Square D KAR36125 125A 3-Pole 600 V Circuit Breaker

The Square D KAR36125 125A 3-Pole 600 V Circuit Breaker is a genuine protection device built for demanding 3‑phase electrical systems. With a 125-amp rating and three-pole configuration, this breaker is designed to interrupt fault currents swiftly and safely, helping protect both equipment and personnel in industrial environments.

• Part Number: KAR36125
• Current rating: 125 A
• Poles: 3
• Voltage rating: 600 V
• Configuration: 3-pole for 3-phase circuits

Overview and benefits

As a trusted Square D component, the KAR36125 delivers dependable protection for 3-phase feeders and downstream equipment operating up to 600 V. Its robust design supports consistent performance under demanding loads, helping minimize unplanned outages and electrical downtime. Choosing a genuine Square D part also means you benefit from proven compatibility with Square D panels and accessories, straightforward replacement, and predictable trip behavior that electricians rely on for maintenance planning.

Ideal applications

• Protection for 3-phase feeders in industrial control panels and switchgear
• Motor control centers and equipment rooms where 3-phase protection is required
• Service equipment and branch circuits in commercial or light industrial environments operating at up to 600 V

Installation and compatibility

The KAR36125 is designed for use in Square D-compatible installations. Before installation, verify panel compatibility and ensure correct mounting, wiring, and terminal torque per relevant safety standards. Using a genuine part like KAR36125 helps maintain electrical system integrity and simplifies future replacements or maintenance audits.

Care, handling, and practical tips

Handle with care to avoid physical damage to the breaker housing and trip mechanism. Store spare units in a clean, dry environment and label installations clearly to support routine inspections. For best results, match the breaker to the panel’s listed frame size and confirm that your system’s voltage and current ratings align with the KAR36125 specifications.