Eaton NZM4-XU208-240AC Undervoltage Release 208-240V AC

The Eaton NZM4-XU208-240AC is a specialized undervoltage release accessory engineered for seamless integration with NZM4 series circuit breakers. This component is designed to monitor the control voltage within a range of 208-240V AC, providing an essential safety mechanism for industrial and commercial electrical distribution systems. By automatically triggering the circuit breaker when the supply voltage falls below a critical threshold, it prevents equipment damage and ensures operational safety during power fluctuations or outages.

Advantages

This undervoltage release offers high reliability and precision in monitoring electrical supply stability. Its robust design ensures compatibility with Eaton NZM4 circuit breakers, allowing for easy installation and consistent performance. By facilitating an automatic trip function, it protects sensitive downstream equipment from the risks associated with low-voltage conditions, thereby enhancing the overall longevity and safety of the electrical infrastructure.

Suitable for

• Industrial power distribution panels
• Commercial electrical systems requiring undervoltage protection
• Emergency shutdown circuits
• Protection of sensitive machinery against voltage drops

When it may not be suitable

This device is specifically calibrated for the NZM4 circuit breaker series and will not function with other breaker models. It is intended for AC voltage applications and is not compatible with DC control circuits.

Key specifications

• Rated control voltage: 208-240V AC
• Compatibility: Eaton NZM4 series circuit breakers
• Function: Automatic undervoltage release

How to use

Installation should be performed by a qualified electrician in accordance with local safety regulations. The release is mounted directly into the designated internal accessory compartment of the NZM4 circuit breaker. Ensure the power is disconnected before beginning the installation. Once inserted and secured, connect the control wiring to the appropriate terminals. After installation, verify the operation by simulating a voltage drop to ensure the breaker trips as expected.

What to consider before purchase

• Verify that your circuit breaker model is part of the NZM4 series
• Ensure your control circuit voltage matches the 208-240V AC range
• Confirm that the installation environment meets the technical requirements for this accessory

Usage recommendations

Regularly test the undervoltage release function during scheduled maintenance intervals to ensure the continued safety and reliability of your electrical protection system.