Square D | Q2LH2175 | Circuit Breaker | 175A | 2-Pole | 240V

Meet the Square D Q2LH2175 circuit breaker — a purpose-built, high-current solution designed for demanding electrical systems. With a 175A rating, two poles, and a 240V operating voltage, this unit delivers dependable overcurrent protection for critical circuits while maintaining smooth, predictable performance in retrofit, maintenance, and replacement projects.

What makes the Q2LH2175 stand out

• Exact compatibility by part number: The Q2LH2175 is the most reliable reference when matching breakers to panels. Confirming the part number ensures correct fit, trip characteristics, and electrical safety.
• High-current, two-pole protection: Ideal for 240V circuits that require simultaneous protection of both live conductors, helping prevent overloads and electrical faults across the entire circuit path.
• Maintenance-ready and retrofit-friendly: Designed for installation in existing electrical systems where upgrading or replacement is needed without changing panel infrastructure.
• Durable Square D reliability: Built by a trusted name in electrical protection, engineered to withstand typical vibration, temperature variations, and routine operation in commercial and light industrial environments.

Technical at-a-glance

• Amperage: 175A
• Poles: 2-Pole
• Voltage: 240V
• Part number: Q2LH2175

Ideal use scenarios

• Retrofits in existing panels where a 175A, 2-pole, 240V solution is required to support upgraded loads or new equipment.
• Maintenance replacements to restore original protection ratings and maintain panel integrity.
• Replacement of aging breakers in commercial spaces, workshops, or light industrial applications that rely on stable, reliable overcurrent protection.

Practical guidance for a confident purchase

Before ordering, verify that the Q2LH2175 matches your panel’s ratings and labeling. Because panel compatibility hinges on the exact part number, using Q2LH2175 as the reference ensures you’re selecting a unit that fits and functions as intended within your system. This approach minimizes downtime and ensures consistent protection for your 240V circuits.

In practice, this breaker supports straightforward, drop-in replacement for existing 2-pole, 240V configurations, providing a familiar form factor and electrical characteristics that align with standard Square D panels. Once installed, you’ll benefit from predictable trip behavior and reliable performance across routine loads and unexpected surges alike.