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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 2.5 A, 250 V AC, 125 V DC - Time-Delay Cylindrical Fuses
BUSSMANNTime-Delay Cylindrical Fuses

BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 2.5 A, 250 V AC, 125 V DC

The BUSSMANN FRN-R Series Class RK5 Time-Delay Cylindrical Fuse (MPN FRN-R-2-1/2) is a 2.5 A, non-indicating fuse rated for 250 V AC and 125 V DC. 3G Electric interprets customer demand and delivers this genuine…

SKU 3G-OTH-28977

Also listed as: FRNR212 · FRN R 2 1 2 · FRN-R-2-1-2

Brand
BUSSMANN
Item
Fuse: Class RK5, FRN-R Series, Time-Delay, 2.5 A, 250 V AC, 125 V DC
Category
Time-Delay Cylindrical Fuses
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Delivery
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-2-1/2
Series
FRN-R
Type
FRN-R Series, Time-Delay, 2.5 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 Series Class RK5 Time-Delay Cylindrical Fuse (MPN FRN-R-2-1/2) is a 2.5 A, non-indicating fuse rated for 250 V AC and 125 V DC. 3G Electric interprets customer demand and delivers this genuine industrial fuse across 14 industrial departments — and we supply far more than is listed — with specialist depth in electrical components as an authorised distributor.

Frequently Asked Questions

What is the BUSSMANN FRN-R-2-1/2 fuse used for?

The BUSSMANN FRN-R-2-1/2 is a Class RK5 time-delay fuse rated 2.5 A, 250 V AC or 125 V DC. It protects motor circuits, transformers, and lighting systems from overloads and short circuits, allowing temporary inrush currents without nuisance opening.

What are the specifications of the BUSSMANN FRN-R-2-1/2 fuse?

This BUSSMANN FRN-R series fuse is rated 2.5 A, 250 V AC and 125 V DC. It is a time-delay, non-indicating Class RK5 fuse with manufacturer part number FRN-R-2-1/2. The cylindrical design fits standard fuse holders for industrial control panels.

Where to buy BUSSMANN FRN-R-2-1/2 fuses worldwide?

3G Electric supplies BUSSMANN FRN-R-2-1/2 fuses 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.

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

Select a BUSSMANN FRN-R fuse with an amp rating 125% to 175% of the motor full-load current for time-delay coordination. Verify the voltage rating (250 V AC or 125 V DC) matches your system. The FRN-R-2-1/2 is suitable for small motors and control transformers.

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, 100 mA, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-1/10)
BUSSMANN
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, 2.8 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-2-8/10)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 2.8 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-2-8/10)
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 2.25 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-2-1/4)
BUSSMANN
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 2.25 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-2-1/4)
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)
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 150 mA, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-15/100)
BUSSMANN
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 150 mA, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-15/100)
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 500 mA, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-1/2)
BUSSMANN
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 500 mA, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-1/2)

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