We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 20 A, 250 V AC, 125 V DC - Time-Delay Cylindrical Fuses
BUSSMANNTime-Delay Cylindrical Fuses

BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 20 A, 250 V AC, 125 V DC

The BUSSMANN FRN-R-20ID is a Class RK5, time-delay cylindrical fuse from the FRN-R-ID Series, rated 20 A at 250 V AC and 125 V DC with an indicating feature. 3G Electric interprets your demand for this specific OEM…

SKU 3G-OTH-25670

Also listed as: FRNR20ID · FRN R 20ID

Brand
BUSSMANN
Item
Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 20 A, 250 V AC, 125 V DC
Category
Time-Delay Cylindrical Fuses
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

BUSSMANN
Manufacturer Part Number
FRN-R-20ID
Series
FRN-R-ID
Type
FRN-R-ID Series, Time-Delay, 20 A, Indicating
AC
250 V
DC
125 V

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The BUSSMANN FRN-R-20ID is a Class RK5, time-delay cylindrical fuse from the FRN-R-ID Series, rated 20 A at 250 V AC and 125 V DC with an indicating feature. 3G Electric interprets your demand for this specific OEM part and delivers it across 14 industrial departments, with specialist depth in electrical components as an authorised distributor.

Frequently Asked Questions

What is the BUSSMANN FRN-R-20ID fuse used for?

The BUSSMANN FRN-R-20ID is a Class RK5 time-delay fuse used for motor and transformer protection in industrial electrical panels. Its indicating feature allows quick identification of a blown fuse, reducing downtime in manufacturing and process control applications.

What are the specifications of the BUSSMANN FRN-R-20ID fuse?

The BUSSMANN FRN-R-20ID is a Class RK5, time-delay cylindrical fuse rated 20 A, 250 V AC, and 125 V DC. It is part of the FRN-R-ID series and features an indicating function. The manufacturer part number is FRN-R-20ID.

Where to buy BUSSMANN FRN-R-20ID fuses worldwide?

3G Electric supplies BUSSMANN FRN-R-20ID fuses worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this indicating Class RK5 fuse.

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

Select the BUSSMANN FRN-R-ID fuse based on the circuit's continuous current (20 A for the FRN-R-20ID), voltage rating (250 V AC or 125 V DC), and the need for time-delay to handle inrush currents from motors or transformers. The indicating feature helps with troubleshooting.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 25 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-25ID)
BUSSMANN
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 25 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-25ID)
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 40 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-40ID)
BUSSMANN
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 40 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-40ID)
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 50 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-50ID)
BUSSMANN
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 50 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-50ID)
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 10 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-10ID)
BUSSMANN
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 10 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-10ID)
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 35 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-35ID)
BUSSMANN
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 35 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-35ID)
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 8 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-8ID)
BUSSMANN
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 8 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-8ID)

More from BUSSMANN

View all BUSSMANN parts
Fuse: FNQ-R Series, Time-Delay, 1.3 A, 600 V AC, Non-Indicating, 13/32 in x 1 1/2 in (MPN FNQ-R-1-3/10)
BUSSMANN
Fuse: FNQ-R Series, Time-Delay, 1.3 A, 600 V AC, Non-Indicating, 13/32 in x 1 1/2 in (MPN FNQ-R-1-3/10)
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 45 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-45ID)
BUSSMANN
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 45 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-45ID)
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 30 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-30ID)
BUSSMANN
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 30 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-30ID)
BUSSMANN Fuse: FNQ Series, Midget, Time-Delay, 125 mA, 500 V AC, 13/32 in x 1 1/2 in, Non-Indicating (MPN FNQ-1/8)
BUSSMANN
BUSSMANN Fuse: FNQ Series, Midget, Time-Delay, 125 mA, 500 V AC, 13/32 in x 1 1/2 in, Non-Indicating (MPN FNQ-1/8)
BUSSMANN Fuse: FNM Series, Midget, Time-Delay, 30 A, 250 V AC, 13/32 in x 1 1/2 in, Non-Indicating (MPN FNM-30)
BUSSMANN
BUSSMANN Fuse: FNM Series, Midget, Time-Delay, 30 A, 250 V AC, 13/32 in x 1 1/2 in, Non-Indicating (MPN FNM-30)
BUSSMANN Fuse: S505 Series, Time-Delay, 800 mA, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S505-800-R)
BUSSMANN
BUSSMANN Fuse: S505 Series, Time-Delay, 800 mA, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S505-800-R)
BUSSMANN Fuse: GMC Series, Time-Delay, 4 A, 125 V AC, 5 mm x 20 mm (MPN GMC-4-R)
BUSSMANN
BUSSMANN Fuse: GMC Series, Time-Delay, 4 A, 125 V AC, 5 mm x 20 mm (MPN GMC-4-R)
BUSSMANN Fuse: MDL Series, Time-Delay, 3.2 A, 250 V AC, 1/4 in x 1 1/4 in (MPN MDL-3-2/10-R)
BUSSMANN
BUSSMANN Fuse: MDL Series, Time-Delay, 3.2 A, 250 V AC, 1/4 in x 1 1/4 in (MPN MDL-3-2/10-R)