QBF364-4 - 200A, 480V, 3-Phase, Fusible Bus Plug

QBF364-4 is a Fusible Bus Plug built for dependable power distribution in demanding industrial and commercial environments. Rated at 200A and 480V in a 3-Phase configuration, this plug-in solution integrates directly into busway and panelboard power distribution systems to feed equipment with clear, protected power where it's needed most.

Key specifications

• Model: QBF364-4
• Type: Fusible Bus Plug
• Amperage: 200A
• Voltage Rating: 480V
• Phase / Poles: 3-Phase

Applications and use cases

Ideal for industrial plants, commercial facilities, process equipment, and retrofit projects where compatible, hard-to-find busplugs are required. This model is specifically suited for ongoing maintenance, repair, and upgrade work that relies on exact-fit bus plugs to maintain system integrity.

What makes this bus plug unique

• Designed to support reliable distribution in demanding settings within busway and panelboard power distribution systems
• Targets maintenance, repair, and upgrade projects that need a compatible, hard-to-find busplug
• Model-specific fit (QBF364-4) for precise compatibility with established electrical layouts

Who benefits

• Electrical maintenance teams restoring or expanding distribution networks
• Facilities managers planning capacity upgrades in existing facilities
• Engineers specifying protective bus-plug solutions for new or retrofitted equipment
• Contractors performing retrofit work in industrial or commercial environments

Installation and compatibility tips

This fusible bus plug is intended for use with busway and panelboard power distribution systems. Confirm that your infrastructure supports 200A at 480V and that the busway/panelboard configuration matches the 3-Phase, 3-pole design of the QBF364-4. Use only compatible fuses and follow standard electrical safety practices. For retrofit projects, align the plug with your existing protection scheme to maintain proper coordination. When replacing worn or obsolete bus plugs, sourcing the same model helps preserve electrical characteristics and performance across the distribution network.

Maintenance guidance

Plan routine checks to verify secure connections and inspect fuse elements according to OEM guidelines. Replacing with the same 200A, 480V, 3-Phase fusible plug ensures continued protection and consistent performance in your busway and panelboard systems.