Square D | KA36150CBA | Circuit Breaker | 150A | 3-Pole | 600V

Meet the Square D KA36150CBA circuit breaker—a purpose-built 150A, 3-pole device designed for 600V systems. This unit excels in maintenance, retrofit, and replacement scenarios where precise spec matching is essential, delivering dependable protection for demanding 3-phase applications.

Key specifications

• Amperage: 150A
• Poles: 3-Pole
• Voltage rating: 600V
• Brand/Series: Square D
• Part number: KA36150CBA

Why this model stands out

Designed as a direct, spec-matched replacement for compatible Square D panels, the KA36150CBA ensures a seamless fit and reliable interruption performance in 3-phase circuits. The 3-pole configuration provides balanced protection across all phases, helping to safeguard motors, feeders, and distribution equipment in commercial and industrial environments. With a 600V rating, this breaker supports higher-voltage distribution needs while maintaining consistent trip characteristics that electrical professionals rely on during maintenance and upgrades.

Ideal use cases

• Retrofits and replacements in existing Square D panel boards that require a KA36150CBA specifically.
• Protection for 3-phase feeders and motors in commercial facilities, manufacturing floors, or data centers.
• Maintenance inventories for uptime-critical electrical systems where exact compatibility matters.

Compatibility and installation notes

Before ordering, confirm fit and ratings for your panel or distribution equipment. The part number KA36150CBA is the most reliable reference for compatibility, helping you avoid mismatches and unnecessary downtime. When selecting, ensure your system operates within a 600V environment and that the surrounding panel type supports a 150A, 3-pole configuration.

What to expect in operation

With its Square D engineering, the KA36150CBA delivers dependable protection characteristics for 3-phase electrical networks. It helps isolate faults quickly and deterministically, reducing the impact of overcurrent events on downstream equipment. This makes it a practical, long-term solution for technicians seeking a trustworthy, spec-aligned retrofit or replacement option for demanding 600V systems.