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BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 7.5 A, 600 V AC, 300 V DC - Time-Delay Cylindrical Fuses
BUSSMANNTime-Delay Cylindrical Fuses

BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 7.5 A, 600 V AC, 300 V DC

SKU 3G-OTH-28650

Brand
BUSSMANN
Item
Fuse: Class RK5, FRS-R Series, Time-Delay, 7.5 A, 600 V AC, 300 V DC
Category
Time-Delay Cylindrical Fuses
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Technical Specifications

BUSSMANN
Manufacturer Part Number
FRS-R-7-1/2
Series
FRS-R
Type
FRS-R Series, Time-Delay, 7.5 A, Non-Indicating
AC
600 V
DC
300 V
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Technical Documents

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

Frequently Asked Questions

What is a BUSSMANN FRS-R-7-1/2 fuse used for?

The BUSSMANN FRS-R-7-1/2 is a Class RK5 time-delay fuse rated 7.5 A, 600 V AC / 300 V DC. It protects motor circuits, transformers, and lighting panels from overloads and short circuits. Its time-delay characteristic allows it to withstand harmless inrush currents without nuisance opening.

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

This BUSSMANN FRS-R series fuse is rated 7.5 A, 600 V AC and 300 V DC. It is a non-indicating, time-delay Class RK5 fuse. The manufacturer part number is FRS-R-7-1/2. It is designed for branch-circuit protection in industrial control panels and motor starters.

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

3G Electric supplies BUSSMANN FRS-R-7-1/2 fuses to customers worldwide. As a global industrial sourcing partner, we handle 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 right BUSSMANN FRS-R fuse for a motor circuit?

To select a BUSSMANN FRS-R fuse, match the voltage rating (600 V AC / 300 V DC) and ensure the amp rating (e.g., 7.5 A) exceeds the motor full-load current. The time-delay feature handles startup inrush. 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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