XM433500 | Circuit Breaker | 500A | 3-Pole | 480V | 100kA | Bolt-On

XM433500 is a robust industrial circuit breaker designed for 480V three-phase systems, delivering 500A of continuous current with a 100kA interrupt capacity. Built for maintenance, retrofit, and replacement projects, this bolt-on model provides secure field installation and reliable protection for switchgear, motor control centers, and service panels in demanding industrial environments.

Key Specifications

• Amperage: 500A
• Poles: 3-Pole
• Voltage: 480V
• Interrupt Capacity: 100kA
• Mounting: Bolt-On

Why choose XM433500 for your system

• High fault protection for demanding facilities: With a 100kA interrupt rating, this breaker is engineered to safely clear large fault currents that can occur in heavy industry, protecting downstream equipment and reducing downtime risk.
• Secure, field-friendly bolt-on mounting: The bolt-on design simplifies installation and field service, making it ideal for retrofits and replacements where space and mounting compatibility matter.
• Three-pole coverage for balanced protection: The 3-pole configuration ensures synchronized interruption across all three phases, safeguarding motors, drives, and other three-phase loads.
• Specialized for 480V environments: Optimized for standard industrial distribution, control panels, switchgear, and MCCs operating at 480V, delivering reliable protection where it’s most needed.
• Clear reference for compatibility: The part number XM433500 is the best reference for matching the exact specifications and mounting footprint in your existing assemblies.

Ideal applications

Use XM433500 for:

• Maintenance and service of aging industrial panels and switchgear
• Retrofit projects where a precise 500A, 3-pole, 480V bolt-on breaker is required
• Replacement of failed breakers in manufacturing lines, processing plants, and large commercial facilities

Compatibility and installation tips

Before ordering, confirm fit and ratings: the XM433500 is designed to match specific enclosure footprints and bus configurations. The part number is the most reliable reference for compatibility, so verify it against your panel schedule or OEM documentation. When installing, follow standard bolt-on procedures and adhere to panel manufacturer torque specifications and applicable electrical codes. Ensure wiring gauges and terminals are rated for 500A service and that protective devices upstream and downstream are appropriately coordinated with this breaker’s 100kA interrupt capacity.

Practical guidance for long-term reliability

• Store and transport the breaker in a clean, dry environment to prevent corrosion or contamination of contact surfaces.
• During replacement, isolate the circuit, verify zero voltage, and use appropriate PPE and lockout/tagout protocols.
• Periodically inspect mounting hardware and electrical connections for signs of loosening or wear, and replace any damaged components promptly.