Square D KAL36125 - 125 A, 600 V, 3-Pole Circuit Breaker | AmpState

Meet the Square D KAL36125 — a 125 A, 600 V, 3-pole molded-case circuit breaker built to safeguard panelboards and load centers against overloads and short circuits. This compact, reliable device is designed for fast, dependable protection of branch circuits in residential, commercial, and light industrial environments.

• Compact molded-case design: Maximizes panel space and makes it easier to fit into tight panel configurations without compromising protection.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection by sensing both overloads (thermal) and short circuits (magnetic), reducing nuisance trips and ensuring fast response when it matters most.
• 125 A, 600 V, 3-pole: Suitable for three-phase feeders and larger branch circuits, providing robust protection for motors, HVAC, lighting, and power distribution in small to mid-size installations.
• OEM-compatible: Specifically designed to be used with matching Square D load centers and panelboards, ensuring dependable fit and electrical coordination.
• Versatile across sectors: Ideal for residential subpanels, commercial offices, and light industrial equipment where reliable protection and space efficiency are key.

Key specifications

• Manufacturer: Square D (Schneider Electric)
• Part number: KAL36125
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 125 A
• Voltage rating: 600 V
• Number of poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Practical use and installation notes

• Use as a direct replacement or upgrade in compatible Square D panels to protect feeders feeding motors, HVAC equipment, and other critical loads.
• Install in panels designed for molded-case breakers of the same family to maintain proper electrical coordination and protection continuity.
• Pair with commonly used branch circuits in commercial spaces or home infrastructures where three-phase distribution is required or 3-pole protection is needed.