Square D Q12125 - 125A, 240VAC, 2-Pole, Molded Case Circuit Breaker

Meet the Square D Q12125 — a dependable 125A, 240VAC, 2-Pole Molded Case Circuit Breaker designed for demanding electrical distribution. Built to protect equipment and people, this breaker provides reliable overcurrent protection in industrial, commercial, and OEM applications, especially where safe operation in panelboards, switchboards, and control panels is critical.

Core specifications

• Current rating: 125A
• Voltage rating: up to 240VAC
• Poles: 2-Pole
• Breaker type: Molded Case Circuit Breaker

Why this breaker matters

The Q12125’s molded case construction combines compact size with robust protection, enabling safer operation in tight panel layouts. Its 2-pole configuration is ideal for 240V circuits, allowing simultaneous interruption of both hot lines for enhanced safety in motor circuits and feeders. By standardizing on a proven Square D design, you simplify maintenance, stock compatibility, and future upgrades across multiple panels and control centers.

Ideal use cases

• Distribution panels in commercial buildings and industrial facilities that require reliable 125A protection
• Motor control centers (MCCs) where compact, two-line protection is needed
• OEM equipment enclosures and control panels that demand a durable, plug-compatible molded case breaker

Practical benefits in real-world setups

• Fits standard enclosures while delivering dependable overcurrent protection for 125A feeders and circuits
• Supports safe, quick disconnect of power in both hot legs for 240V applications
• Suitable for a wide range of industrial and commercial environments where uptime matters

How to choose and install

Ensure compatibility with your existing Square D panelboards, switchboards, or control panels and verify mounting provisions for molded case breakers. For upgrades or replacements, match the 125A current rating and 240VAC voltage rating to your system requirements, and follow all applicable electrical codes and safety guidelines. This Q12125 is a straightforward, reliable upgrade path for equipment that relies on steady, predictable protection in demanding settings.

Choose the Square D Q12125 when you need a compact, rugged 2-Pole molded case breaker that delivers solid overcurrent protection at 125A and 240V, keeping distribution panels and motor control centers running smoothly.