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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 75 A, 250 V AC, 125 V DC - Time-Delay Blade Fuses
BUSSMANNTime-Delay Blade Fuses

BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 75 A, 250 V AC, 125 V DC

The BUSSMANN FRN-R-75 is a Class RK5 time-delay blade fuse from the FRN-R Series, rated at 75 A with 250 V AC and 125 V DC capacity. This non-indicating fuse is designed for overcurrent protection in industrial…

SKU 3G-OTH-26162

Also listed as: FRNR75 · FRN R 75

Brand
BUSSMANN
Item
Fuse: Class RK5, FRN-R Series, Time-Delay, 75 A, 250 V AC, 125 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
FRN-R-75
Series
FRN-R
Type
FRN-R Series, Time-Delay, 75 A, Non-Indicating
AC
250 V
DC
125 V

Technical Documents

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

Product Description

The BUSSMANN FRN-R-75 is a Class RK5 time-delay blade fuse from the FRN-R Series, rated at 75 A with 250 V AC and 125 V DC capacity. This non-indicating fuse is designed for overcurrent protection in industrial electrical systems.

Frequently Asked Questions

What is the BUSSMANN FRN-R-75 fuse used for?

The BUSSMANN FRN-R-75 is a Class RK5 time-delay fuse rated 75 A at 250 V AC or 125 V DC. It protects motors, transformers, and lighting circuits from overloads and short circuits, allowing harmless inrush currents without nuisance opening.

What are the specifications of the BUSSMANN FRN-R-75 fuse?

The BUSSMANN FRN-R-75 is a non-indicating, time-delay blade fuse from the FRN-R series. It is rated 75 A, 250 V AC, and 125 V DC. The manufacturer part number is FRN-R-75. It is designed for Class RK5 applications requiring high interrupting capacity.

Where to buy BUSSMANN FRN-R-75 fuses worldwide?

3G Electric supplies the BUSSMANN FRN-R-75 fuse to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this Class RK5 time-delay fuse rated 75 A at 250 V AC.

How to select the correct BUSSMANN FRN-R series fuse for a motor circuit?

For motor circuits, select a time-delay fuse like the BUSSMANN FRN-R series to handle startup inrush. Match the fuse amp rating (e.g., 75 A for the FRN-R-75) to 125-150% of motor full-load current. Verify voltage rating (250 V AC or 125 V DC) meets system requirements.

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, FRN-R Series, Time-Delay, 175 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-175)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 175 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-175)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 225 A, 250 V AC, 250 V DC, Non-Indicating (MPN FRN-R-225)
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 250 A, 250 V AC, 250 V DC, Non-Indicating (MPN FRN-R-250)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 250 A, 250 V AC, 250 V DC, Non-Indicating (MPN FRN-R-250)
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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, FRN-R Series, Time-Delay, 350 A, 250 V AC, 250 V DC, Non-Indicating (MPN FRN-R-350)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 350 A, 250 V AC, 250 V DC, Non-Indicating (MPN FRN-R-350)
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 450 A, 250 V AC, 250 V DC, Non-Indicating (MPN FRN-R-450)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 450 A, 250 V AC, 250 V DC, Non-Indicating (MPN FRN-R-450)

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