Square D | NEF361200LSG | Circuit Breaker | 1200A | 3-Pole | 600V

The Square D NEF361200LSG is a 1200A, 3-pole circuit breaker rated for 600V, engineered for demanding industrial electrical environments. Designed for maintenance, retrofit, and replacement projects where exact specifications matter, this breaker delivers reliable protection when you need it most. The part number NEF361200LSG serves as your best reference for compatibility, so you can move quickly without guesswork.

Key specifications

• Amperage: 1200A
• Poles: 3-Pole
• Voltage rating: 600V
• Part reference: NEF361200LSG

What makes this breaker stand out

• Proven Square D reliability: Built to withstand the rigors of industrial panels, offering consistent performance over the long term.
• High-current capability: 1200A capacity supports heavy loads and large equipment without compromising protection.
• Three-pole protection: Simultaneous, coordinated interruption across all three phases for balanced, safe shutdowns.
• Clear compatibility reference: Using the NEF361200LSG part number simplifies ordering and ensures you’re aligning with the correct specifications.
• 600V rating: Suitable for industrial environments where higher voltage protection is required.

Ideal use cases

• Maintenance on large industrial distribution panels where a 1200A, 3-pole, 600V breaker matches the existing setup.
• Retrofits that upgrade power protection to handle higher loads or replace aging components with a compatible, high-capacity device.
• Replacement scenarios in facilities with standardized Square D components, simplifying inventory and future servicing.

Fit, compatibility & ordering tips

Important: Confirm fit and ratings before ordering. The NEF361200LSG part number is the most reliable reference to ensure you’re selecting a breaker that matches your panel and system requirements. When planning a retrofit or replacement, compare current panel specifications and bus connection requirements to avoid mismatches.

How to install and use

• Engage a qualified electrician to perform installation and testing, ensuring all procedures follow local electrical codes.
• Before energizing, verify the panel is rated for 600V and can accommodate a 1200A, 3-pole device.
• Keep a small inventory of compatible Square D parts to streamline future maintenance and replacements.

With its robust design, high-current capacity, and precise compatibility reference, the Square D NEF361200LSG is built to protect demanding electrical systems while simplifying maintenance planning and future upgrades.