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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 12 A, 250 V AC, 125 V DC - Time-Delay Cylindrical Fuses
BUSSMANNTime-Delay Cylindrical Fuses

BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 12 A, 250 V AC, 125 V DC

The BUSSMANN FRN-R-12 is a Class RK5, time-delay cylindrical fuse from the FRN-R Series, rated 12 A at 250 V AC and 125 V DC, non-indicating. 3G Electric interprets your demand for overcurrent protection and sources…

SKU 3G-OTH-28605

Brand
BUSSMANN
Item
Fuse: Class RK5, FRN-R Series, Time-Delay, 12 A, 250 V AC, 125 V DC
Category
Time-Delay Cylindrical Fuses
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Technical Specifications

BUSSMANN
Manufacturer Part Number
FRN-R-12
Series
FRN-R
Type
FRN-R Series, Time-Delay, 12 A, Non-Indicating
AC
250 V
DC
125 V
View Full Spec Sheet

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

Product Description

The BUSSMANN FRN-R-12 is a Class RK5, time-delay cylindrical fuse from the FRN-R Series, rated 12 A at 250 V AC and 125 V DC, non-indicating. 3G Electric interprets your demand for overcurrent protection and sources this genuine BUSSMANN component across 14 industrial departments — with specialist depth in controls to support your electrical system needs.

Frequently Asked Questions

What is the BUSSMANN FRN-R-12 fuse used for?

The BUSSMANN FRN-R-12 is a Class RK5 time-delay cylindrical fuse used for motor and transformer protection in industrial power distribution. Its 12 A rating and 250 V AC / 125 V DC capacity make it suitable for branch circuits requiring high inrush tolerance without nuisance opening.

What are the specifications of the BUSSMANN FRN-R-12 fuse?

The BUSSMANN FRN-R-12 is a Class RK5, time-delay, non-indicating fuse rated 12 A, 250 V AC, and 125 V DC. It belongs to the FRN-R Series and carries MPN FRN-R-12. The time-delay feature allows it to withstand temporary overloads common in motor-start applications.

Where to buy BUSSMANN FRN-R-12 fuses worldwide?

3G Electric supplies BUSSMANN FRN-R-12 fuses worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this Class RK5 time-delay fuse to any international destination.

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

To select the correct BUSSMANN FRN-R series fuse, match the voltage rating (250 V AC or 125 V DC) and current rating (12 A for FRN-R-12) to your circuit requirements. Ensure the Class RK5 time-delay characteristic aligns with motor or transformer inrush currents. Consult the manufacturer's data sheet for coordination 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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