ABB T5N400CW - 400A, 3-Pole, Circuit Breaker

ABB T5N400CW — 400A, 3-Pole Circuit Breaker

The ABB T5N400CW is a rugged 400-amp, 3-pole circuit breaker designed for dependable overcurrent protection in demanding electrical environments. Built for panelboards, switchboards, and control panels, it delivers precise protection for three-phase systems where reliability and uptime matter most.

Why the 3-Pole Design Matters

• Three-pole configuration provides balanced protection across all phases in three-phase power systems, simplifying wiring and achieving coordinated tripping in motor control centers and distribution panels.
• 400A rating is purpose-built for mid-to-large workloads, allowing robust start-up performance and steady operation under peak demand without unnecessary trips.
• Compact, rugged construction suited for industrial floors, OEM installations, and commercial applications that demand long service life and predictable trips.

Key Applications

Ideal for environments where safety and continuity are critical, including:

• Industrial panelboards and switchboards feeding motors and process equipment
• Motor control centers (MCCs) and process control panels
• Commercial electrical subpanels and OEM equipment requiring reliable overload and short-circuit protection

What Sets It Apart

• Designed for high-current, three-phase protection with durable components that resist wear in demanding installations
• Clear, straightforward integration into standard distribution architectures, enabling quicker installation and easier maintenance
• Trusted ABB engineering ensures consistent performance across a range of industrial and commercial applications

Specifications at a Glance

• Current rating: 400A
• Poles: 3-Pole
• Breaker type: Circuit Breaker

Practical Guidance for Use

When integrating the ABB T5N400CW, ensure compatibility with your panel or switchboard design and observe proper installation practices for three-phase circuits. This breaker is purpose-built to provide dependable protection for distribution panels and motor control centers, helping you minimize downtime caused by overloads or short circuits. Regular inspections of terminals and wiring, along with adherence to mounting and torque guidelines, will help maintain optimal performance over time.

Who Benefits Most

Engineers, panel builders, and OEM integrators who need a robust, high-current protection solution for three-phase systems will find the ABB T5N400CW a reliable choice. It’s especially well-suited for facilities with substantial motor loads, processing lines, and distributed power requirements where consistent protection and quick fault isolation are essential.