We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 4 A, 250 V AC, 125 V DC - Time-Delay Cylindrical Fuses
BUSSMANNTime-Delay Cylindrical Fuses

BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 4 A, 250 V AC, 125 V DC

The BUSSMANN FRN-R-4 is a Class RK5, time-delay cylindrical fuse from the FRN-R Series, rated 4 A at 250 V AC and 125 V DC, non-indicating. 3G Electric interprets your demand for this OEM-specified overcurrent…

SKU 3G-OTH-28681

Also listed as: FRNR4 · FRN R 4

Brand
BUSSMANN
Item
Fuse: Class RK5, FRN-R Series, Time-Delay, 4 A, 250 V AC, 125 V DC
Category
Time-Delay Cylindrical Fuses
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Technical specs
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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-4
Series
FRN-R
Type
FRN-R Series, Time-Delay, 4 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-4 is a Class RK5, time-delay cylindrical fuse from the FRN-R Series, rated 4 A at 250 V AC and 125 V DC, non-indicating. 3G Electric interprets your demand for this OEM-specified overcurrent protection component, sourcing it across 14 industrial departments — with specialist depth in controls to support your electrical system requirements.

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-4 fuse used for?

The BUSSMANN FRN-R-4 is a Class RK5 time-delay fuse rated 4 A, 250 V AC / 125 V DC. It protects motor circuits, lighting, and control transformers against short circuits and sustained overloads. Its time-delay characteristic prevents nuisance opening during inrush currents, making it suitable for industrial and commercial power distribution.

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

The BUSSMANN FRN-R-4 is a Class RK5, time-delay, non-indicating cylindrical fuse. It is rated 4 A, 250 V AC and 125 V DC. It belongs to the FRN-R series and is manufactured under part number FRN-R-4. It provides branch-circuit protection with a 200 kA interrupting rating at rated voltage.

Where to buy BUSSMANN FRN-R-4 fuses worldwide?

3G Electric supplies BUSSMANN FRN-R-4 fuses worldwide. As a global industrial solutions provider, 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. We source genuine BUSSMANN components for industrial maintenance and OEM applications.

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

Select a BUSSMANN FRN-R series fuse by matching the voltage (250 V AC or 125 V DC) and current rating (e.g., 4 A for the FRN-R-4) to the motor full-load amps. Use the time-delay characteristic to handle startup inrush without nuisance tripping. Always consult the motor nameplate and local code for proper sizing.

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, 1.25 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-1-1/4)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 1.25 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-1-1/4)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 1.8 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-1-8/10)

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