Siemens Q330 - 30 A, 240 V, 3-Pole Plug-In Circuit Breaker | AmpState

Meet the Siemens Q330—a purpose-built 30A, 240V, 3-pole plug-in molded case circuit breaker designed to deliver reliable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Its quick-connect plug-in design means faster installs and easier field replacements, keeping your electrical system up and running with minimal downtime.

• Fast plug-in connection: streamlined installation and effortless replacement in Siemens-compatible panels, reducing service time and labor costs.
• Thermal-magnetic trip unit: combines thermal overload protection with magnetic short-circuit response for stable, repeatable protection and precise trip timing.
• 3-pole design: ideal for 3-phase circuits or multi-pole protection, consolidating protection into a single unit and simplifying panel layout.
• OEM-load center compatibility: engineered to fit seamlessly with matching Siemens load centers and panelboards, ensuring dependable electrical contact and coordinated protection.
• Rugged, molded-case construction: built to withstand everyday use in residential, commercial, and light industrial environments while maintaining consistent performance.

This breaker is the right choice for electricians and facilities managers who demand consistent protection without the guesswork. Whether you're upgrading an existing panel, installing new equipment, or protecting critical circuits, the Q330 delivers predictable performance when it matters most.

Who this is for
• Electrical contractors securing reliable protection in Siemens-compatible panels
• Facility managers upgrading branch-circuit protection in light commercial settings
• Homeowners or property owners installing or maintaining Siemens load centers

Ideal use cases
• New installations in main or subpanels for 3-phase equipment or multi-wire circuits
• Replacement in service panels to restore quick, dependable protection
• Light industrial applications requiring robust, plug-in protection with straightforward maintenance

Technical specifications

• Part Number: Q330
• 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