Square D QOB270 - 70A, 2-Pole, Circuit Breaker

Square D QOB270—a reliable 70A, 2-Pole circuit breaker engineered for dependable overcurrent protection in demanding electrical environments. This 2-Pole configuration is designed to guard two hot conductors in 240V circuits, making it a prudent choice for balanced load protection in a variety of setups.

• Current rating: 70A
• Poles: 2-Pole
• Breaker type: Circuit Breaker

Where you’ll use it matters. The QOB270 fits seamlessly into panelboards, switchboards, and control panels, delivering safety and protection where it counts. It’s well-suited for industrial facilities, commercial applications, and OEM environments where consistent performance and rapid isolation of faults are essential in distribution panels and motor control centers.

What makes this breaker stand out is its combination of straightforward integration and robust protection. With a two-pole design, you get coordinated protection for both legs of a 240V circuit, helping prevent unbalanced faults and reducing the risk of equipment damage. It’s a practical choice when you need reliable cut-off in feeders, motor circuits, or critical power paths within a panel or control system.

Practical use cases to consider:

• Feeder protection for commercial electrical panels and HVAC equipment in mid-to-large installations
• Motor control center applications where two hot lines require synchronized protection
• OEM panels and assemblies needing a dependable, drop-in replacement for two-pole protection at 70A

Tips for sizing and integration:

• Confirm the 70A rating aligns with your circuit’s load calculations and protection requirements
• Ensure compatibility with your panelboard or switchboard mounting arrangement and enclosure space
• Verify that the two-pole configuration aligns with the circuit’s voltage and conductor setup to maintain proper protection

In environments where safety, reliability, and clear fault isolation matter—such as distribution panels and motor control centers—the Square D QOB270 70A, 2-Pole circuit breaker delivers consistent performance. It’s a focused solution for professionals who value precise protection without compromising on ease of integration or operational reliability.