Square D I-Line Busway: Type PQ for Safe Power Distribution

Square D Type PQ busway is connected using a “plug-and-play” stab mechanism for easy installation and adjustment.

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Square D I-Line Busway System Configuration makes it an important member of Schneider Electric’s I-Line busway system designed for safe and efficient power distribution in commercial and industrial settings. This technology adds flexibility to the electrical distribution infrastructure, easier installation, and higher electrical efficiency.

In this post, you’ll learn the key features of this Square D busway system, like its plug-and-play design, making installations quicker and more reliable, and the stab connection mechanism that facilitates secure electrical connections. You’ll also explore the system’s grounding features and various configurations, which provide flexibility for different power distribution needs.

Busway Stab for Easy, Secure Electrical Power Connections

I-Line Type PQ has a plug-in design that connects directly to the busway using a “stab” mechanism. This connection provides safe and reliable electrical connectivity while allowing easy installation and adjustment of electrical gear. It’s known for fusible designs and grounding that enhance safety while operating by providing good grounding for electrical connections.

Plug-and-Play Design with Multiple Configurations for Versatile Power Solutions: What differentiates this Square D I Line busway from other I-Line configurations in the company’s busway system catalog? It’s the “plug-and-play” design that allows for fast integration and adjustments without requiring major downtime. It also supports multiple configurations including 3-phase 3-wire and 3-phase 4-wire installations. This makes it a good choice for a range of electrical distribution situations. Type PQ busway can integrate both fuses and circuit breakers for overcurrent protection providing versatility and dependability. systems.

3 Key Design Features of Square D Type PQ Bus Plug

  1. Stab Design:
    Metal stabs pierce the busway insulation and make direct contact with the bus bars for a secure and reliable electrical connection. A firm connection prevents issues like overheating or power loss for efficient power flow.
  2. Alignment:
    Built-in guiding features help the plug align correctly with the busway, avoiding misalignment and reducing installation errors. Proper alignment delivers a smooth connection, preventing power disruptions and equipment failures.
  3. Grounding:
    A grounding spring helps ground before power connections are made, reducing the risk of electric shock or short circuits. Grounding improves safety particularly in commercial and industrial environments handling high loads. These design features make the I-Line PQ bus plug reliable and safe for power distribution.
Square D PQ3603 Fusible I-Line Busway Plug:
Instead of running individual wires to every machine, busway systems distribute power along a centralized bus.

Bus plugs are then used to easily drop power to specific machines or locations, eliminating separate wiring to each piece of equipment.

Square D busway specifications for Fusible Bus Plug — 30–100 A (Type “PQ”)

Catalog No. PrefixAmpere RatingWeight (Lb/Kg)Lugs Per PhaseLugs Per NeutralGround LugsA (in/mm)B (in/mm)
PQ3015 / 331 (#12 – #2)1 (#12 – #1/0)1 (#10 – #2)14.95 / 3797.98 / 203
PQ6015 / 331 (#12 – #2)1 (#12 – #1/0)1 (#10 – #2)14.95 / 3797.98 / 203
PQ10017 / 37.51 (#12 – #1/0)1 (#12 – #1/0)1 (#10 – #2)18.97 / 48011.98 / 304

For more specs, see the Square D busway systems catalog.

FAQ: What You Should Know about Square D Type PQ Busway

🟥 How does the connection mechanism work?
🟩 It uses a “stab” connection mechanism where metal stabs on the plug penetrate the busway’s insulation to connect with the bus bars. This provides a secure electrical link and allows for streamlined installation.

🟥 What busway configurations are available?
🟩 The busway is available in multiple configurations, including 3-phase 3-wire and 3-phase 4-wire setups. It supports both fuses and circuit breakers for overcurrent protection, making it adaptable to various electrical requirements.

🟥 What safety features are included?
🟩 The Square D busway includes grounding capabilities via a grounding spring. This establishes a ground connection before the power connections are made, improving safety by reducing the risk of electric shock or short circuits.

🟥 Can the busway installation be integrated into existing systems?
🟩 Yes, the plug-and-play design of the Type PQ Square D busway allows for quick integration into existing electrical distribution systems, supporting changes without extensive downtime.

🟥 What is the maximum amperage rating?
🟩 The busway typically supports various amperage ratings depending on the specific configuration. It can handle higher capacities compared to the earlier I-Line I version, meeting the demands of modern electrical systems.

🟥 How does the Type PQ I-Line Square D installation manual compare to other I-Line busway systems?
🟩 The PQ stands out from other I-Line configurations with its efficient plug-and-play design, secure stab connections, and flexibility in configurations and protection methods. It’s optimized for handling higher amperages and allows for faster installation compared to older I-Line systems.

Summary: Type PQ Square D busway offers efficient, safe, and adaptable power distribution. We looked at its stab connection mechanism for secure installations, the flexibility of its multiple configurations, and its grounding safety features. Its plug-and-play design enables easy integration into existing systems and supports high amperage ratings compared to older versions so that modern power needs are met efficiently.

Explore products in the Schneider Electric Busway Parts Catalog.