QBF365 - 400A, 120V, 3-Phase, Fusible Bus Plug

QBF365 Fusible Bus Plug is engineered for reliable power distribution in the most demanding industrial and commercial environments. With a robust 400A rating at 120V and a true 3‑phase configuration, this bus plug is designed to slot neatly into existing busway and panelboard systems, delivering steady, protected power to critical equipment.

Core specifications at a glance

• Model: QBF365
• Type: Fusible Bus Plug
• Amperage: 400A
• Voltage Rating: 120V
• Phase / Poles: 3-Phase
• Application: Busway and panelboard power distribution systems
• Typical Use: Industrial plants, commercial facilities, process equipment, retrofit projects
• Ideal for: Maintenance, repair, and upgrade projects where compatible, hard-to-find busplugs are required

What makes the QBF365 unique

• Hard-to-find compatibility, made easier: Specifically designed for retrofit and upgrade projects where standard bus plugs don’t fit or aren’t readily available.
• High-current, compact integration: 400A capability within a form factor optimized for busway and panelboard distributions, enabling reliable feeds to essential equipment without bulky add-ons.
• Three-phase speed and precision: Engineered to support balanced 3‑phase distribution, helping maintain voltage stability across connected loads.
• Industrial-grade reliability: Built to endure the rigors of industrial plants and commercial facilities, ensuring dependable power delivery in mission-critical applications.

Ideal use cases and scenarios

• Retrofit projects: Upgrading aging distribution networks with compatible fusible bus plugs to restore protection and reliability without rewiring.
• Maintenance and repair: Replacing failed or degraded bus plugs to restore service quickly in key production lines or processing equipment.
• New or expanded installations: Integrating a robust fusible bus plug into existing busway and panelboard layouts to support added loads or revised layouts.
• Process equipment feeds: Supplying critical process equipment with a reliable, well-protected power path in both industrial and commercial settings.

Why facilities teams choose QBF365

• Clear fit for 3‑phase distribution: Ensures proper alignment with your 3‑phase busway networks and panelboard configurations.
• Targeted compatibility: Ideal for projects where a specific fusible bus plug is required to maintain system integrity and protection schemes.
• Operational resilience: By providing integrated fusible protection within the plug, it supports prompt fault isolation and minimal downtime during maintenance windows.

Practical considerations

When planning installation, verify that the QBF365 aligns with your existing busway and panelboard setup, and confirm that 400A, 120V, 3‑phase operation matches your load requirements. This unit is purpose-built for environments that demand dependable, compatible fusible bus plugs for ongoing reliability and easier future upgrades.