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BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 250 A, 600 V AC, 300 V DC - Time-Delay Blade Fuses
BUSSMANNTime-Delay Blade Fuses

BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 250 A, 600 V AC, 300 V DC

The BUSSMANN FRS-R Series Fuse is a Class RK5, time-delay blade fuse rated at 250 A, 600 V AC and 300 V DC. This non-indicating fuse from the FRS-R line (MPN FRS-R-250) provides overcurrent protection for industrial…

SKU 3G-OTH-26930

Also listed as: FRSR250 · FRS R 250

Brand
BUSSMANN
Item
Fuse: Class RK5, FRS-R Series, Time-Delay, 250 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-250
Series
FRS-R
Type
FRS-R Series, Time-Delay, 250 A, Non-Indicating
AC
600 V
DC
300 V

Technical Documents

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

Product Description

The BUSSMANN FRS-R Series Fuse is a Class RK5, time-delay blade fuse rated at 250 A, 600 V AC and 300 V DC. This non-indicating fuse from the FRS-R line (MPN FRS-R-250) provides overcurrent protection for industrial equipment. 3G Electric interprets customer demand and delivers genuine industrial solutions across 14 departments, with specialist depth in combustion, pumps and controls as an authorised distributor.

Frequently Asked Questions

What is the BUSSMANN FRS-R-250 fuse used for?

The BUSSMANN FRS-R-250 is a Class RK5 time-delay fuse rated 250 A, 600 V AC, 300 V DC. It protects industrial motor circuits, transformers, and other equipment with high inrush currents. Its non-indicating design suits applications where visual blown-fuse indication is not required.

What are the specifications of the BUSSMANN FRS-R-250 fuse?

The BUSSMANN FRS-R-250 is a Class RK5 time-delay blade fuse rated 250 A, 600 V AC, 300 V DC. It belongs to the FRS-R series and is non-indicating. The manufacturer part number is FRS-R-250. It is designed for overcurrent protection in industrial power distribution systems.

Where to buy the BUSSMANN FRS-R-250 fuse worldwide?

3G Electric supplies the BUSSMANN FRS-R-250 fuse worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source and deliver genuine BUSSMANN components to any country.

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

Select the BUSSMANN FRS-R fuse based on continuous current (250 A max), system voltage (600 V AC or 300 V DC), and inrush characteristics. Time-delay fuses tolerate temporary overloads from motor starts. Verify the interrupting rating meets fault current requirements. Consult the FRS-R series datasheet for coordination curves.

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, 500 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-500)
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BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 500 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-500)
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, 75 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-75)
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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, 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)
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 500 A, 250 V AC, 250 V DC, Non-Indicating (MPN FRN-R-500)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 500 A, 250 V AC, 250 V DC, Non-Indicating (MPN FRN-R-500)
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)

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BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 150 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-150)
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BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 150 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-150)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 100 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-100)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 100 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-100)
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 110 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-110)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 110 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-110)
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 300 A, 250 V AC, 250 V DC, Non-Indicating (MPN FRN-R-300)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 300 A, 250 V AC, 250 V DC, Non-Indicating (MPN FRN-R-300)
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 150 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-150)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 150 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-150)
BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 450 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-450)
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BUSSMANN Fuse: Class RK1, LPS-RK-SP Series, Time-Delay, 600 A, 600 V AC, 300 V DC, Non-Indicating (MPN LPS-RK-600SP)
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BUSSMANN Fuse: Class RK1, LPS-RK-SP Series, Time-Delay, 600 A, 600 V AC, 300 V DC, Non-Indicating (MPN LPS-RK-600SP)