Square D | NEF361200LI | Circuit Breaker | 1200A | 3-Pole | 600V

The Square D NEF361200LI circuit breaker delivers dependable protection for demanding electrical setups. Designed for maintenance, retrofit, and replacement projects where exact specifications matter, this 1200A, 3-pole device is built to integrate with 600V systems you rely on every day.

Specifications

• Amperage: 1200A
• Poles: 3-Pole
• Voltage: 600V
• Reference: Part number NEF361200LI

What makes this breaker stand out

• High-capacity, three-phase protection: The 3-pole configuration supports three-phase power distribution, essential for balanced protection across industrial loads.
• Specifically matched 600V systems: Ideal for commercial and industrial panels that operate at up to 600 volts, helping ensure compatibility with existing infrastructure.
• Clear compatibility reference: The part number NEF361200LI provides the most reliable way to confirm fit with your equipment, reducing guesswork during replacements or upgrades.
• Focused for heavy-duty applications: Built to handle high-current environments where robust, durable protection is critical for safety and uptime.

Ideal use cases

This breaker is well-suited for three-phase electrical systems in commercial or industrial panels, particularly when a 600V rating and a 1200A capacity are required. It's a strong choice for:

• Maintenance projects where existing specs must be matched precisely
• Retrofits to upgrade legacy panels that demand higher current protection
• Replacement of aging or failed 3-pole breakers in critical energy circuits

Compatibility & ordering guidance

Important: Confirm fit and ratings before ordering. The NEF361200LI part number is the best reference to ensure compatibility with your panel and load requirements. If you’re unsure about fit, review your panel labeling and backup documentation to verify voltage, current rating, and pole configuration align with this unit.

Installation and safety notes

For best results, have a licensed electrician perform installation and commissioning. Verify that your enclosure and bus assemblies support a 3-pole, 600V configuration and that wiring methods comply with local electrical codes. After installation, inspect for secure mounting, proper conductor termination, and any signs of wear or damage in adjacent components to minimize the risk of nuisance trips or unsafe operation.

Whether you’re performing routine maintenance, retrofitting an older panel, or replacing a failed breaker, the Square D NEF361200LI provides a reliable, spec-consistent solution designed to keep your power distribution running smoothly.