Square D | KAL36125 | Circuit Breaker | 125A | 3-Pole | Bolt-On

Introducing the Square D KAL36125 circuit breaker — a 125A, 3-pole bolt-on unit built for reliable performance in retrofit, maintenance, and replacement projects. Identified by its exact part number, this breaker is designed to align with compatible Square D panels, helping you avoid mismatches and downtime when upgrading or repairing critical electrical systems.

• Amperage: 125A
• Poles: 3-Pole (three-phase configuration)
• Mounting: Bolt-On installation for secure attachment to compatible panels
• Compatibility reference: Part number KAL36125 as the best guide for matching equipment
• Application: Ideal for maintenance, retrofit, and replacement where exact specs are required

Why this Square D breaker stands out

Unlike generic substitutes, the KAL36125 delivers a precise fit for systems that specify this part number. The bolt-on design enhances contact stability under load, supporting dependable trip performance in demanding electrical environments and reducing the risk of loose connections over time.

Use cases and ideal setups

• Upgrading panels that require a 125A, 3-pole bolt-on breaker to support a 3-phase feeder or large branch circuit
• Replacing a failed 3-pole breaker in a legacy Square D installation where compatibility hinges on the KAL36125 specification
• Retrofit projects where the part number is the primary compatibility reference

Practical tips for a smooth purchase and installation

• Always confirm fit and ratings before ordering; rely on the KAL36125 part number as the compatibility reference
• Check your panel documentation to verify bolt-on mounting is supported and that 125A, 3-pole breakers are permitted
• Power down the main, verify no voltage at terminals, and follow lockout/tagout procedures before starting work
• Follow the panel’s torque specifications for mounting bolts to ensure secure seating without over-tightening