Square D Q1-280 - 120-240A, 2-Pole, Circuit Breaker

Meet the Square D Q1-280 2-Pole Circuit Breaker, a purpose-built solution for dependable overcurrent protection in demanding electrical systems. With a current rating of 120-240 A, this breaker is engineered to guard both the power feed and connected equipment in panelboards, switchboards, and control panels, delivering reliable performance when uptime matters most.

Designed as a 2-Pole device, the Q1-280 provides coordinated protection for both hot lines, ensuring that faults are promptly interrupted and safety is maintained across the distribution network. This makes it an ideal fit for environments where safe operation and quick fault isolation are non-negotiable—from busy manufacturing floors to centralized control centers.

Key advantages

• Two-pole protection ensures simultaneous disconnection on both lines during a fault, enhancing safety and system reliability.
• Wide current range—120-240 A—offers flexibility for a variety of circuit sizes and applications.
• Versatile mounting and compatibility designed for seamless use in panelboards, switchboards, and control panels within industrial, commercial, and OEM settings.
• Robust, predictable protection provides stable trip characteristics essential for protecting wires, motors, and downstream devices.

Practical applications and use cases

• Industrial distribution panels powering conveyors, pumps, and drives where consistent overcurrent protection is critical.
• Motor control centers requiring reliable de-energization of faulty circuits to prevent equipment damage and downtime.
• Commercial electrical assemblies and OEM equipment that demand durable protection in compact, two-pole form factors.

Why this matters for your project

The Square D Q1-280 brings a focused, purpose-built solution to protect circuits and equipment in everyday operations. Its 2-Pole design reduces the risk of partial energization during faults, while the 120-240 A rating accommodates a broad range of loads. When you need consistent, safe interruption of power across multiple conductors, this breaker keeps systems aligned with performance and safety goals.

Specifications at a glance

• Current rating: 120-240 A
• Poles: 2-Pole
• Breaker type: Circuit Breaker
• Applications: Panelboards, switchboards, and control panels
• Ideal for: Industrial, commercial, and OEM applications requiring dependable overcurrent protection and safe operation in distribution panels and motor control centers