ABB T5L400 3 Pole Air Circuit Breaker For Low Voltage Power Distribution In Industrial And Commercial Facilities

ABB T5L400 is a rugged 3-pole air circuit breaker engineered for reliable protection and precise control of low-voltage power distribution in demanding industrial and commercial facilities. Designed for main incoming feeders, switchboards, and critical power distribution points, this breaker delivers dependable performance where protection settings and interruption capacity matter most.

• 3-Pole architecture aligns with standard three‑phase distribution, enabling balanced protection across all live conductors.
• Air Circuit Breaker (ACB) technology provides fast, clean isolation of faults, helping reduce the impact of outages on your operations.
• Adjustable trip settings allow you to tailor protection to your specific system requirements, improving selectivity and coordination with other protection devices.
• High interruption capacity supports inrush and fault currents typical of industrial and commercial power networks, minimizing downtime and equipment damage.
• Robust ABB engineering delivers durable performance in harsh environments, making it suitable for continuous operation in industrial facilities and busy commercial spaces.
• Easy integration with standard low-voltage switchgear and panels, simplifying installation in existing or new distribution schemes.

Key specifications

• Model / Part Number: T5L400
• Poles: 3-Pole
• Breaker Type: Air Circuit Breaker

Ideal applications

Best suited for main incoming feeders, switchboards, and critical power distribution where reliable protection and adjustable trip settings are required. In large industrial facilities and commercial networks, the T5L400 helps guard essential equipment and maintain system stability during faults.

How it benefits your operation

• Enhanced protection coordination reduces the scope of outages and protects downstream equipment.
• Customizable trip settings enable precise protection schemes tailored to your network topology and load profile.
• High interruption capacity supports fault currents without compromising safety or service continuity.
• Durable construction and reliable performance translate to longer service life and reduced maintenance intervals.

Installation and best practices

For optimal performance, have a qualified electrical professional review system coordination and calibrate trip settings to match your protection plan. Regular inspection and testing of protection devices help ensure reliable operation and quick fault isolation when needed.

With ABB T5L400, you gain a dependable, field-proven solution for safeguarding low-voltage power distribution in demanding environments, delivering clear protection, straightforward integration, and peace of mind for your industrial or commercial facility.