Square D PQ4203G - 30A, 240V, 3-Phase, Bus Plug

When you need reliable, ready-to-deploy power distribution in demanding environments, the Square D PQ4203G bus plug stands ready. Rated at 30A and 240V across 3 phases, it integrates seamlessly with busway and panelboard systems to deliver steady, safe power to critical equipment and processes.

Built by Square D, the PQ4203G is a dedicated bus plug designed for industrial plants, commercial facilities, process equipment, and retrofit projects where compatibility and availability matter.

Key specifications

• Brand: Square D
• Model: PQ4203G
• Type: Bus Plug
• Amperage: 30A
• Voltage: 240V
• Phase / Poles: 3-Phase
• Applications: Busway and panelboard power distribution systems

Where it shines

Whether you’re performing routine maintenance, executing a retrofit, or upgrading an older distribution network, this bus plug ensures a dependable connection between your power source and the downstream loads. It’s specifically suited to support industrial processes, commercial equipment racks, and other 3-phase loads that demand consistent voltage and current in challenging environments.

Ideal for

• Maintenance and repair projects that require compatible, hard-to-find busplugs
• Retrofits of aging panelboards or busways to restore capacity and reliability
• New installations where a standard 3-phase 240V supply is needed across a 30A circuit

Practical benefits

• Compatibility: Designed to integrate with existing Square D busway and panelboard ecosystems, reducing engineering guesswork during upgrades.
• Reliability: Built for steady power delivery in manufacturing floors, distribution rooms, and equipment rooms where downtime costs money.
• Ease of installation: Streamlined connection points to minimize install time and risk during maintenance windows.

How this bus plug fits your retrofit strategy

For facilities converting from older, less reliable power distribution to a more modular busway approach, the PQ4203G provides a drop-in solution that preserves system voltage integrity and load balance across three legs. It’s a practical choice when you need to refresh a portion of your power distribution without overhauling your entire panel or busway network.

Usage considerations

Before specification, verify that your busway and panelboard assembly is compatible with the PQ4203G model, and confirm the 30A, 240V, 3-phase configuration matches your distribution needs. This part is designed for industrial and commercial contexts, where reliable, maintainable power distribution is essential to keep lines up and running.