MOULDED-CASE CIRCUIT-BREAKER NSX400S FRAME 100KA 4P 400A

The ComPacT NSX range covers a wide selection of high-performance compact circuit breakers (MCCBs) in two frame sizes up to 630 A. Modular and easily configurable breakers are designed to meet various needs, from thermal-magnetic protective relays to extended protection and monitoring features with MicroLogic protective relays.

Defining and selecting the breaker is easy using the Finnish online product selectors on www.se.com/fi.

The new generation of ComPacT NSX breakers offers an updated appearance along with innovative and versatile solutions for all electrical distribution applications.

Benefits of the ComPacT NSX breaker:

Configurability:

• Reliable, safe, and easy connection of the protective relay to the breaker frame using torque screws enables simple and adaptable installation.
• Accessories for installation, control, monitoring, and operation can be easily installed during initial setup, or you can later modify the breaker’s functions according to your needs.

Efficiency:

• The cover is partially transparent, enabling quick identification of accessories installed on the breaker.
• Get documentation related to the breaker easily on your smartphone via the QR code on the front of the breaker.
• Integrated earth leakage protection (MicroLogic Vigi relay), spring-connected electrical accessories, and standardized accessories optimize installation space and time, making selection and installation effortless.

Reliability:

• Roto-active™ breaker technology improves selectivity of the electrical system and enables optimization of device selection with combined short-circuit protection.

Connectivity:

• Depending on the selected protective relay and monitoring, control, and communication options, you can easily implement remote monitoring of the electrical distribution system with ComPacT NSX breakers.
• The new wireless auxiliary and alarm contact enables transmission of trip and predictive alarm information for local communication and remote management. This enhances predictive maintenance and energy efficiency.

Features:

Two frame sizes:

• 100 / 160 / 250 A
• 400 / 630 A

Breaking capacities:

• 25, 36, 50, 70, 100, 150 or 200 kA / 400 V
• 45, 75 or 100 kA / 690 V

Number of poles: 3 and 4

Protective relays:

• Thermal-magnetic TM-D relay, LI protection
• Electronic MicroLogic 2.2 / 2.3 relay; LSoI protection
• Electronic MicroLogic 5.2 / 5.3 E relay with display; LSI protection and energy measurement
• Electronic MicroLogic Vigi relay with integrated earth leakage protection/monitoring (30 mA – 10 A); LSoIR or LSIR protection and energy measurement
• Protective relays for motor outputs
• Protective relays for generator applications

Optimized range of electrical accessories and mounting components

Installation:

• Fixed, withdrawable, or抽出式 breaker

Most common accessories:

• Handle with shaft, auxiliary and alarm contact, trip coils, motor operator, busbar connections, cable lugs, phase distributors with touch protection, earth leakage protection module...

This product description is an automated translation of the original Finnish description.