Schneider Electric M9F42320 20A 3P Circuit Breaker | AmpState

Introducing the Schneider Electric M9F42320, a 20 A, three-pole circuit breaker designed to deliver reliable protection in panelboards, load centers, and electrical distribution. Available from AmpState, this part offers a precise, direct part-number match that minimizes downtime and installation guesswork for maintenance teams and panel builders alike.

Direct-fit protection for Schneider Electric panelboards and load centers

Schneider Electric M9F42320 is a purpose-built solution for protecting distribution circuits in compatible systems. The 3P design provides balanced, three-phase protection, while the 20-amp rating ensures circuits stay within safe operating limits. Rely on OEM-grade performance to safeguard downstream equipment and maintain uptime in busy facilities.

• Direct part-number match: M9F42320 ensures fast, error-free replacements without adapters or modifications.
• Three-pole design for comprehensive three-phase protection in suitable installations.
• 20-amp rating provides controlled current to protect circuits from overloads while supporting typical commercial and light industrial loads.
• Specifically suited for panelboards, load centers, and general electrical distribution tasks.
• Availability from AmpState supports reliable stocking for maintenance and retrofit projects.

Why this M9F42320 stands out

What sets this breaker apart is its OEM-grade compatibility with Schneider Electric equipment, reducing the risk of mismatched components that can lead to nuisance trips or downtime. By choosing a direct-match part, you simplify procurement, streamline maintenance workflows, and maintain consistent protection across your distribution network.

Practical uses and scenarios

• Maintenance and service: swap in a known, direct-fit part during routine checks to keep panels performing as intended.
• Panel build and retrofit: stock this 3P breaker for three-phase installations where Schneider Electric hardware is standard.
• Spare-inventory strategy: maintain ready-to-install components to minimize downtime in critical facilities.

Compatibility and support

If you’re unsure about fit, AmpState specialists can help confirm compatibility and ensure this part integrates smoothly with your existing Schneider Electric hardware. Message us to verify the match against your panelboard or load center configuration.

Add the Schneider Electric M9F42320 to your cart today to reinforce reliable, OEM-grade protection across your electrical distribution network.