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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 70 A, 250 V AC, 125 V DC - Time-Delay Blade Fuses
BUSSMANNTime-Delay Blade Fuses

BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 70 A, 250 V AC, 125 V DC

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
Fuse: Class RK5, FRN-R Series, Time-Delay, 70 A, 250 V AC, 125 V DC
Category
Time-Delay Blade Fuses
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Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

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

Technical Documents

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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 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 80 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-80)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 80 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-80)
BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 70 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-70)
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BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 70 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-70)
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 90 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-90)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 90 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-90)
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 250 A, 250 V AC, 250 V DC, Non-Indicating (MPN FRN-R-250)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 250 A, 250 V AC, 250 V DC, Non-Indicating (MPN FRN-R-250)
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 400 A, 250 V AC, 250 V DC, Non-Indicating (MPN FRN-R-400)
BUSSMANN
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 400 A, 250 V AC, 250 V DC, Non-Indicating (MPN FRN-R-400)
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 75 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-75)
BUSSMANN
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 75 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-75)

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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 100 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-100)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 100 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-100)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 300 A, 250 V AC, 250 V DC, Non-Indicating (MPN FRN-R-300)
BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 150 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-150)
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BUSSMANN Fuse: Class RK5, FRN-R Series, Time-Delay, 150 A, 250 V AC, 125 V DC, Non-Indicating (MPN FRN-R-150)
BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 450 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-450)
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BUSSMANN Fuse: Class RK5, FRS-R Series, Time-Delay, 450 A, 600 V AC, 300 V DC, Non-Indicating (MPN FRS-R-450)
BUSSMANN Fuse: Class RK1, LPS-RK-SP Series, Time-Delay, 600 A, 600 V AC, 300 V DC, Non-Indicating (MPN LPS-RK-600SP)
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BUSSMANN Fuse: Class RK1, LPS-RK-SP Series, Time-Delay, 600 A, 600 V AC, 300 V DC, Non-Indicating (MPN LPS-RK-600SP)