Siemens Q330 30A 3P 240V Circuit Breaker, Plug-On | AmpState

Engineered for everyday electrical work, the Siemens Q330 is a 3-pole, 30-amp, 240-volt plug-on circuit breaker designed to protect panelboards, load centers, and electrical distribution systems. Its plug-on design simplifies retrofit projects and routine maintenance, allowing you to swap in a like-for-like part without disturbing the bus or enclosure. This makes the Q330 an ideal choice when project requirements call for maintaining the exact part number for inventory and documentation consistency.

Key specs at a glance

• Amperage: 30 A
• Poles: 3
• Voltage: 240 V
• Mounting: Plug-On
• Applications: Panelboards, load centers, electrical distribution

Why installers choose the Q330

With its reliable protection in a compact plug-on form, the Q330 provides solid circuit interruption for 3-phase 240-volt circuits. The plug-on design reduces installation steps, making it faster to complete replacements during retrofit projects or preventive maintenance. By matching the exact part number, you preserve compatibility with existing equipment and documentation, minimizing downtime and confusion on busy job sites.

Part-number consistency and compatibility

For retrofit work and maintenance planning, keeping the exact part number can be crucial. The Siemens Q330 is built to fit standard panelboards and load centers where a 30 A, 3-pole, 240 V plug-on breaker is required, ensuring straightforward replacements without unnecessary adapters or rewiring. If you’re unsure about fit, send us the panel details and we’ll help verify compatibility.

About AmpState

Available from AmpState, the Siemens Q330 delivers trusted circuit protection for your electrical distribution needs. If you need help matching a part number or confirming compatibility, message us and we’ll help you confirm fit.