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SQUARE D Fuse Rejection Kit: UL Fuse Class R, 600V AC - Fuse Kits
SQUARE DFuse Kits

SQUARE D Fuse Rejection Kit: UL Fuse Class R, 600V AC

The SQUARE D Fuse Rejection Kit (MPN RFK03H) is a UL Fuse Class R kit rated for 600V AC, designed for disconnect switch size 30 A. 3G Electric interprets your demand for this specific OEM component, sourcing it…

SKU 3G-OTH-24875

Brand
SQUARE D
Item
Fuse Rejection Kit: UL Fuse Class R, 600V AC
Category
Fuse Kits
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Technical Specifications

SQUARE D
Manufacturer Part Number
RFK03H
Type
For Disconnect Switch Size 30 A
AC
600V
View Full Spec Sheet

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

Product Description

The SQUARE D Fuse Rejection Kit (MPN RFK03H) is a UL Fuse Class R kit rated for 600V AC, designed for disconnect switch size 30 A. 3G Electric interprets your demand for this specific OEM component, sourcing it across our 14 industrial departments and supplying far more than is listed, with specialist depth in electrical controls as an authorised distributor.

Frequently Asked Questions

What is the SQUARE D RFK03H fuse rejection kit used for?

The SQUARE D RFK03H fuse rejection kit is used to convert a disconnect switch to accept Class R fuses, preventing insertion of lower-voltage or lower-interrupting-rated fuses. It is designed for 30 A disconnect switches rated up to 600V AC, enhancing safety in industrial power distribution panels.

What are the specifications of the SQUARE D RFK03H fuse rejection kit?

The SQUARE D RFK03H is a UL Class R fuse rejection kit rated for 600V AC. It is designed for use with disconnect switches sized for 30 A. The manufacturer part number is RFK03H, and it is a SQUARE D brand product. This kit ensures proper fuse class compatibility in industrial electrical systems.

Where to buy the SQUARE D RFK03H fuse rejection kit worldwide?

You can source the SQUARE D RFK03H fuse rejection kit through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide reliable sourcing for this SQUARE D component.

How to install the SQUARE D RFK03H fuse rejection kit?

To install the SQUARE D RFK03H fuse rejection kit, first de-energize the disconnect switch and verify it is sized for 30 A. Remove the existing fuse holders, then insert the rejection kit components per the manufacturer's instructions. Ensure the kit aligns with Class R fuse dimensions. Always follow lockout/tagout procedures 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 fuse kits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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