Siemens Q2225B - 225 A, 240 V, 2-Pole Plug-In Circuit Breaker | AmpState

The Siemens Q2225B is a 2-pole, 225A, 240V plug-in molded-case circuit breaker engineered to deliver dependable branch circuit protection in panelboards and load centers. Built for fast installation and easy service, it plugs in quickly, reducing downtime when swapping out worn breakers or expanding capacity.

• Fast plug-in connection enables swift installation and effortless replacement in Siemens-compatible panelboards and load centers.
• Thermal-magnetic trip unit combines a thermal element for overload protection with an instantaneous magnetic trip for short-circuit events, delivering stable, repeatable protection across a wide range of operating conditions.
• 225A, 240V, 2-pole configuration provides reliable protection for high-current feeders and 2-hot-wire circuits common in residential, commercial, and light industrial applications.
• OEM-compatible design matches Siemens and other OEM load centers for a seamless fit and consistent performance.
• Versatile application ideal for protecting branch circuits in service panels, subpanels, and other distribution equipment in homes, offices, and light industrial facilities.

How it helps your electrical system: a plug-in, molded-case breaker like the Q2225B can quickly interrupt excessive current to prevent overheating, equipment damage, and fire risk. The thermal-magnetic trip curve is engineered to react proportionally to sustained overloads while snapping shut during short circuits, preserving downstream devices and wiring within typical safety margins.

Practical use scenarios include powering high-draw appliances in a central panel, feeding large circuits like HVAC equipment, water heaters, or industrial pumps, and expanding or upgrading panels where fast, reliable replacements are essential. When you need a robust, high-amperage protection solution that pairs with Siemens load centers, the Q2225B delivers consistent performance, ease of installation, and long-term reliability.