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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 H366N is a 600 A, three-phase, fusible safety switch rated for 600V AC. Housed in a galvanized steel enclosure for indoor use, this heavy-duty disconnect is designed for reliable circuit isolation in…

SKU 3G-OTH-28542

Brand
SQUARE D
Item
Safety Switch: Fusible, 600 A, Three Phase, 600V AC, Galvanized Steel
Category
Fusible Safety Switches
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

SQUARE D
Manufacturer Part Number
H366N
Type
600 A, Three Phase, Galvanized Steel, Indoor
AC
600V

Technical Documents

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

Product Description

The SQUARE D H366N is a 600 A, three-phase, fusible safety switch rated for 600V AC. Housed in a galvanized steel enclosure for indoor use, this heavy-duty disconnect is designed for reliable circuit isolation in industrial power distribution systems.

Frequently Asked Questions

What is the SQUARE D H366N safety switch used for?

The SQUARE D H366N is a fusible safety switch designed for three-phase industrial applications up to 600 A and 600V AC. It provides a visible disconnect means for motors, machinery, and distribution panels, ensuring safe maintenance and compliance with electrical codes in commercial and industrial facilities.

What are the specifications of the SQUARE D H366N safety switch?

The SQUARE D H366N is a 600 A, three-phase, 600V AC fusible safety switch with a galvanized steel enclosure for indoor use. It is manufactured by SQUARE D under MPN H366N and is suitable for heavy-duty industrial power distribution and motor circuit disconnection.

Where to buy the SQUARE D H366N safety switch worldwide?

3G Electric supplies the SQUARE D H366N safety switch worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this SQUARE D fusible safety switch globally.

How to install the SQUARE D H366N safety switch?

Install the SQUARE D H366N safety switch on a sturdy indoor surface, ensuring proper grounding per local codes. Use appropriately rated fuses and conductors for 600 A, 600V AC. Always de-energize the circuit before installation and follow SQUARE D's manual for torque and clearance requirements.

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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SQUARE D Safety Switch: Fusible, 600 A, Three Phase, 600V AC, Galvanized Steel, Indoor/Outdoor (MPN H366R)
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