Eaton NZM2/3-XU110-130AC Undervoltage Release 110-130V AC

The Eaton NZM2/3-XU110-130AC undervoltage release is a specialized accessory engineered for integration with Eaton NZM2 and NZM3 series circuit breakers. This device is designed to monitor the control voltage and trigger an automatic trip of the circuit breaker if the voltage falls below the defined threshold, ensuring that electrical circuits are disconnected safely during power instability or loss. It serves as a vital safety component in industrial and commercial electrical distribution systems where consistent voltage monitoring is required to protect equipment and infrastructure.

Advantages

The primary advantage of this undervoltage release is its ability to provide reliable, automated protection against voltage drops, which helps prevent damage to sensitive electrical components. By ensuring that the circuit breaker trips when the supply voltage is insufficient, it prevents erratic operation of downstream equipment. The unit is specifically designed for seamless compatibility with the NZM2 and NZM3 frame sizes, allowing for straightforward installation and reliable performance within established Eaton power distribution architectures.

Suitable for

• Industrial power distribution panels
• Commercial building electrical systems
• Safety-critical circuit protection applications
• Emergency shutdown systems requiring voltage monitoring

This device may not be suitable for applications where the control voltage is outside the 110-130V AC range, as it will not function correctly or may cause nuisance tripping. It is also not intended for use with circuit breakers outside the specified NZM2 and NZM3 series, as the mechanical and electrical interfaces are not compatible with other models.

Key specifications

• Rated control voltage: 110-130V AC
• Compatibility: Eaton NZM2 and NZM3 circuit breakers
• Function: Automatic tripping on undervoltage

Installation should be performed by a qualified electrician in accordance with local electrical codes. The release is typically mounted within the internal accessory compartment of the circuit breaker. Ensure that the control circuit is de-energized before attempting to install or replace the module to prevent accidental contact with live parts.

What to consider before purchase

• Verify that your control voltage supply is consistently within the 110-130V AC range.
• Confirm that your circuit breaker model is part of the NZM2 or NZM3 series.
• Check the available internal space within your circuit breaker for accessory installation.

Ensure that the control circuit wiring is properly secured and that the undervoltage release is tested for functionality during the initial commissioning of the circuit breaker system.