Square D | MHL36300V | Circuit Breaker | 300A | 3-Pole | 36300V

Unlock robust overcurrent protection for demanding electrical systems with the Square D MHL36300V circuit breaker. Engineered for maintenance, retrofit, and replacement tasks where exact specifications matter, this three-pole unit delivers reliable safeguarding for high-current applications. With a 300 A rating and a voltage capability of 36,300 V, it’s built to protect serious loads in industrial panels and power distribution setups. The part number MHL36300V serves as the most reliable reference for compatibility, so always verify fit and ratings before ordering.

• Part number: MHL36300V
• Amperage: 300 A
• Poles: 3-Pole
• Voltage: 36,300 V

Why this matters for your operation

• Exact-fit replacement: Ideal for Square D panels and systems that require the MHL36300V specification, reducing uncertainty during retrofit or refresh projects.
• Maintenance-ready: A dependable option for planned upgrades or equipment refreshes, helping minimize downtime by matching existing protection schemes.
• High-current protection in a compact footprint: Delivers solid three-pole protection for feeders and large circuits without increasing panel complexity.
• Single reference for compatibility: Rely on the MHL36300V part number to align mounting style, electrical characteristics, and replacement cycles with your existing infrastructure.
• Practical for challenging environments: Designed to perform in demanding industrial settings where dependable protection is essential for safety and uptime.

Who this is for and practical use cases

• Industrial facilities, manufacturing lines, and power distribution centers that require a 300 A, 3-Pole breaker in a high-current setup.
• Retrofits where you need an exact spec match to existing Square D panels, MCCs, or distribution gear.
• Maintenance upgrades for legacy systems that rely on precise compatibility to maintain protective coordination and electrical safety.

Pro tips for a smooth setup

• Before purchase, confirm fit by cross-referencing the exact part number (MHL36300V) with your panel labeling and the system’s voltage and current requirements.
• Plan the replacement during a scheduled outage and ensure all disconnection and lockout procedures are followed by qualified personnel.
• Keep a record of compatibility notes and the replacement date to support future maintenance and panel documentation.