NORUVT21NB

An undervoltage (U/V) trip release monitors the supply voltage and automatically trips the circuit breaker when the voltage drops below an acceptable level — for example, during a brownout or partial power loss. This protects motors and sensitive equipment from running at unsafe voltages. It also prevents automatic restart after a power interruption, requiring a manual reset before reconnecting the load, which is an important safety feature in many industrial applications.

The NORUVT21NB is designed for the Noark M1 frame series, but accessory slot availability can vary depending on the specific M1 breaker model and pole count. We recommend confirming your exact Noark M1 breaker catalogue number with our team before ordering to ensure this U/V release coil will physically fit and install correctly. Contact our Calgary, Edmonton, or Vancouver counter for assistance.

Noark M1 series accessories, including the undervoltage trip release, are generally designed for field installation into a dedicated accessory slot on the breaker. However, the breaker must have an available and compatible accessory slot for the U/V release. Installation should be performed by a qualified electrician in accordance with the manufacturer's instructions and applicable Canadian Electrical Code (CEC) requirements. Our team can help confirm whether your existing M1 breaker can accept this accessory.