Siemens GF225NRA - 400A, 240V, Fused Disconnect Switch

Meet the Siemens GF225NRA—an uncompromising fused disconnect switch built for the rigors of industrial and commercial environments. Engineered to deliver safe electrical isolation with dependable disconnection under load, this 400A, 240V solution is purpose-built for technicians who demand reliability, quick maintenance, and clear, lockable safety procedures on every job.

Why the GF225NRA stands out

• Robust current handling: 400A rating makes it a natural fit for large feeders and demanding equipment lines, reducing the need for multiple smaller disconnects.
• Clear 240V compatibility: Designed to integrate smoothly with standard industrial distribution, enabling straightforward installation and service access.
• Built-in fuse protection: The fused design provides immediate overcurrent protection, helping safeguard downstream equipment and extending the longevity of your system.
• Lockout/Tagout compatibility: Supports proper safety procedures so maintenance crews can secure circuits and work without interruption or risk.
• Durable, long-term performance: Engineered for reliability in busy facilities, with a focus on minimizing unscheduled downtime and simplifying routine maintenance.

Ideal applications and use cases

The GF225NRA is ideal as the main disconnect for heavy machinery, automated production lines, conveyors, presses, and HVAC systems where dependable isolation is essential. Use it as a primary service disconnect in machine rooms or as a dedicated feeder disconnect in control panels—wherever robust electrical isolation and rapid, safe shutdown are required.

Practical benefits you’ll feel on the floor

• Faster maintenance windows: Built-in fusing helps you quickly isolate and de-energize for servicing without transferring risk to nearby equipment.
• Improved safety posture: Lockout/tagout compatibility reduces the chance of accidental re-energization during repairs or inspections.
• Operational reliability: A purpose-designed disconnect that stands up to continuous industrial use, helping you keep lines up and production moving.

Specifications at a glance

• Amperage rating: 400A
• Voltage rating: 240V
• Product type: Fused Disconnect Switch
• Brand: Siemens
• Model: GF225NRA

Installation and guidance

Designed for professional installation, the GF225NRA should be wired by qualified personnel in accordance with local electrical codes. Ensure compatibility with your system’s feeders and fuse type, and keep a small stock of replacement fuses on hand for quick maintenance. Pairing this unit with proper lockout/tagout procedures will enhance safety and compliance across your facility.