HJL432450 | Circuit Breaker | 450A | 3-Pole | 480V

Meet the HJL432450 circuit breaker—a robust 450A, 3-pole protection device designed for demanding industrial environments. Built to support maintenance, retrofit, and replacement projects, this breaker helps keep critical feeders and equipment safe while minimizing downtime.

Designed for three‑phase distribution at 480V, the HJL432450 delivers dependable interruption and coordinated protection across all phases. Its three-pole configuration ensures balanced tripping and reliable isolation, making it a solid choice for panelboards, switchgear, and MCCs that demand precise, code-compliant performance.

Key Specifications

• Amperage: 450 A
• Poles: 3-Pole
• Voltage: 480 V

Why this model matters for your system

• Accurate compatibility reference: The part number HJL432450 is the best identifier for matching the exact breaker to your equipment. This reduces the guesswork during maintenance or retrofits.
• Three-phase protection: The 3-pole design ensures simultaneous interruption across all phases, protecting downstream equipment and improving arc-flash safety and system reliability.
• Targeted for retrofit and replacement: Ideal when upgrading or replacing aging breakers in industrial panels, switchgear, or distribution boards that require a 450A, 480V solution.

Ideal use cases

• Maintenance: Servicing service panels and switchgear without compromising uptime or protection integrity.
• Retrofit: Upgrading legacy protection to modern, standardized 450A, 480V three-phase protection.
• Replacement: Substituting failed or obsolete breakers in 3‑phase distribution systems across manufacturing, data centers, and facilities with 480V infrastructure.

Installation and compatibility tips

• Before ordering, confirm fit and ratings against your equipment catalog and panel designation. The part number is the most reliable reference for compatibility.
• Verify system voltage (480V) and the 450A load requirements align with your load profile and upstream protection coordination.
• Cross-check enclosure clearance, mounting arrangement, and any auxiliary accessories required for seamless integration into existing gear.

For reliable, industry-grade protection that aligns with specific 3-phase 480V systems, the HJL432450 circuit breaker offers precise compatibility, clear protection boundaries, and a clear path for maintenance, retrofit, or replacement projects. Ensure you verify fit and ratings with your system specifications to keep electrical infrastructure safe and efficient.