Westinghouse | JB3125W | Circuit Breaker | 125A | 3-Pole | 600V | Bolt-On

Introducing the Westinghouse JB3125W circuit breaker — a 125A, 3-pole, 600V bolt-on protection device designed for maintenance, retrofit, and replacement projects where precise specifications matter. Built to handle demanding industrial and commercial environments, this breaker safeguards your equipment and keeps critical systems running smoothly.

Key specifications

• Amperage: 125 A
• Poles: 3-Pole
• Voltage rating: 600 V
• Mounting: Bolt-On
• Part number: JB3125W

Why this bolt-on circuit breaker matters

• Secure mounting — the bolt-on design provides a durable, vibration-resistant connection in compatible panels, helping maintain consistent protection.
• Clear compatibility reference — the JB3125W part number is the most reliable guide when matching to existing gear, ensuring you get the right fit the first time.
• Focused on 3-phase protection — ideal for three-phase electrical systems that demand dependable, branch-circuit protection at 125 A.

Ideal use cases

• Retrofit projects where upgrading to 125A, 3-pole protection is needed in existing panels.
• Replacement for aging or failed breakers in 3-phase distribution systems.
• New installations requiring robust 3-phase protection with a 600V rating.

Installation & compatibility notes

Notes: Confirm fit and ratings before ordering. The JB3125W part number is the best reference for compatibility, so verify this exact model against your panel catalog and service requirements before purchase.

With the Westinghouse lineage of dependable electrical components, the JB3125W delivers straightforward, reliable protection for your 3-phase loads, helping your facility stay productive and safe.