Square D | MHL364002361 | Circuit Breaker | 400A | 3-Pole | 600V

Square D MHL364002361 Circuit Breaker is built for demanding industrial power distribution, delivering robust protection for large 3-phase systems. With a 400A rating, three-pole configuration, and a 600V operating range, this device is purpose-built for installations where reliability and precise protection are non-negotiable.

Key specifications

• Amperage: 400 A
• Poles: 3-Pole (three-phase protection)
• Voltage: 600 V

Important compatibility note: The part number MHL364002361 is the best reference for ensuring a correct fit with your panel and existing protective scheme. Always confirm the exact fit and ratings before ordering to avoid mismatches in bus configuration or trip characteristics.

Ideal use cases

• Maintenance and retrofits on legacy Square D panels that require a 400 A, three-pole, 600 V breaker
• Replacement in aging distribution equipment where exact specs are needed to restore original protection levels
• Upgrades to support higher-current 3-phase feeders in commercial or light industrial environments

Why this breaker stands out

By sticking to the exact part number and specifications, you preserve system compatibility and reduce downtime caused by mismatched protective devices. This Square D breaker delivers consistent interrupting performance for critical loads, helping protect motors, transformers, and feeders from overloads and short circuits in 3-phase networks up to 600V.

Practical installation tips

• Verify the panel’s acceptance of a 400 A, 3-pole, 600 V device before purchase.
• Match the breaker’s mounting and bus arrangement to your enclosure and bus design; the MHL364002361 reference is your best guide for compatibility.
• Label new protection settings after installation to reflect the updated current rating and trip characteristics.

Whether you’re refreshing an aging panel, performing a retrofit to align with updated safety standards, or stocking a replacement for critical infrastructure, the Square D MHL364002361 400A 3-Pole 600V circuit breaker provides reliable, spec-accurate protection when it matters most.