Square D | NE1236LSG | Circuit Breaker | 1200A | 3-Pole | 600V

Square D NE1236LSG is a robust 3-pole circuit breaker, rated for 1200A at 600V, crafted to protect demanding electrical systems in industrial and commercial environments. Designed with maintenance, retrofit, and replacement in mind, this unit delivers dependable protection when exact specifications are required.

Key specifications at a glance

• Amperage: 1200A
• Poles: 3-Pole
• Voltage: 600V

Why this model matters

Choosing a breaker by the exact part number matters for reliability and compatibility. The NE1236LSG’s precise reference simplifies matching with existing panels and systems, reducing the risk of fitment issues during maintenance or upgrades. Its three-pole configuration makes it well-suited for three-phase distribution, helping to safeguard motors, drives, and other heavy equipment from overloads.

Ideal use cases

• Maintenance work on legacy or upgraded three-phase panels
• Retrofit projects where current specs must align with installed infrastructure
• Replacement scenarios to restore reliable protection after a fault
• Industrial power distribution in manufacturing facilities, warehouses, and large commercial spaces

How to ensure a proper fit

Before ordering, confirm fit and ratings against your existing panel or switchgear. The part number NE1236LSG is the best reference for compatibility. If your system requires a 3-pole, 600V breaker with a 1200A rating, this model is the appropriate choice.

Practical guidance for installation and beyond

• Inspect the panel labeling to verify compatibility with Square D components and 3-Phase 600V service
• Ensure power is isolated and follow all safety protocols during replacement or retrofitting
• Keep the exact part number on hand for future maintenance or part sourcing
• Store spare units in a clean, dry environment to preserve performance readiness

Whether you’re performing routine maintenance, upgrading an older installation, or replacing a failed breaker, the Square D NE1236LSG delivers the required specifications and trusted performance you expect from a premier electrical protection solution.