Square D | Q1B340VH | Circuit Breaker | 3-Pole | 240V | Bolt-On

Square D Q1B340VH is a 3-pole, 240-volt bolt-on circuit breaker designed for reliable protection in compatible panels. Built for maintenance, retrofit, and replacement tasks where exact specifications matter, this unit delivers dependable performance when you need to preserve or upgrade electrical safety.

• Part number: Q1B340VH
• Poles: 3-Pole
• Voltage: 240V
• Mounting: Bolt-On
• Compatibility note: The part number is the best reference for compatibility—confirm fit and ratings before ordering.

Who should consider this Square D circuit breaker? Electricians, facility maintenance teams, and contractors performing panel maintenance or upgrades who need a precise match for existing Square D installations.

Key benefits and use cases:

• Maintenance and retrofit: keep your electrical system up to date by replacing worn or obsolete breakers with an exact-match substitute.
• Retrofit projects: swap in the Q1B340VH when your panels specify the Q1B family, ensuring secure bolt-on connections and reliable trip performance.
• Replacement scenarios: use the 3-pole, 240V unit to protect multi-wire branch circuits that require balanced, three-pole protection.

Practical guidance for ordering and installation: since the part number is the best compatibility reference, always cross-check the panel labeling and service requirements before purchase. This helps avoid mismatches and ensures you retain the intended safety and performance characteristics of your Square D system.