Square D KHB36125 125A 3P 600V Circuit Breaker | AmpState

Square D KHB36125 is a 125 A, 3-pole, 600 V circuit breaker built to protect panelboards, load centers, and electrical distribution systems. Offered by AmpState, it’s the exact part-number match that maintenance teams, panel builders, and spare-inventory managers rely on when reliability and compatibility are non-negotiable.

Direct part-number match for dependable panel protection

Choosing the precise model matters. The KHB36125 delivers a proven fit for existing Square D installations, reducing the risk of incompatibility that can come from substitutes. Its three-pole design is optimized for 3-phase systems, providing synchronized disconnection across all conductors and helping protect both equipment and personnel.

• 125 A rating supports medium to heavy-load circuits common in commercial and industrial setups.
• 3-pole configuration ideal for 3-phase distribution, ensuring coordinated protection across all phases.
• 600 V maximum voltage suitable for a wide range of industrial electrical distributions.
• Direct Part Number KHB36125 ensures quick, accurate replacement without guesswork.
• AmpState availability means timely access when you’re stocking or ordering for ongoing projects.

Who benefits from the KHB36125?

This breaker is an essential component for maintenance teams overseeing panelboards and load centers, a panel builder’s reliable go-to for sizing accuracy, and a spare inventory choice that minimizes downtime during outages or upgrades. It’s especially valuable in facilities with 3-phase electrical distribution that require robust overcurrent protection at 125 A.

Use cases and scenarios

• Replacing a failed or aged breaker in existing Square D panelboards.
• Stocking a critical spare for facilities with heavy 3-phase loads to reduce downtime.
• Upgrading or retrofitting distributions where a precise 125 A, 3-pole, 600 V device is specified.
• Specifying a compliant, identical-part replacement for ongoing maintenance programs.

Installation tips and compatibility Notes

• Verify your panel labeling to ensure the 600 V rating and 3-pole configuration align with your system requirements.
• Match the breaker to the existing trip characteristics to preserve original protection profiles.
• If you’re unsure about fit, send us a message and we’ll help confirm compatibility with your panel or load center.
• Always follow proper electrical safety procedures during installation and replacement.

Specifications at a glance

• Part Number: KHB36125
• Amperage: 125 A
• Poles: 3
• Voltage: 600 V
• Type: Circuit Breaker (Square D KHB family)

Ready to secure your electrical distribution with a trusted, exact-fit solution? AmpState has the Square D KHB36125 in stock for fast delivery. If you need help confirming fit for your specific panel, message us and we’ll verify compatibility and get you what you need.