Name: OUVT-X1 Over-under Voltage Release
Brand: Chint

OUVT-X1 Over-under Voltage Release

The OUVT-X1 Over-under Voltage Release is a key accessory designed to be assembled with circuit breakers NXB-63 or NXB-40 to provide automatic protection against abnormal voltage conditions. It precisely trips the breaker when voltage is too low or too high and crucially prevents reclosing until the voltage returns to a safe range. This ensures circuit stability and vital equipment safety, safeguarding sensitive loads from damaging fluctuations. With adjustable trip settings and delay times, the OUVT-X1 offers an integral solution for enhancing safety and reliability across residential, commercial, and industrial applications.

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FAQs

What is the main function of the OUVT-X1?

It provides automatic protection against dangerous voltage fluctuations by disconnecting the circuit breaker during over-voltage or under-voltage conditions, ensuring equipment safety.

Which circuit breakers is it compatible with?

The OUVT-X1 is designed for CHINT’s NXB-63 series circuit breakers, easily attaching to the left side of the unit for fast installation.

How does it determine trip conditions?

Trips when voltage drops below 35% Ue or exceeds 105% of the 280V over-voltage setting.

Allows breaker closure only within safe limits (85%–95% of rated voltage).

How is the OUVT-X1 installed?

It is mounted on a TH35-7.5 DIN rail, connecting directly to the NXB-63 circuit breaker. Installation is quick and requires minimal wiring adjustments.

What is its service life?

The unit has a mechanical and electrical life of over 4000 cycles, ensuring reliable long-term performance under normal and fault conditions.

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OUVT-X1 Over-under Voltage Release

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