Electronic trip unit, ComPacT NSX, Micrologic5.3E, for NSX400, 400A, 4P 4D C4045E400

Advanced protection and precision with ComPacT NSX Micrologic 5.3E trigger

This electronic trip unit, designed for ComPacT NSX400 circuit breakers, is a key element ensuring reliable and precise protection of electrical installations. It utilizes advanced Micrologic 5.3E technology, offering optimal performance in a wide range of applications. It is an ideal solution for both professional installers and end-users who expect the highest level of safety and efficiency.

Functionality and application

The C4045E400 trip unit is designed to work with four-pole (4P) circuit breakers with four contacts (4D) with a rated current of 400A. Its main task is to protect against overloads and short circuits, ensuring continuity of power supply and minimizing the risk of equipment damage. The time-delay characteristic of the trip unit allows for safe starting of devices with high inrush current – such as motors – without unnecessary tripping of the circuit. The adjustable overload setting range (160…400A) allows you to adapt the characteristics to the specific needs of the installation.

Key features and benefits

• Precise protection: Micrologic 5.3E technology provides a fast and effective response to short circuits, minimizing downtime and potential equipment damage.
• Setting flexibility: Adjustable overload setting range allows for optimal adaptation to the load characteristics, increasing system reliability.
• Wide voltage range: The trip unit works with both DC (24V) and AC (690V) power supplies, increasing its versatility.
• External power source required: Ensures independent operation of the trip unit, even in the event of a mains power failure.
• Solid construction: Compact dimensions (184.7 x 136.2 x 112.6 mm) and high-quality workmanship guarantee durability and reliability of the device in demanding working conditions.
• Advanced short-circuit parameters: Setting instantaneous short-circuit release in the range of 600…4800A and time-delay short-circuit release in the range of 240…4000A provides comprehensive protection against various types of short circuits.
• Continuous rated current: Rated continuous current of 400A makes it an ideal choice for circuits with high loads.

This trip unit is not only a protective element – it is an investment in the stability and safety of the entire electrical installation.