JB3125SW | Circuit Breaker | 125A | 3-Pole | 600V

The JB3125SW circuit breaker delivers reliable protection for 3‑phase power systems, built to handle demanding industrial environments. With a 125A rating and a 600V operating ceiling, this unit is designed for maintenance, retrofit, and replacement projects where exact specifications matter. When you need a precise fit for your panel or machinery, the JB3125SW stands ready to safeguard your equipment and keep operations running smoothly.

Specifications at a glance

• Amperage: 125A
• Poles: 3-Pole
• Voltage: 600V

Why this breaker matters for your industrial setup

The JB3125SW is purpose-built for three‑phase circuits, providing consistent protection in manufacturing floors, warehouses, and process environments. Its 3‑pole configuration aligns with common three‑phase distributions, ensuring balanced protection across all phases. The 125A rating is ideal for mid‑to‑large loads, helping prevent nuisance trips while safeguarding wiring and connected equipment from overloads. This is a practical choice when upgrading older systems or matching a specific replacement part with exact electrical characteristics.

Ideal use cases

• Maintenance and ongoing service of three‑phase panel boards in industrial facilities
• Retrofits where current equipment requires the same 125A, 3‑pole protection at 600V
• Replacement in legacy installations where JB3125SW is the referenced part number for compatibility

How to ensure you’re getting the right part

Before you order, verify that the JB3125SW matches your equipment’s fit and ratings. The part number is the best reference for compatibility, so cross‑check it against your panel label or manufacturer documentation to avoid mismatches in electrical characteristics or mounting configuration.