Square D | PFI34045 | Bus Plug | 45A | 480V

The Square D PFI34045 Bus Plug is a purpose-built solution for dependable 480V power distribution, engineered to support maintenance, retrofit, and replacement projects with exacting compatibility. When your system requires a precise match for 480V, 45A operation, this bus plug delivers a reliable, plug-in path that minimizes downtime and preserves safety in demanding industrial environments.

Key specifications

• Amperage: 45A
• Voltage: 480V
• Part number: PFI34045
• Brand: Square D
• Application: maintenance, retrofit, and replacement in 480V distribution systems

Why this bus plug matters: In critical power networks, using the exact part number is the simplest, most reliable way to ensure fit and performance. The PFI34045 is designed to align with Square D bus duct configurations, reducing the guesswork that comes with cross-compatibility. By matching both the 45A rating and 480V requirement, it supports steady operation of your distribution system and helps prevent compatibility issues during a project refresh.

Ideal use cases

• Routine maintenance: seamless replacement where the plug-in interface remains consistent with existing bus plugs
• Retrofits: upgrade aging hardware on 480V lines without complex rewiring or redesign
• Emergency replacements: ready-to-install plug that restores service quickly after a fault or wear
• System upgrades: integrate with legacy 480V buses that require a 45A plug for continued reliability

Buying confidence and practical notes

Important: Confirm fit and ratings before ordering. Use the exact part number PFI34045 to verify compatibility with your Square D bus plug or receptacle configuration and your system’s 480V, 45A requirements. Keeping a part-numbered approach minimizes the risk of mismatch and supports a smoother procurement and installation process.