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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 125 mA, 250 V AC, 125 V DC - Time-Delay Cylindrical Fuses
BUSSMANNTime-Delay Cylindrical Fuses

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

The BUSSMANN FRN-R-1/8 is a Class RK5, time-delay cylindrical fuse from the FRN-R Series, rated at 125 mA with 250 V AC and 125 V DC capacity. This non-indicating fuse is designed for overcurrent protection in…

SKU 3G-OTH-28621

Also listed as: FRNR18 · FRN R 1 8 · FRN-R-1-8

Brand
BUSSMANN
Item
Fuse: Class RK5, FRN-R Series, Time-Delay, 125 mA, 250 V AC, 125 V DC
Category
Time-Delay Cylindrical Fuses
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Technical Specifications

BUSSMANN
Manufacturer Part Number
FRN-R-1/8
Series
FRN-R
Type
FRN-R Series, Time-Delay, 125 mA, Non-Indicating
AC
250 V
DC
125 V

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

Product Description

The BUSSMANN FRN-R-1/8 is a Class RK5, time-delay cylindrical fuse from the FRN-R Series, rated at 125 mA with 250 V AC and 125 V DC capacity. This non-indicating fuse is designed for overcurrent protection in industrial circuits, sourced and supported by 3G Electric across 14 industrial departments, with specialist expertise in electrical components.

Frequently Asked Questions

What is the BUSSMANN FRN-R-1/8 fuse used for?

The BUSSMANN FRN-R-1/8 is a Class RK5 time-delay cylindrical fuse rated 125 mA, 250 V AC, 125 V DC. It protects motor circuits, transformers, and lighting systems from overcurrent while allowing harmless temporary surges. Common in industrial control panels and commercial equipment.

What are the specifications of the BUSSMANN FRN-R-1/8 fuse?

The BUSSMANN FRN-R-1/8 is a Class RK5 time-delay fuse from the FRN-R series. It is rated 125 mA, 250 V AC, 125 V DC, non-indicating. The manufacturer part number is FRN-R-1/8. It provides branch-circuit protection with a 200 kA interrupting rating.

Where to buy BUSSMANN FRN-R-1/8 fuses worldwide?

3G Electric supplies BUSSMANN FRN-R-1/8 fuses worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time. We source genuine BUSSMANN components for industrial applications.

How to select the correct BUSSMANN FRN-R fuse for my application?

Select the BUSSMANN FRN-R fuse based on voltage (250 V AC or 125 V DC), current rating (125 mA for FRN-R-1/8), and time-delay characteristics for motor starts. Verify Class RK5 rejection clips in your fuse holder. Consult the FRN-R series data sheet for coordination with downstream devices.

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, FRN-R Series, Time-Delay, 250 mA, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-1/4)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 250 mA, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-1/4)
Class RK5 time-delay cylindrical fuse rated 7.5 A at 250 V AC and 125 V DC. Non-indicating design with time-delay characteristic for motor and transformer protection. Suitable for branch-circuit protection in industrial and commercial power distribution systems
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Class RK5 time-delay cylindrical fuse rated 7.5 A at 250 V AC and 125 V DC. Non-indicating design with time-delay characteristic for motor and transformer protection. Suitable for branch-circuit protection in industrial and commercial power distribution systems
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 100 mA, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-1/10)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 100 mA, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-1/10)
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 20 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-20ID)
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BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 20 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-20ID)
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 25 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-25ID)
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BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 25 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-25ID)

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