Square D | PBMA36400 | Bus Plug | 400A | 600V

Square D PBMA36400 Bus Plug — a rugged, exact-match bus plug rated for 400A at 600V, purpose-built for maintenance, retrofit, and replacement tasks in Square D electrical systems. Designed to drop into existing bus assemblies without guesswork, this plug helps keep critical power distribution running smoothly while minimizing downtime.

With its 400A and 600V ratings, this bus plug is ideal for medium- to high-load distribution panels and switchgear where a secure, reliable connection is essential. Using the PBMA36400 ensures proper alignment with Square D bus bars and connectors, reducing the risk of mismatches that can lead to poor contact or connection failures.

Key specifications

• Amperage: 400 A
• Voltage: 600 V
• Part number: PBMA36400

Why this bus plug matters

This is not just a plug; it’s a purpose-specific component designed to fit Square D hardware exactly, supporting reliable power distribution in demanding environments. It’s an ideal choice when you’re performing maintenance, retrofitting to accommodate updated equipment, or replacing a worn or damaged plug—without overhauling entire bus assemblies.

Ideal use scenarios

• Maintenance on Square D distribution panels and switchgear that require a 400A, 600V bus plug.
• Retrofit projects where upgrading to higher-capacity or newer Square D equipment necessitates an exact-match bus plug.
• Replacement of a failed or degraded bus plug to restore secure, compliant electrical connections.

Fit and compatibility notes

Notes: Confirm fit and ratings before ordering. The PBMA36400 part number is the best reference for compatibility.

Professionals selecting components for Square D systems will appreciate the precise compatibility and straightforward integration this bus plug offers, ensuring reliable performance in your distribution network.