Square D | QH230 | Circuit Breaker | 30A | 2-Pole | 240V | Plug-In

Meet the Square D QH230 circuit breaker—30A, 2-Pole, 240V, plug-in. This unit is built for maintenance, retrofit, and replacement projects where precise specifications and reliable protection are essential for your electrical system.

Designed to fit Square D panels that accept the QH series plug-in breakers, the QH230 delivers secure, fast installation and dependable overcurrent protection for 240V circuits. Its two-pole configuration ensures simultaneous disconnection of both live conductors, enhancing safety during faults and outages.

• Amperage: 30A
• Poles: 2-Pole
• Voltage: 240V
• Design: Plug-In for quick swaps in compatible Square D panels

Important: Confirm fit and ratings before ordering. The part number is the best reference for compatibility.

Why this breaker stands out

With a plug-in design, the QH230 enables faster replacements and reductions in downtime when servicing panels. It’s purpose-built for 240V circuits, delivering stable protection for equipment and circuits that rely on reliable, dual-pole interruption. By sticking to the QH230 part number, you ensure you’re getting the exact profile, mounting, and trip characteristics your panel expects.

Ideal use cases

• Routine maintenance in existing Square D panels that accept QH-series breakers
• Retrofits where an exact 30A, 2-pole, 240V unit is required
• Replacement of a failed breaker with matching ratings to maintain panel integrity

Quick installation and best practices

• Power down the system and verify the panel is compatible with QH-type plug-in breakers before installation
• Handle the breaker by the body and align with the bus bars to ensure secure seating
• Follow local electrical codes and, if in doubt, consult a licensed electrician