Square D NQOD12M100CU Circuit Breaker, 100A, 240V

The Square D NQOD12M100CU Circuit Breaker is a rugged, industrial-grade main protective device designed for use with Square D NQOD Circuit Main Breaker Panelboards. Built to stand up to demanding service environments, this 100 A, 240 V breaker is engineered to reliably interrupt fault currents and protect your electrical system during maintenance, upgrades, or new installations.

Designed to be paired with the NQOD series panelboards, this part number—NQOD12M100CU—serves as a precise fit for compatibility-critical projects. When you’re replacing a failed main breaker or planning a panelboard upgrade, ensuring the exact part number matches your application helps prevent compatibility issues and downtime.

Key benefits and use cases

• Reliable main protection: 100 A rating delivers robust overcurrent protection for industrial or commercial circuits fed through NQOD panelboards.
• Stable 240-volt operation: Suited for typical industrial electrical distributions where 240 V systems are standard.
• NQOD compatibility: Specifically engineered to integrate with Square D Circuit Main Breaker Panelboards in the NQOD family, reducing installation guesswork and ensuring proper fit.
• Replacement and maintenance ready: A practical choice for service calls, part replacements, or OEM-aligned panel upgrades—designed to minimize downtime with a straightforward fit to the intended panel.
• Clear part verification: Use the exact part number NQOD12M100CU to confirm compatibility with your application and panelboard drawings before purchase.

Why choose this breaker for your project

Choosing the NQOD12M100CU means opting for a device that aligns with Square D’s NQOD panelboard ecosystem, helping you maintain electrical system continuity and standardization across installations. By sticking to the authorized part number for your panel, you reduce the risk of misfit components and ensure consistent trip characteristics and electrical performance within your main protection scheme.

Notes for procurement and installation

Verify fit by part number and application requirements before ordering. If you’re unsure about compatibility, send us a message with your panel model, panel year, and any relevant documentation, and we’ll help confirm the right fit for your industrial service, maintenance, or replacement project.

Product details at a glance:

• Brand: Square D
• Series: Circuit Main Breaker Panelboard NQOD
• Part Number: NQOD12M100CU
• Type: Circuit Breaker (main)
• Amperage: 100 A
• Voltage: 240 V