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

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

The BUSSMANN FRS-R Series Fuse is a Class RK5, time-delay blade fuse rated at 300 A, 600 V AC and 300 V DC, non-indicating (MPN FRS-R-300). As a time-delay fuse, it accommodates temporary inrush currents without…

SKU 3G-OTH-27036

Also listed as: FRSR300 · FRS R 300

Brand
BUSSMANN
Item
Fuse: Class RK5, FRS-R Series, Time-Delay, 300 A, 600 V AC, 300 V DC
Category
Time-Delay Blade Fuses
Available to Order
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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
FRS-R-300
Series
FRS-R
Type
FRS-R Series, Time-Delay, 300 A, Non-Indicating
AC
600 V
DC
300 V

Technical Documents

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

Product Description

The BUSSMANN FRS-R Series Fuse is a Class RK5, time-delay blade fuse rated at 300 A, 600 V AC and 300 V DC, non-indicating (MPN FRS-R-300). As a time-delay fuse, it accommodates temporary inrush currents without nuisance opening, making it suitable for motor and transformer circuits. 3G Electric interprets your demand for this OEM-specified protection component, sources it from BUSSMANN, and delivers it with technical support across 14 industrial departments — with specialist depth in combustion, pumps and controls.

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 FRS-R-300 fuse used for?

The BUSSMANN FRS-R-300 is a Class RK5 time-delay fuse rated 300 A, 600 V AC / 300 V DC. It protects motors, transformers, and other inductive loads from short circuits and sustained overloads in industrial power distribution and control panels.

What are the specifications of the BUSSMANN FRS-R-300 fuse?

The BUSSMANN FRS-R-300 is a non-indicating, time-delay blade fuse from the FRS-R series. It carries 300 A, 600 V AC, 300 V DC, and is Class RK5 rated. The manufacturer part number is FRS-R-300.

Where to buy the BUSSMANN FRS-R-300 fuse worldwide?

3G Electric supplies the BUSSMANN FRS-R-300 fuse to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this Class RK5 time-delay fuse.

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

Select the FRS-R fuse based on motor full-load current and starting characteristics. The time-delay feature handles inrush without nuisance opening. Verify voltage rating (600 V AC / 300 V DC) and ensure Class RK5 rejection clips are used in the fuse holder.

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 blade fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 90 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-90)
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