Schneider Electric | MJA36300YP | Circuit Breaker | 300A | 3-Pole | 600V

Schneider Electric MJA36300YP is a purpose-built circuit breaker designed for dependable protection in three-phase electrical systems. Engineered for maintenance, retrofit, and replacement projects, this 300A, 3-pole unit delivers precise performance in demanding environments where exact specifications matter.

Key specifications

• Amperage: 300 A
• Poles: 3-Pole (three-phase)
• Voltage rating: 600 V
• Part number: MJA36300YP
• Application: suitable for retrofit, maintenance, and replacement when matching specs are required

Why select the MJA36300YP for your panel

• Exact compatibility: The MJA36300YP part number serves as the best reference for matching fit and ratings, helping you minimize downtime and avoid mismatched components.
• Three-phase protection: With a 3-pole design, this breaker is suited for distributing and safeguarding three-phase circuits in commercial or industrial panels.
• Clear voltage and current rating: A 300 A capacity paired with a 600 V rating provides reliable interruption capability for appropriate load profiles while preserving panel coordination.

Ideal use cases

• Panel maintenance: replace aging or failed breakers with an exact-spec unit to restore original protection levels.
• Retrofit projects: upgrade or reconfigure existing systems while preserving electrical characteristics and compatibility.
• Replacement in OEM-configured setups: maintain consistent protection profiles by matching the original part number and ratings.

Practical guidance for ordering

Before purchasing, confirm the fit and ratings align with your current panel requirements. The MJA36300YP part number is the most reliable reference to ensure seamless compatibility and consistent performance across your distribution system.