Siemens HF325NA - 400A, 240V, Fused Disconnect Switch

The Siemens HF325NA is a robust 400A, 240V fused disconnect switch engineered for demanding industrial and commercial electrical environments. It provides safe, reliable electrical isolation and supports proper lockout/tagout procedures, making maintenance safer and more efficient. Built for long-term durability, it delivers dependable disconnection under load when you need it most.

Why the HF325NA stands out

• High-capacity protection—400A at 240V handles large distribution circuits and heavy-duty equipment with confidence.
• Built-in fused protection—integrated fusing delivers immediate, reliable interruption, streamlining safety procedures and reducing downstream wiring complexity.
• Indoors, rugged enclosure—NEMA 1 enclosure protects the switching elements in typical indoor electrical rooms, delivering dependable performance in controlled environments.
• Safe isolation under load—engineered to provide a clean, assured disconnect even when circuits are energized, supporting safe maintenance and shutdowns.
• Lockout/Tagout ready—designed to integrate with standard safety protocols, helping facilities maintain compliant, repeatable isolation processes.

Ideal applications

• Industrial machinery and motor control centers that require reliable power isolation
• Commercial service entrances and distribution panels needing straightforward, safe shutdowns
• Pumps, conveyors, and other high-load equipment where quick, dependable disconnection is critical
• Electrical rooms and switchgear assemblies where durable, easy-to-maintain protection is essential

What makes this product different

Unlike standalone disconnect solutions, the HF325NA combines switching and protection in a single, purpose-built device. This consolidation reduces wiring complexity, enhances safety shutdown clarity, and simplifies routine maintenance—so technicians can service equipment faster with less risk.

Specifications at a glance

• Amperage Rating: 400A
• Voltage Rating: 240V
• Enclosure Rating: NEMA 1
• Product Type: Fused Disconnect Switch
• Brand: Siemens
• Model: HF325NA

For facilities prioritizing safe, dependable electrical isolation with straightforward maintenance workflows, the Siemens HF325NA delivers consistent performance, clear isolation points, and enduring durability in demanding environments.