Siemens WB2225 - 200A, 1-Phase, Switch, NEMA 3R

Siemens WB2225 200A, 1-Phase NEMA 3R Fusible Switch

Meet the Siemens WB2225—the robust, maintainable fusible switch engineered for reliable on/off isolation and overcurrent protection in demanding industrial and commercial environments. With a 200A rating and a 1-Phase configuration, this switch delivers straightforward, dependable protection in a compact footprint. Its NEMA 3R enclosure is designed to withstand outdoor conditions, making it an ideal choice for installations exposed to weather, dust, and routine use.

Designed to serve as a dedicated motor disconnect, panelboard protector, or branch circuit guard, the WB2225 consolidates protection and isolation in a single, low-maintenance unit. This makes it simpler to manage wiring, reduces panel complexity, and supports safer maintenance windows by providing a clear, mechanical means to isolate power before service work.

Key Benefits

• 200A, 1-Phase performance for efficient protection of motors and single-phase circuits in a compact arrangement.
• NEMA 3R enclosure delivers outdoor-ready protection against rain, dust, and incidental impacts—keeping critical equipment safe in varied environments.
• Integrated isolation and overcurrent protection in one durable unit simplifies installation and reduces wiring clutter in control panels and outdoor cabinets.
• Versatile application well-suited for motor disconnects, panelboards, and branch circuits where a maintainable fusible switch is required.
• Maintenance-friendly design supports straightforward fuse replacement and safe servicing, minimizing downtime during routine maintenance or fault events.

Practical use cases include outdoor pump stations, rooftop HVAC equipment, and production lines where dependable, code-respecting protection and quick isolation are essential. The WB2225 helps facilities keep critical systems running smoothly while ensuring safe, compliant shutdowns for service and repairs.

Choose Siemens for a legacy of reliability. The WB2225 200A, 1-Phase NEMA 3R fusible switch is designed to integrate with standard electrical components and mounting footprints, making it a practical upgrade for aging disconnects or new installations that demand robust protection in a compact, maintainable package.