Square D | MAP36450V | Circuit Breaker | 450A | 3-Pole | 36450V

The Square D MAP36450V circuit breaker is a high‑current, three‑pole protection device designed for demanding electrical installations. Engineered for maintenance, retrofit, and replacement projects, this 450A breaker provides reliable protection for three‑phase systems operating up to 36450V.

• Amperage: 450 A
• Poles: 3-Pole
• Voltage rating: 36450 V
• Part number: MAP36450V
• Brand: Square D

Why this MAP36450V stands out

• Direct compatibility: For panels designed around Square D MAP devices, this exact MAP36450V offers a drop‑in replacement that minimizes downtime and rework.
• High‑current capability: With a 450A rating, it supports large feeders and substantial loads typical in industrial and commercial environments.
• Three‑phase protection: The 3‑pole design ensures coordinated protection across all three phases, helping maintain balanced system performance.
• OEM reference for compatibility: The MAP36450V part number is the most reliable reference when confirming fit with existing Square D installations.

Ideal use cases

• Maintenance windows in facilities where uptime is critical, such as manufacturing floors and data‑intensive operations
• Retrofit projects that upgrade aging protection devices without extensive rewiring
• Spare‑part planning for service and replacement in commercial buildings and large electrical panels

How to confirm fit and ratings before ordering

• Match the part number MAP36450V to your panel’s approved components list or owner’s manual
• Verify the amperage (450 A) and voltage rating (36450 V) align with your system specifications
• Check the panel’s labeling to ensure the MAP family is compatible with the existing mounting footprint and bus configuration

Installation and safety notes

• Always power down the system and follow lockout/tagout procedures before handling circuit breakers
• Adhere to local electrical codes and the manufacturer’s installation guidelines for connections and torque
• Store spare MAP36450V in a clean, dry environment to prevent corrosion and ensure reliable performance

Choose the MAP36450V when you need dependable, exact‑fit protection for three‑phase systems. Ideal for protecting critical loads across industrial, commercial, and data‑center environments while simplifying maintenance and retrofit work.