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BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 45 A, 600 V AC, 250 V DC - Time-Delay Cylindrical Fuses
BUSSMANNTime-Delay Cylindrical Fuses

BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 45 A, 600 V AC, 250 V DC

The BUSSMANN Fuse: Class RK5 is a time-delay cylindrical fuse from the FRS-R Series, rated at 45 A, 600 V AC and 250 V DC, non-indicating (MPN FRS-R-45). As a Class RK5 time-delay fuse, it provides overcurrent…

SKU 3G-OTH-26137

Also listed as: FRSR45 · FRS R 45

Brand
BUSSMANN
Item
Fuse: Class RK5, FRS-R Series, Time-Delay, 45 A, 600 V AC, 250 V DC
Category
Time-Delay Cylindrical Fuses
Available to Order
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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

BUSSMANN
Manufacturer Part Number
FRS-R-45
Series
FRS-R
Type
FRS-R Series, Time-Delay, 45 A, Non-Indicating
AC
600 V
DC
250 V

Technical Documents

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

Product Description

The BUSSMANN Fuse: Class RK5 is a time-delay cylindrical fuse from the FRS-R Series, rated at 45 A, 600 V AC and 250 V DC, non-indicating (MPN FRS-R-45). As a Class RK5 time-delay fuse, it provides overcurrent protection for industrial equipment. 3G Electric interprets your demand and sources this BUSSMANN fuse across 14 industrial departments — with specialist depth in electrical components — ensuring you get the right part, quoted and supported.

Frequently Asked Questions

What is the BUSSMANN FRS-R-45 fuse used for?

The BUSSMANN FRS-R-45 is a Class RK5 time-delay cylindrical fuse rated 45 A, 600 V AC, and 250 V DC. It is used for motor branch-circuit protection, feeder circuits, and other industrial applications requiring high inrush current tolerance without nuisance opening.

What are the specifications of the BUSSMANN FRS-R-45 fuse?

The BUSSMANN FRS-R-45 is a Class RK5, time-delay, non-indicating fuse rated 45 A, 600 V AC, and 250 V DC. It belongs to the FRS-R series and is manufactured under MPN FRS-R-45. It is designed for overcurrent protection in industrial power systems.

Where to buy BUSSMANN FRS-R-45 fuses worldwide?

BUSSMANN FRS-R-45 fuses are available to order through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact 3G Electric for pricing and lead time on this BUSSMANN fuse.

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 250 V DC) and current rating (45 A) to your circuit requirements. The time-delay feature accommodates motor-starting inrush. Always verify Class RK5 rejection clips are used in the fuse holder for proper fit.

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 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 5.6 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-5-6/10)
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BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 5.6 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-5-6/10)
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BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 200 mA, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-2/10)
BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 4.5 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-4-1/2)
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BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 4.5 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-4-1/2)

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