Siemens HF364 - 200A, 3-Pole, Fused Safety Switch

The Siemens HF364 is a purpose-built 200A, 3-Pole Fused Safety Switch designed for industrial and commercial settings that demand safe electrical isolation and reliable shutdowns. Built to support proper lockout/tagout procedures and to provide dependable disconnection under load, this switch is engineered for longevity and steady performance in demanding environments.

• Amperage and design: 200A rating with 3-Pole configuration delivers robust, three-phase isolation for feeders and equipment.
• Fused safety switching: Integrated fuses provide overcurrent protection and a clear, safe disconnect path, reducing arc exposure and improving fault handling.
• Safe isolation when it matters most: Specifically designed to support lockout/tagout workflows, helping personnel work confidently during maintenance and service outages.
• Durable, purpose-built housing: Constructed to withstand industrial and commercial environments, delivering long-term durability and consistent performance.
• Brand and model: Siemens HF364, a trusted solution for applications requiring reliable electrical isolation with a proven safety track record.

Who benefits most from the HF364? plant engineers, facilities managers, and electrical contractors responsible for reliable power distribution and safe maintenance practices. It’s ideal for manufacturing floors, distribution centers, processing facilities, and other environments where three-phase power must be isolated quickly and safely without compromising uptime.

Key use scenarios include routine maintenance shutdowns, equipment isolation during servicing, and situations where a clear, code-compliant disconnect is essential. The HF364 helps you minimize downtime while maximizing safety, making it a practical choice for upgrades, retrofits, and new installations alike.

Compared to non-fused disconnects, this fused safety switch provides integrated overcurrent protection and a defined disconnection path, enhancing protection for both personnel and downstream equipment. Its design emphasizes reliability under load, so you can trust it to perform when it matters most—during load conditions, startup sequences, and fault events.

Practical tips for getting the most from your HF364:

• Ensure proper lockout/tagout procedures are followed and that the switching device is accessible for maintenance personnel.
• Pair with compatible enclosures and mounting hardware that suit your installation environment and service clearances.
• Schedule regular visual inspections for signs of wear, fuse integrity, and mechanical operation to sustain long-term performance.
• Train staff on safe disconnection practices to leverage the HF364’s full protective potential during routine maintenance.