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BUSSMANN Fuse Reducer: Fits Fuse Class RK1/RK5, For Fuse Clip Size 60 A - Fuse Reducers for Cylindrical Fuses
BUSSMANNFuse Reducers for Cylindrical Fuses

BUSSMANN Fuse Reducer: Fits Fuse Class RK1/RK5, For Fuse Clip Size 60 A

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

Brand
BUSSMANN
Item
Fuse Reducer: Fits Fuse Class RK1/RK5, For Fuse Clip Size 60 A
Category
Fuse Reducers for Cylindrical Fuses
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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 motor control centers — BUSSMANN LPT series Class T time-delay fuses for branch circuit protection
Semiconductor protection in variable frequency drives — BUSSMANN FWA series fast-acting bolt-on fuses rated 150 V AC/DC
Automotive auxiliary circuit protection — BUSSMANN CB222 series Type II circuit breakers in 12 V DC systems
Control panel overcurrent protection — BUSSMANN FNA series midget time-delay indicating fuses for instrumentation
Main feeder protection in power distribution — BUSSMANN KLU series Class L time-delay bolt-on fuses up to 650 A
Fuse replacement in existing panels — BUSSMANN S-8301-1-R fuse block accepting 3AG and other glass/ceramic fuses

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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