ABB | S6HD-4P-400A | Circuit Breaker | 400A | 3-Pole | 600V

Meet the ABB S6HD-4P-400A Circuit Breaker — a precise, dependable protection device designed for three-phase electrical systems up to 600V. With a 400A rating spread across 3 poles, this unit is engineered to safeguard distribution panels, feeders, and industrial circuits from overloads and faults, keeping equipment and personnel safe while minimizing downtime.

• Amperage: 400 A
• Poles: 3-Pole (3P)
• Voltage: 600V
• Applications: Ideal for maintenance, retrofit projects, and replacement where exact specs are required

Why choose this model? The S6HD-4P-400A is purpose-built for reliability in demanding environments. It provides robust overcurrent protection for three-phase circuits, ensuring quick isolation during faults and smooth coordination with upstream and downstream protection devices. It’s a practical choice for panel upgrades, service entrance rewiring, or refreshing aging protection hardware in commercial and light industrial settings.

Key considerations for purchase and installation:

• Fit and ratings: Confirm compatibility with your panelboard and system requirements before ordering. This model is specified by the part number, so use S6HD-4P-400A as the primary reference for matching components.
• Configuration: Three-pole design suits standard 3-phase distribution without the need for additional adapters or accessories.
• Use cases: Replacement of worn or obsolete breakers, retrofits to accommodate increased loads, or maintenance efficiency by stocking a direct-swap unit.

Ideal for electrical technicians and facilities managers who value exact specifications, quick compatibility checks, and durable performance. If your project requires a 400A, 3-Pole, 600V circuit breaker with trusted ABB engineering, the S6HD-4P-400A is engineered to deliver consistent protection and operational peace of mind.