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

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

The SQUARE D H366AWK is a 600 A, three-phase, fusible safety switch rated for 600V AC. Constructed with galvanized steel for indoor/outdoor use, this heavy-duty disconnect provides a reliable means of isolating…

SKU 3G-OTH-26421

Brand
SQUARE D
Item
Safety Switch: Fusible, 600 A, Three Phase, 600V AC, Galvanized Steel
Category
Fusible Safety Switches
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

SQUARE D
Manufacturer Part Number
H366AWK
Type
600 A, Three Phase, Galvanized Steel, Indoor/Outdoor
AC
600V

Technical Documents

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

Product Description

The SQUARE D H366AWK is a 600 A, three-phase, fusible safety switch rated for 600V AC. Constructed with galvanized steel for indoor/outdoor use, this heavy-duty disconnect provides a reliable means of isolating electrical circuits for maintenance and safety.

Frequently Asked Questions

What is the SQUARE D H366AWK safety switch used for?

The SQUARE D H366AWK is a fusible safety switch rated for 600 A, three-phase, 600V AC. It is designed for indoor/outdoor use in industrial and commercial applications to safely disconnect power for maintenance or emergency shutdown, protecting equipment and personnel.

What are the specifications of the SQUARE D H366AWK safety switch?

The SQUARE D H366AWK is a fusible safety switch with a 600 A rating, three-phase, 600V AC, and a galvanized steel enclosure suitable for indoor/outdoor use. It is manufactured by SQUARE D under MPN H366AWK and is designed for heavy-duty industrial power disconnection.

Where to buy the SQUARE D H366AWK safety switch worldwide?

You can source the SQUARE D H366AWK safety switch through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring reliable supply for your facility's power disconnection needs.

How to install the SQUARE D H366AWK safety switch?

Installation of the SQUARE D H366AWK safety switch should follow the manufacturer's instructions and local electrical codes. Ensure the enclosure is securely mounted, wiring meets 600 A three-phase requirements, and the fusible disconnect is properly sized. Always de-energize the circuit before installation and consult a qualified electrician.

Used in

Common applications for SQUARE D
Commercial building electrical panels — Square D QO series plug-in circuit breakers for branch circuit protection
Industrial motor control centers — Square D QOB series bolt-on breakers in NQOD panelboards
Heating equipment installations — Square D QOU series unit-mount breakers for overcurrent protection
Outdoor electrical distribution — Square D L-Frame enclosures housing LAL/LHL breakers for 400 A service
Indoor facility power distribution — Square D Q-Frame enclosures with QBL/QDL breakers for 225 A circuits
Retrofit and replacement in existing Square D load centers — QO series breakers for 120/240V AC systems

SQUARE D Products

3G Electric supplies SQUARE D 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
SQUARE D Safety Switch: Fusible, 600 A, Three Phase, 600V AC, Galvanized Steel, Indoor/Outdoor (MPN H366R)
SQUARE D
SQUARE D Safety Switch: Fusible, 600 A, Three Phase, 600V AC, Galvanized Steel, Indoor/Outdoor (MPN H366R)
SQUARE D Safety Switch: Fusible, 600 A, Three Phase, 600V AC, Galvanized Steel, Indoor (MPN H366N)
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SQUARE D Safety Switch: Fusible, 600 A, Three Phase, 600V AC, Galvanized Steel, Indoor/Outdoor (MPN H366NAWK)
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SQUARE D Safety Switch: Fusible, 400 A, Three Phase, 600V AC, Galvanized Steel, Indoor/Outdoor (MPN H365AWK)

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