Square D QMB2220 - 200A, 240V, 2-Pole, Bus Plug

Designed by Square D, the QMB2220 Bus Plug delivers robust power distribution for demanding industrial and commercial environments. With a 200A rating at 240V and a compact 2-pole design, this bus plug integrates smoothly into standard busway and panelboard systems to keep critical equipment running reliably.

This unit is the right choice for facilities that require dependable, readily sourceable components for maintenance, repair, and upgrades. The QMB2220 excels in retrofit projects and situations where compatible, hard-to-find busplugs are essential to minimize downtime and keep projects on schedule.

Key features and benefits

• 200A, 240V, 2-pole configuration delivers strong, stable power delivery for high-demand equipment while preserving space in crowded electrical rooms.
• Busway and panelboard compatibility ensures seamless integration with existing Square D infrastructure and reduces modification needs during installation.
• Reliability in tough environments engineered to withstand industrial settings and frequent plug-in connections, supporting long service life.
• Ideal for retrofits a practical solution when upgrading aging systems or installing new capacity within established electrical networks.

Use cases and scenarios

Maintenance windows and downtime planning benefit from a plug that plugs into compatible busway/panelboard setups without extensive rework. For expansions, the QMB2220 adds 200A capacity to existing distributions without overhauling the entire system. In retrofit projects, it provides a dependable, readily sourced option when matching components are critical to project timelines.

Why choose the Square D QMB2220

As part of Square D’s proven bus plug lineup, the QMB2220 is built for reliability, compatibility, and longevity in both commercial facilities and rugged industrial plants. It’s a clear choice when you need a purpose-built plug that aligns with established busway and panelboard ecosystems.

Installation and sourcing tips

• Verify the 200A rating and 240V specification match your system requirements before purchase.
• Ensure bus plug compatibility with your busway or panelboard model to avoid fitment issues during installation.
• Coordinate with your electrical team to plan downtime and follow code-safe installation procedures.
• Keep a spare QMB2220 on hand for maintenance and retrofit projects to reduce lead times.