Siemens Q330H - 30 A, 240 V, 3-Pole Plug-In Circuit Breaker | AmpState

Meet the Siemens Q330H — a 30A, 240V, 3-pole plug-in molded case circuit breaker built to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Designed for fast, tool-free installation, it keeps downtime to a minimum while delivering consistent protection you can trust.

Why the Q330H stands out

• Fast plug-in connection enables quick installation and easy replacement, reducing panel downtime during upgrades or service calls.
• Thermal-magnetic trip unit provides stable, repeatable protection by responding appropriately to overloads and short circuits, helping to safeguard wiring and connected equipment.
• 3-pole, 30A, 240V configuration is ideal for 3-phase circuits and branch protections in a wide range of installations.
• OEM compatibility designed to work with matching Siemens load centers and panelboards for seamless integration and coordinated protection.
• Versatile across environments suitable for residential, commercial, and light industrial applications, from new builds to panel retrofits.

Technical snapshot

• Manufacturer: Siemens
• Part Number: Q330H
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 30A
• Voltage Rating: 240V
• Number of Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Use cases and practical value

Whether you’re upgrading a residential service panel, outfitting a small commercial distribution board, or protecting a light industrial feeder, the Q330H provides reliable protection with straightforward installation. Its plug-in design minimizes panel disruption, while the 30A rating and 240V operation cover a broad range of everyday circuits, from lighting runs to motor-driven loads.

What to expect in real-world setups

• Easy retrofits in existing Siemens-specified panels where a plug-in, 3-pole device is required
• Consistent protection for multi-wire branch circuits in homes or small businesses
• Clear, predictable trip behavior that helps minimize unexpected outages and simplify fault diagnosis

Installation and compatibility tips

Choose the Siemens Q330H when you need a trusted, plug-in circuit breaker that aligns with OEM load centers and panelboards. Verify your panel’s specification for a 3-pole, 30A, 240V device and follow standard electrical safety practices during installation or replacement to ensure optimal performance and safe operation.