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

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

The BUSSMANN FRN-R-1/4 is a Class RK5, time-delay cylindrical fuse from the FRN-R Series, rated at 250 mA with 250 V AC and 125 V DC capacity. It is non-indicating, designed for overcurrent protection in industrial…

SKU 3G-OTH-26108

Also listed as: FRNR14 · FRN R 1 4 · FRN-R-1-4

Brand
BUSSMANN
Item
Fuse: Class RK5, FRN-R Series, Time-Delay, 250 mA, 250 V AC, 125 V DC
Category
Time-Delay Cylindrical Fuses
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

BUSSMANN
Manufacturer Part Number
FRN-R-1/4
Series
FRN-R
Type
FRN-R Series, Time-Delay, 250 mA, 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-1/4 is a Class RK5, time-delay cylindrical fuse from the FRN-R Series, rated at 250 mA with 250 V AC and 125 V DC capacity. It is non-indicating, designed for overcurrent protection in industrial circuits requiring a time-delay characteristic.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the BUSSMANN FRN-R-1/4 fuse used for?

The BUSSMANN FRN-R-1/4 is a Class RK5 time-delay cylindrical fuse rated 250 mA, 250 V AC, and 125 V DC. It protects motor circuits, transformers, and other inductive loads from overcurrent while tolerating harmless inrush currents. Common in industrial control panels and HVAC equipment.

What are the specifications of the BUSSMANN FRN-R-1/4 fuse?

The BUSSMANN FRN-R-1/4 is a Class RK5, FRN-R Series, time-delay, non-indicating fuse. It is rated 250 mA, 250 V AC, and 125 V DC. The manufacturer part number is FRN-R-1/4. It provides branch-circuit protection for motor and transformer applications.

Where to buy the BUSSMANN FRN-R-1/4 fuse worldwide?

3G Electric supplies the BUSSMANN FRN-R-1/4 fuse worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source genuine BUSSMANN components for industrial maintenance and OEM needs.

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

Select a BUSSMANN FRN-R series fuse based on motor full-load current and starting characteristics. The time-delay feature allows temporary inrush without nuisance opening. For a 250 mA motor, the FRN-R-1/4 is appropriate. Always verify voltage rating (250 V AC) and interrupting rating per NEC guidelines.

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, 125 mA, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-1/8)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 125 mA, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-1/8)
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
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 4.5 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-4-1/2)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 4.5 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-4-1/2)
Class RK5 time-delay cylindrical fuse rated 3.5 A, 250 V AC and 125 V DC. Non-indicating type from the FRN-R Series. Provides overcurrent protection for motor and transformer circuits, lighting, and branch circuits where inrush currents are present
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Class RK5 time-delay cylindrical fuse rated 3.5 A, 250 V AC and 125 V DC. Non-indicating type from the FRN-R Series. Provides overcurrent protection for motor and transformer circuits, lighting, and branch circuits where inrush currents are present
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 Series, Time-Delay, 35 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-35)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 35 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-35)

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