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BUSSMANN FRN-R-70 Time-Delay Blade Fuse - Time-Delay Blade Fuses
BUSSMANNTime-Delay Blade Fuses

BUSSMANN FRN-R-70 Time-Delay Blade Fuse

The BUSSMANN FRN-R-70 is a Class RK5 time-delay blade fuse from the FRN-R Series, rated at 70 A with 250 V AC and 125 V DC capacity. This non-indicating fuse is designed for overcurrent protection in industrial…

SKU 3G-OTH-26074

Also listed as: FRNR70 · FRN R 70

Brand
BUSSMANN
Item
FRN-R-70 Time-Delay Blade Fuse
Part Number
FRN-R-70
Category
Time-Delay Blade Fuses
Available to Order
Also known as:FRN-R-70BUSSMANN
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Technical Specifications

BUSSMANN
Manufacturer Part Number
FRN-R-70
Series
FRN-R
Type
FRN-R Series, Time-Delay, 70 A, Non-Indicating
AC
250 V
DC
125 V

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

Product Description

The BUSSMANN FRN-R-70 is a Class RK5 time-delay blade fuse from the FRN-R Series, rated at 70 A with 250 V AC and 125 V DC capacity. This non-indicating fuse is designed for overcurrent protection in industrial electrical systems, supporting time-delay operation to accommodate inrush currents.

Frequently Asked Questions

What is the BUSSMANN FRN-R-70 fuse used for?

The BUSSMANN FRN-R-70 is a Class RK5 time-delay fuse rated 70 A, 250 V AC / 125 V DC. It protects motor circuits, feeders, and branch circuits against overloads and short circuits. Its time-delay characteristic allows it to withstand harmless inrush currents from motors and transformers without nuisance opening.

What are the specifications of the BUSSMANN FRN-R-70 fuse?

The BUSSMANN FRN-R-70 is a Class RK5, time-delay, non-indicating fuse rated 70 A, 250 V AC and 125 V DC. It belongs to the FRN-R series and is manufactured under MPN FRN-R-70. It is designed for overcurrent protection in industrial power distribution and motor control applications.

Where to buy BUSSMANN FRN-R-70 fuses worldwide?

3G Electric supplies the BUSSMANN FRN-R-70 fuse worldwide. As a global industrial equipment distributor since 1990, 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 international destination.

How to select the correct BUSSMANN FRN-R fuse for an application?

To select the correct BUSSMANN FRN-R fuse, match the voltage rating (250 V AC or 125 V DC) and current rating (70 A for FRN-R-70) to your circuit requirements. Ensure the Class RK5 time-delay characteristic suits motor or transformer loads. Consult the manufacturer's data sheet for interrupting rating and coordination with upstream devices.

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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