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BUSSMANN NO.663-R Fuse Reducer for Cylindrical Fuses, 60 A Clip Size - Fuse Reducers for Cylindrical Fuses
BUSSMANNFuse Reducers for Cylindrical Fuses

BUSSMANN NO.663-R Fuse Reducer for Cylindrical Fuses, 60 A Clip Size

The BUSSMANN Fuse Reducer (MPN NO.663-R) is a fuse reducer for cylindrical fuses, designed to fit fuse class RK1/RK5. It accommodates a fuse clip size of 60 A with a minimum fuse size of 0 A. This component enables…

SKU 3G-OTH-25293

Also listed as: NO663R · NO 663 R · NO-663-R

Brand
BUSSMANN
Item
NO.663-R Fuse Reducer for Cylindrical Fuses, 60 A Clip Size
Part Number
NO.663-R
Category
Fuse Reducers for Cylindrical Fuses
Available to Order
Also known as:NO.663-RBUSSMANN
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Technical Specifications

BUSSMANN
Manufacturer Part Number
NO.663-R
Type
For Fuse Clip Size 60 A, Min. Fuse Size 0 A

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

Product Description

The BUSSMANN Fuse Reducer (MPN NO.663-R) is a fuse reducer for cylindrical fuses, designed to fit fuse class RK1/RK5. It accommodates a fuse clip size of 60 A with a minimum fuse size of 0 A. This component enables the use of smaller fuses in larger fuse clips, supporting flexible circuit protection configurations.

Frequently Asked Questions

What is a BUSSMANN fuse reducer used for?

A BUSSMANN fuse reducer adapts a larger fuse clip to accept a smaller fuse, enabling flexible circuit protection. It fits Class RK1/RK5 fuses in 60 A clips and accommodates fuses as small as 0 A. This is common in industrial panels where fuse sizes vary.

What are the specifications of the BUSSMANN NO.663-R fuse reducer?

The BUSSMANN NO.663-R is a fuse reducer for cylindrical fuses, fitting fuse class RK1/RK5. It is designed for fuse clip size 60 A and accepts a minimum fuse size of 0 A. The manufacturer part number is NO.663-R, and it is made by BUSSMANN.

Where to buy BUSSMANN NO.663-R fuse reducers worldwide?

You can source BUSSMANN NO.663-R fuse reducers through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead times.

How to install a BUSSMANN fuse reducer?

To install a BUSSMANN fuse reducer, first ensure power is off. Insert the reducer into the 60 A fuse clip, aligning it with the clip contacts. Then insert the smaller fuse into the reducer. Verify proper fit and torque per manufacturer guidelines. Always follow lockout/tagout procedures.

Used in

Common applications for BUSSMANN
Industrial drives — BUSSMANN FWC series fast-acting cylindrical fuses protect power semiconductors in AC/DC drive circuits.
Control transformers — BUSSMANN FNQ-R series time-delay fuses handle inrush currents in control power circuits.
Semiconductor protection — BUSSMANN KAC series bolt-on fuses safeguard diodes, thyristors, and IGBTs in AC-only applications.
Electrical panels — BUSSMANN FP-2, FP-3, FP-4, and FP-6 fuse pullers enable safe fuse replacement in distribution panels.
Automotive electrical systems — BUSSMANN FP-A3 fuse puller removes and installs 1/4 in and 1/2 in automotive fuses.
Power supplies — BUSSMANN FWC series fuses provide overcurrent protection in AC/DC power supply circuits.
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BUSSMANN Products

3G Electric supplies BUSSMANN fuse reducers for cylindrical fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Fuse reducer designed to adapt smaller cylindrical fuses for use in larger fuse clips. Rated for 600 V AC and fits fuse clip size 100 A with a minimum fuse size of 0 A. Allows installation of a lower-rated fuse in an existing clip without replacing the fuse block, commonly used in industrial control panels and distribution boards
BUSSMANN
Fuse reducer designed to adapt smaller cylindrical fuses for use in larger fuse clips. Rated for 600 V AC and fits fuse clip size 100 A with a minimum fuse size of 0 A. Allows installation of a lower-rated fuse in an existing clip without replacing the fuse block, commonly used in industrial control panels and distribution boards

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