Westinghouse HUN364 - 200A, 600V, 3-Phase, Safety Switch

The Westinghouse HUN364 is a robust 200A, 600V, 3-Phase safety switch built to deliver reliable on/off isolation and overcurrent protection in demanding industrial and commercial environments. Designed as a dependable motor disconnect, it helps keep personnel safe during maintenance while protecting critical equipment from electrical faults. Its compact, maintainable fusible switch design fits tight spaces without sacrificing performance.

Key specifications at a glance

• Model: HUN364
• Amperage: 200A
• Voltage: 600V
• Phase: 3-Phase

Why this safety switch stands out

• Reliable isolation for service and protection: Provides clear, safe off-state for motor drives, panelboards, and branch circuits, reducing the risk of accidental energization during maintenance.
• Compact, maintainable design: A fusible switch construction that fits smaller electrical rooms while offering straightforward inspection and serviceability.
• Three-phase performance: Balanced switching across all phases to support multi-motor loads and help minimize arc energy during operation and disconnection.
• Industrial-grade resilience: Built to perform in busy environments where dependable disconnects and overcurrent protection are essential to keep lines up and equipment safe.

Ideal use cases

The HUN364 is an excellent fit for motor disconnects, panelboard isolation points, and branch circuit protection where a compact, fusible switch is required. Typical applications include:

• Motor control circuits in manufacturing lines and conveyors
• Disconnection points for pumps, fans, and HVAC equipment in industrial facilities
• Isolating sections of panelboards in commercial electrical rooms

Practical benefits and outcomes

Choosing the HUN364 translates to safer maintenance windows, tighter control over electrical faults, and improved reliability for essential equipment. The switch’s three-phase design ensures balanced distribution of power during switching events, while its compact footprint helps maximize usable space in crowded electrical spaces. By providing a clear, accessible disconnect, it supports faster fault isolation, easier diagnostics, and smoother preventive maintenance cycles.

Installation and maintenance guidance

• Integrate the HUN364 into your protection scheme to enable immediate isolation for service work and fault containment.
• Schedule regular inspections of the operating mechanism and the fusible components (as applicable) to ensure consistent performance.
• Maintain clear labeling and adhere to lockout/tagout procedures to maximize crew safety during maintenance activities.
• Consult the official installation and maintenance guidance for any fusible elements to ensure proper handling, replacement, and compatibility with your electrical system.

With the Westinghouse HUN364, you’re choosing a trusted, purpose-built solution for safe, efficient electrical isolation in environments where reliability matters most. Its combination of 200A capacity, 600V rating, and 3-phase configuration delivers a practical, space-conscious disconnect that supports dependable motor control and circuit protection without compromise.