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SQUARE D PBQ4640G Fusible Bus Plug, 400 A, 240/600V AC, PBQ, H/K/R Fuse Class - PQ- and PQB -Type, Square D Fusible Bus Plugs
SQUAREPQ- and PQB -Type, Square D Fusible Bus Plugs

SQUARE D PBQ4640G Fusible Bus Plug, 400 A, 240/600V AC, PBQ, H/K/R Fuse Class

The SQUARE D PBQ4640G is a PQ- and PQB-Type fusible bus plug unit rated for 400 A at 240/600V AC. It features a PBQ design with an H/K/R fuse class and is compatible with SE Square D I-Line and I-Line II Busway systems.

SKU 3G-OTH-127603

Brand
SQUARE
Item
D PBQ4640G Fusible Bus Plug, 400 A, 240/600V AC, PBQ, H/K/R Fuse Class
Part Number
PBQ4640G
Category
PQ- and PQB -Type, Square D Fusible Bus Plugs
Available to Order
Also known as:PBQ4640GSQUARE
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Technical Specifications

SQUARE
Manufacturer Part Number
PBQ4640G

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SQUARE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SQUARE D PBQ4640G is a PQ- and PQB-Type fusible bus plug unit rated for 400 A at 240/600V AC. It features a PBQ design with an H/K/R fuse class and is compatible with SE Square D I-Line and I-Line II Busway systems.

Frequently Asked Questions

What is the SQUARE D PBQ4640G busway plug used for?

The SQUARE D PBQ4640G is a fusible bus plug unit used to tap power from Square D I-Line and I-Line II busway systems. It provides overcurrent protection for branch circuits in industrial and commercial electrical distribution, rated for 400 A at 240/600V AC.

What are the specifications of the SQUARE D PBQ4640G?

The SQUARE D PBQ4640G is a PQ- and PQB-Type fusible bus plug rated for 400 A at 240/600V AC. It uses an H/K/R fuse class and features a PBQ design. It is compatible with SE Square D I-Line and I-Line II Busway systems. The manufacturer part number is PBQ4640G.

Where to buy the SQUARE D PBQ4640G worldwide?

3G Electric supplies the SQUARE D PBQ4640G fusible bus plug unit worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this Square D component.

How to select the correct SQUARE D bus plug for your busway?

To select the correct SQUARE D bus plug, verify your busway system is I-Line or I-Line II. Match the plug's voltage (240/600V AC), amperage (400 A), and fuse class (H/K/R) to your load requirements. The PBQ4640G is designed for Square D systems; consult a qualified electrician for proper sizing.

Used in

Common applications for SQUARE
Commercial building lighting control — Square D 8903LO60V04 (6-pole, 30 A, 277V AC coil) for switching large-area lighting in offices and retail spaces.
Warehouse lighting — Square D 8903LO1000V02 (10-pole, 30 A, 120V AC coil) for centralized control of high-bay lighting circuits.
Parking lot lighting — Square D 8903SPO2V04 (3-pole, 60 A, 277V AC coil) for remote switching of exterior lighting groups.
Manufacturing facility lighting — Square D 8903LO1200V02 (12-pole, 30 A, 120V AC coil) for multi-circuit lighting control in production areas.
Industrial facility lighting — Square D 8903SMO2V02 (3-pole, 30 A, 120V AC coil) for switching lighting in small zones or individual rooms.
Large-scale lighting systems — Square D 8903LO80V02 (8-pole, 30 A, 120V AC coil) for controlling multiple lighting circuits from a single point.
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SQUARE Products

3G Electric supplies SQUARE pq- and pqb -type, square d fusible bus plugs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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