Square D | KH36090-BLACK | Circuit Breaker | 90A | 3-Pole | 600V

Meet the Square D KH36090-BLACK, a purpose-built circuit breaker engineered for reliability in demanding electrical environments. With a 90A rating and a 3-pole design, this unit provides coordinated protection across three hot conductors, making it ideal for 3-phase systems up to 600V. Built by Square D, it embodies the trusted performance you need for critical power distribution, motor controls, and commercial/industrial panels.

Key Specifications

• Amperage: 90 A
• Poles: 3-Pole
• Voltage: 600 V
• Brand: Square D
• Part Number: KH36090-BLACK

What this means for your system

The 3-pole configuration ensures simultaneous interruption of all three phase conductors, delivering consistent protection for three-phase circuits. The 90A capacity accommodates moderate load scenarios, while the 600V rating aligns with typical commercial and industrial power distribution standards. Using the KH36090-BLACK helps preserve panel integrity, reduce downtime, and enhance safety during fault events.

Ideal use cases

• Maintenance and service upgrades in existing Square D panels
• Retrofit projects requiring exact spec matching for seamless replacement
• Replacement of worn or failed breakers in compatible 3-phase, 600V systems

Why choose KH36090-BLACK

• Best reference for compatibility is the part number KH36090-BLACK—use it to confirm fitment against your panel catalog
• Consistent Square D protection with proven trip reliability
• Clear, specification-driven selection for maintenance planning and inventory management

Important note: confirm the exact fit and ratings for your panel before ordering. The KH36090-BLACK is designed to match specific Square D configurations, and using the correct part number ensures you receive a compatible, safe, and effective solution for your 3-phase, 600V electrical system.