EZAUVR380AC Undervoltage release UVR for EZC100

Under Voltage Release (UVR) this release trips the circuit breaker when the control voltage drops below a tripping threshold.

Tripping threshold between 0.35 and 0.7 times the rated voltage.

Circuit breaker closing is possible only if the voltage exceeds 0.85 times the rated voltage.

Operation

When the circuit breaker has been tripped by an UVR release, it must be reset locally:

• UVR tripping takes priority over manual closing.
• in the presence of a standing trip order, closing of the contacts, even temporary, is not possible.

Circuit breaker tripping by an UVR release meets the requirements of standard IEC 60947-2.

Specification