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SQUARE D Safety Switch: Non-Fusible, 100 A, Three Phase, 600V AC, Galvanized Steel - Non-Fusible Safety Switches
SQUARENon-Fusible Safety Switches

SQUARE D Safety Switch: Non-Fusible, 100 A, Three Phase, 600V AC, Galvanized Steel

SKU 3G-OTH-129298

Brand
SQUARE
Item
D Safety Switch: Non-Fusible, 100 A, Three Phase, 600V AC, Galvanized Steel
Category
Non-Fusible Safety Switches
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Technical Specifications

SQUARE
Manufacturer Part Number
HU663AWK
Type
100 A, Three Phase, Galvanized Steel, Indoor/Outdoor
AC
600V
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SQUARE Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is a Square D non-fusible safety switch used for?

A Square D non-fusible safety switch like the HU663AWK provides a visible disconnect for three-phase equipment up to 600V AC. It is used in industrial plants, commercial buildings, and utility applications to safely isolate motors, pumps, and machinery during maintenance or emergency shutdown.

What are the specifications of the Square D HU663AWK safety switch?

The Square D HU663AWK is a 100 A, three-phase, non-fusible safety switch rated for 600V AC. It features a galvanized steel enclosure rated for indoor/outdoor use. This model provides a reliable disconnect for industrial power distribution and motor control circuits.

Where to buy a Square D HU663AWK safety switch worldwide?

3G Electric supplies the Square D HU663AWK safety switch to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this non-fusible disconnect switch.

How to install a Square D non-fusible safety switch?

Installation of a Square D non-fusible safety switch must follow the National Electrical Code and local regulations. Mount the galvanized steel enclosure securely, connect line and load conductors to the appropriate terminals, and verify the switch operates freely before energizing. Always de-energize upstream circuits before installation.

Used in

Common applications for SQUARE
Industrial power distribution — Square D HU362AWC non-fusible safety switch for disconnecting three-phase loads up to 60 A.
Busway branch circuits — Square D PQ4203G fusible bus plug for overcurrent protection in I-Line busway systems.
Panelboard surge protection — Square D HL4IMA24C SPD for transient voltage suppression in 277/480V AC wye systems.
Power distribution in control panels — Square D 9080LBA263106 open distribution block for splitting 400 kcmil conductors.
Machine control stations — Square D 9001BG303 push-button station for open/close/stop operations in industrial machinery.
Motor starting and protection — Square D 8536SBG2V02H30S NEMA starter for non-reversing three-phase motor control up to 18 A.

SQUARE Products

3G Electric supplies SQUARE non-fusible safety switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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