Westinghouse | KL3400 | Circuit Breaker | 400A | 3-Pole | 600V | Bolt-On

The Westinghouse KL3400 Circuit Breaker delivers reliable protection for heavy-duty electrical distributions with a 400A, 3-pole setup rated at 600V. Designed for maintenance, retrofit, and replacement projects, this bolt-on breaker offers a straightforward path to upgrade or refresh aging panels without extensive rewiring.

Key specifications

• Amperage: 400A
• Poles: 3-Pole
• Voltage: 600V
• Mounting: Bolt-On

Why it matters

• Three-pole design supports robust three-phase distribution, ideal for industrial and commercial applications requiring reliable power switching.
• Bolt-On mounting provides a secure, field-service-friendly installation that minimizes panel modifications during retrofit or replacement.
• Part-number clarity: the KL3400 is the go-to reference for compatibility—use this to confirm a correct fit before ordering.

Ideal use cases

Use the Westinghouse KL3400 in panelboards and switchgear that require a 400A, 3-Pole, 600V bolt-on circuit breaker. It’s well suited for:

• Maintenance of aging distribution panels where exact KL3400 specs match the existing setup.
• Retrofits that upgrade circuit protection without reconfiguring buswork.
• Replacement of failing breakers in compatible Westinghouse or similar panels that accept KL3400 form factor.

Installation and compatibility tips

• Always confirm fit and ratings against your panel labeling before ordering. Use the part number KL3400 as the primary reference for compatibility.
• Follow standard electrical safety procedures during replacement or retrofit, and ensure the panel is de-energized during installation.

What to expect in practice

With the Westinghouse KL3400, technicians can perform efficient, field-ready replacements that restore reliable protection for critical equipment. The bolt-on design minimizes downtime and supports straightforward maintenance cycles, keeping industrial operations on track.