ABB T5H400E5W Circuit Breaker, 400A, 3-Pole, 600V

The ABB T5H400E5W is a rugged, industrial-grade circuit breaker engineered to protect your three-phase power networks with precision. Ideal for service, maintenance, and replacement projects, this 400 A, 3-pole device delivers reliable protection for demanding industrial environments operating up to 600 V.

Specifications at a glance

• Manufacturer: ABB
• Part number: T5H400E5W
• Product type: Circuit Breaker
• Amperage: 400 A
• Poles: 3
• Voltage: 600 V

What sets the T5H400E5W apart

• Three-pole protection designed for balanced three-phase systems, helping to prevent uneven loading and fault propagation across phases.
• High-current capability with a 400 A rating, making it suitable for main feeders, equipment isolation, and critical industrial circuits.
• ABB reliability and engineering behind a part-number-specific solution, ensuring a precise fit for compatible panels and enclosures.
• Clear compatibility path: verify fit by part number and application requirements to avoid mismatches in replacement projects.

Ideal use scenarios

• Replacement or upgrade of aging breakers in manufacturing lines and distribution panels.
• Protection for motor feeders and downstream equipment in industrial facilities.
• Main service disconnects in heavy-duty electrical installations that require robust three-phase protection.
• Spare-part readiness for planned maintenance in plants with ABB infrastructure.

How to ensure a proper fit

• Confirm that your application requires a 600 V, 3-pole device with a 400 A rating and that the panel or enclosure supports the T5H family.
• Use the part number T5H400E5W as the key reference when checking compatibility with your equipment, schematics, and installation manuals.
• If there’s any doubt about fitment, reach out for expert guidance to verify compatibility with your specific application requirements.

Need help matching a part number or confirming compatibility? Message us and we’ll help.