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BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 500 A, 600 V AC, 300 V DC - Time-Delay Blade Fuses
BUSSMANNTime-Delay Blade Fuses

BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 500 A, 600 V AC, 300 V DC

The BUSSMANN FRS-R-500 is a Class RK5 time-delay blade fuse rated for 500 A, 600 V AC and 300 V DC. Part of the FRS-R Series, this non-indicating fuse is designed for overcurrent protection in industrial electrical…

SKU 3G-OTH-28480

Also listed as: FRSR500 · FRS R 500

Brand
BUSSMANN
Item
Fuse: Class RK5, FRS-R Series, Time-Delay, 500 A, 600 V AC, 300 V DC
Category
Time-Delay Blade Fuses
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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

BUSSMANN
Manufacturer Part Number
FRS-R-500
Series
FRS-R
Type
FRS-R Series, Time-Delay, 500 A, Non-Indicating
AC
600 V
DC
300 V

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

Product Description

The BUSSMANN FRS-R-500 is a Class RK5 time-delay blade fuse rated for 500 A, 600 V AC and 300 V DC. Part of the FRS-R Series, this non-indicating fuse is designed for overcurrent protection in industrial electrical systems.

Frequently Asked Questions

What is the BUSSMANN FRS-R-500 fuse used for?

The BUSSMANN FRS-R-500 is a Class RK5 time-delay fuse rated 500 A, 600 V AC, and 300 V DC. It protects industrial motor circuits, transformers, and other equipment with high inrush currents. Its time-delay characteristic prevents nuisance opening during startup while providing reliable overcurrent protection.

What are the specifications of the BUSSMANN FRS-R-500 fuse?

The BUSSMANN FRS-R-500 is a Class RK5, time-delay, non-indicating blade fuse. It is rated 500 A, 600 V AC, and 300 V DC. The series is FRS-R, and the manufacturer part number is FRS-R-500. It is designed for industrial overcurrent protection applications.

Where to buy the BUSSMANN FRS-R-500 fuse worldwide?

You can source the BUSSMANN FRS-R-500 fuse 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 competitive sourcing for BUSSMANN fuses.

How to select the correct BUSSMANN FRS-R fuse for an application?

To select the correct BUSSMANN FRS-R fuse, match the voltage rating (600 V AC or 300 V DC) and current rating (500 A for the FRS-R-500) to your circuit requirements. Ensure the Class RK5 time-delay characteristic suits motor or transformer inrush. Consult the manufacturer's data sheet for coordination and interrupting rating.

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 time-delay blade fuses. 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
BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 600 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-600)
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BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 600 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-600)
BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 250 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-250)
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BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 250 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-250)
BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 350 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-350)
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BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 350 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-350)
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BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 75 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-75)
BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 110 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-110)
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BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 110 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-110)
BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 400 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-400)
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BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 400 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-400)

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