circuit breaker frames. It operates on a 400 V AC 50/60 Hz control circuit and is designed for internal mounting inside the breaker, with pre-wired auxiliary connection terminals accepting 0 to 0.5 mm² wire.
Operating threshold & control
The undervoltage release opens the breaker when the control voltage drops to between 0.35 and 0.7 times Un, and allows closing only when voltage recovers above 0.85 times Un. The inrush power draw is 5 VA. This is a control-only accessory — it does not provide overcurrent or short-circuit protection; the host breaker handles that.