MOULDED-CASE CIRCUIT-BREAKER NSX250B FRAME 25KA 4P 250A

ComPacT NSX offers a complete range of high-performance compact circuit breakers (MCCB) in two frame sizes up to 630 A. Modular and easily customizable breakers are designed to meet your needs, from thermal-magnetic protective relays to MicroLogic protective relays equipped with extended protection and monitoring features. Defining and selecting the breaker is easy thanks to updated Finnish online product selectors available at www.se.com/fi. The new generation of ComPacT NSX breakers provides an updated appearance along with innovative and versatile solutions for all electrical distribution applications. Benefits of the ComPacT NSX breaker: Customizability:

• 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 are easy to install during initial setup or can be later modified to suit your needs.

Efficiency:

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

Reliability:

• Roto-active™ breaker technology enhances the 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, remote monitoring of the electrical distribution system can be easily implemented 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 installation components Installation:

• Fixed, withdrawable, or抽出式 breaker

Most common accessories:

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

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