Square D | MHL3630025DC1679 | Circuit Breaker | 300A | 3-Pole | 600V

Meet the Square D MHL3630025DC1679 Circuit Breaker — a purpose-built protection device engineered for demanding three-phase systems. With a 300A interrupt rating, a 3-pole configuration, and a 600V rating, this breaker is crafted for maintenance, retrofit, and replacement projects where exact specifications matter.

Key specifications at a glance

• Amperage: 300A
• Poles: 3-Pole
• Voltage rating: 600V
• Part reference: MHL3630025DC1679

Why choose this Square D breaker

• precise compatibility: The part number MHL3630025DC1679 is the best reference for matching Square D specifications in your panel or distribution setup.
• Designed for three-phase protection: The 3-Pole configuration provides balanced protection across all three phases, helping prevent uneven loading and equipment damage.
• 600V capacity for industrial and commercial use: Suitable for systems requiring higher voltage protection, aligning with many lighting, motor, and process applications.
• Retrofit-ready option: Ideal for replacing aging breakers or upgrading panels where a 300A, 3P, 600V spec is required without overhauling the entire distribution.

Ideal use cases

• Maintenance and service upgrades in existing electrical rooms where exact Square D specifications are mandatory.
• Retrofit projects that replace older protective devices with a modern, properly rated 3P, 600V solution.
• New installations within panelboards and distribution boards that require a 300A breaker to safely protect large feeders and motor loads.

Compatibility and ordering tips

Before ordering, confirm fit and ratings to ensure seamless replacement. The part number MHL3630025DC1679 is the most reliable reference for compatibility, helping you avoid mismatches in trip characteristics or mounting geometry. If you’re upgrading or matching a replacement, double-check that your panel’s labeling and bus bar configuration align with this 3-Pole, 600V device.

For electricians and facility managers, this Square D breaker offers a straightforward path to robust protection, precise matching, and dependable performance in three-phase power environments. If you need a dependable, specification-aligned 300A, 3-Pole, 600V circuit breaker, the MHL3630025DC1679 is a clear, compatible choice for maintenance, retrofit, and replacement projects.