Square D | MHL3645031DC2351 | Circuit Breaker | 450A | 3-Pole | 600V

Square D MHL3645031DC2351 Circuit Breaker is a rugged molded‑case protective device designed for demanding electrical installations. With a 450A rating, a 3‑pole configuration, and a 600V rating, it delivers reliable overcurrent protection for three‑phase power distribution in industrial and commercial settings. This unit is ideal for maintenance, retrofit, and replacement projects where exact specifications matter.

• Amperage: 450A
• Poles: 3‑Pole
• Voltage: 600V
• Reference: Part number MHL3645031DC2351 is the best compatibility reference

Why this model stands out for replacement and retrofit tasks:

• Exact form‑fit and electrical characteristics for legacy Square D panels, minimizing retrofit work and downtime
• Reliable protection for large loads in three‑phase systems, helping prevent equipment damage from faults
• Designed for retrofit and replacement projects where a like‑for‑like part is required

Ideal applications

• Industrial facilities with 600V three‑phase distribution networks
• Panel upgrades and maintenance in manufacturing lines, processing plants, and heavy machinery rooms
• Retrofits where a direct part‑number match is essential to avoid mismatches in bus stabs and mounting

Fit, verify, and order with confidence

• Always confirm fit and ratings against your equipment label and existing panel data plate before ordering
• The part number MHL3645031DC2351 serves as the most reliable compatibility reference
• Use in systems that require a 600V, 450A, 3‑pole protective device to ensure consistent protection

Designed to support reliable, long‑term protection of heavy electrical loads, this Square D circuit breaker helps you maintain uptime and safety in demanding environments. If you’re matching a legacy MHL‑series device, this 450A/600V, 3‑pole unit is a precise, dependable choice that aligns with your installation requirements.