Square D | NEL1236LSG | Circuit Breaker | 1200A | 3-Pole | 600V

Meet the Square D NEL1236LSG circuit breaker — a robust, high-capacity protector built for demanding three‑phase systems. With a 1200A rating and a 3‑pole configuration, this unit delivers reliable protection for heavy loads while tolerating the rigorous demands of industrial environments. Operates up to 600V, making it a practical choice for facilities that run powerful motors, presses, and large distribution panels.

Designed for maintenance, retrofit, and replacement projects where exact specifications matter, the NEL1236LSG ensures you can match existing system requirements with confidence. The part number itself is the strongest guide to compatibility, so always confirm fit and ratings before ordering. This is especially important in retrofits where panel architecture, trip characteristics, and wiring schemes must align precisely.

Specifications at a glance

• Amperage: 1200A
• Poles: 3-Pole (three-phase)
• Voltage rating: 600V
• Reference: NEL1236LSG — best compatibility reference for replacement or retrofit

Why this breaker stands out

• Direct-fit replacement for Square D panels that require NEL1236LSG specifications, helping you minimize modification and downtime.
• Three-pole design provides balanced protection across all phases, reducing the risk of unbalanced loads and motor damage.
• Consistent trip characteristics and electrical performance aligned with your existing Square D infrastructure, supporting predictable maintenance planning.

Ideal use cases

• Retrofits and uprates in industrial facilities with three‑phase equipment and high-current demands.
• Maintenance swaps where a precise spec match is essential to restore protection quickly.
• Replacement in legacy installations that require a proven, compatible Square D component.

Practical installation and maintenance tips

• Always verify fit and ratings against your panel nameplate and existing breakers before purchasing.
• Keep the exact part number (NEL1236LSG) on file for future replacements and equipment records.
• Store and handle with care to prevent mechanical damage that could affect performance during installation.