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BUSSMANN FRN-R-7-1/2 Time-Delay Cylindrical Fuse - Time-Delay Cylindrical Fuses
BUSSMANNTime-Delay Cylindrical Fuses

BUSSMANN FRN-R-7-1/2 Time-Delay Cylindrical Fuse

The BUSSMANN FRN-R Series Class RK5 Time-Delay Cylindrical Fuse (MPN FRN-R-7-1/2) is a 7.5 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-28625

Also listed as: FRNR712 · FRN R 7 1 2 · FRN-R-7-1-2

Brand
BUSSMANN
Item
FRN-R-7-1/2 Time-Delay Cylindrical Fuse
Category
Time-Delay Cylindrical Fuses
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Delivery
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Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

BUSSMANN
Manufacturer Part Number
FRN-R-7-1/2
Series
FRN-R
Type
FRN-R Series, Time-Delay, 7.5 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-7-1/2) is a 7.5 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 — with specialist depth in electrical components as an authorised distributor.

Frequently Asked Questions

What is the BUSSMANN FRN-R-7-1/2 fuse used for?

The BUSSMANN FRN-R-7-1/2 is a Class RK5 time-delay fuse rated 7.5 A, 250 V AC / 125 V DC. It protects motor circuits, transformers, and lighting panels from overloads and short circuits. Its time-delay characteristic allows harmless inrush currents without nuisance opening, making it ideal for industrial and commercial power distribution.

What are the specifications of the BUSSMANN FRN-R-7-1/2 fuse?

The BUSSMANN FRN-R-7-1/2 is a Class RK5, time-delay, non-indicating cylindrical fuse. It is rated 7.5 A, 250 V AC and 125 V DC. The series is FRN-R, and the manufacturer part number is FRN-R-7-1/2. It provides branch-circuit protection for motor and transformer applications.

Where to buy BUSSMANN FRN-R-7-1/2 fuses worldwide?

3G Electric supplies BUSSMANN FRN-R-7-1/2 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 genuine BUSSMANN components to any country.

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 (7.5 A), and the need for time-delay to handle motor inrush. Verify the Class RK5 rejection feature fits your fuse holder. Always consult the equipment nameplate and local electrical codes to ensure proper coordination.

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)
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)
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 50 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-50ID)
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BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 50 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-50ID)
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)
Class RK5 time-delay cylindrical fuse rated 1.6 A, 250 V AC, and 125 V DC. Non-indicating design from the FRN-R Series. Used for overcurrent protection in industrial electrical systems, including motor and transformer circuits in control panels and distribution equipment
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Class RK5 time-delay cylindrical fuse rated 1.6 A, 250 V AC, and 125 V DC. Non-indicating design from the FRN-R Series. Used for overcurrent protection in industrial electrical systems, including motor and transformer circuits in control panels and distribution equipment
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 1.125 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-1-1/8)
BUSSMANN
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 1.125 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-1-1/8)

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