Overcurrent trip unit MN for Compact NSX 220-240VAC LV429407

Undervoltage release for Compact NSX circuit breakers

This is an MN voltage release designed to work with Compact NSX circuit breakers with a voltage of 220-240VAC. Its main function is to provide an additional level of safety by tripping the circuit breaker when the supply voltage drops to 35% of its nominal value. This solution is ideal where voltage stability is critical for the proper operation of the installation and protection of connected devices.

Functionality and application

The MN release opens the circuit breaker not only in the event of a power failure, but also when the emergency shutdown button is manually pressed. This function is particularly important in situations requiring immediate disconnection of power, e.g. during maintenance or in the event of a hazard. Because the release is constantly powered, it ensures reliable operation even in the event of temporary power outages – unless caused by intentional disconnection or wiring errors.

Compatibility and installation

This release is compatible with both motor circuit breakers and standard circuit breakers. Connection is made using spring clamps, which simplifies and speeds up installation and ensures a secure electrical connection. The ability to use with cam switches expands its scope of use.

Advantages for installers and users

• Additional protection: The MN release protects the installation against the effects of voltage drops, which can lead to damage to connected devices.
• Safety: The manual emergency shutdown button allows for quick and safe disconnection of power in emergency situations.
• Versatility: Compatibility with different types of circuit breakers (motor and standard) and cam switches makes it a versatile solution.
• Simple installation: Spring clamps simplify and speed up installation.
• High reliability: Constant power supply to the release ensures its readiness for action in any situation.
• Durability: The materials used guarantee long life and resistance to environmental conditions.