ABB T5N 400 1SDA054437R1

ABB T5N 400 | 3-Pole MCCB | 400A | Thermal-Magnetic | IEC 60947-2

Overview

The ABB T5N 400 is a molded case circuit breaker (MCCB) from the TMAX XT series, designed for medium to high power distribution systems. Rated for 400A and equipped with a thermal-magnetic trip unit, it provides effective protection against overloads and short circuits. This 3-pole breaker is fixed-mounted and compliant with IEC 60947-2 standards, ensuring safe and dependable operation in industrial and commercial applications.

Key Features

• Rated Current: 400A

• Poles: 3

• Trip Unit: Thermal-magnetic (TMD)

• Mounting: Fixed

• Standards: IEC 60947-2

• Rated Insulation Voltage: 1000V

• Rated Impulse Withstand Voltage (Uimp): 8kV

• Interrupting Capacity: Up to 50kA at 415V AC (model-specific)

• Terminal Options: Front connections with accessory compatibility

• Manual Toggle Operation: ON/OFF with visual indication

• Compact Frame: Efficient use of panel space

Technical Specifications

• Catalog Number: T5N 400

• Frame Size: T5

• Frequency: 50/60 Hz

• Mechanical Life: Up to 10,000 operations

• Electrical Life: Up to 2,000 operations at full load

• Operating Temperature: -25°C to +70°C

• Degree of Protection: IP20 (with terminal covers)

• Compliance: IEC 60947-2, CE marked

• Approx. Weight: 4.5 kg

• Country of Origin: Italy

Applications

• Distribution Panels

• Commercial Buildings

• Industrial Switchboards

• HVAC and Motor Control Systems

• Backup and Generator Protection

Why Choose the ABB T5N 400?

• Reliable 400A Protection: Suited for mid-range power applications

• IEC Certified: Meets global safety and performance standards

• Easy Integration: Fixed-mount with accessory support

• Long Service Life: Mechanical and electrical endurance

• Trusted Brand: Part of ABB’s renowned TMAX XT family

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