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BUSSMANN FRS-R-300 Time-Delay Blade Fuse - Time-Delay Blade Fuses
BUSSMANNTime-Delay Blade Fuses

BUSSMANN FRS-R-300 Time-Delay Blade Fuse

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
FRS-R-300 Time-Delay Blade Fuse
Part Number
FRS-R-300
Category
Time-Delay Blade Fuses
Available to Order
Also known as:FRS-R-300BUSSMANN
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

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

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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.

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 drives — BUSSMANN FWC series fast-acting cylindrical fuses protect power semiconductors in AC/DC drive circuits.
Control transformers — BUSSMANN FNQ-R series time-delay fuses handle inrush currents in control power circuits.
Semiconductor protection — BUSSMANN KAC series bolt-on fuses safeguard diodes, thyristors, and IGBTs in AC-only applications.
Electrical panels — BUSSMANN FP-2, FP-3, FP-4, and FP-6 fuse pullers enable safe fuse replacement in distribution panels.
Automotive electrical systems — BUSSMANN FP-A3 fuse puller removes and installs 1/4 in and 1/2 in automotive fuses.
Power supplies — BUSSMANN FWC series fuses provide overcurrent protection in AC/DC power supply circuits.
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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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