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

BUSSMANN Fuse: Class RK1, KTN-R Series, Fast-Acting, 250 A, 250 V AC, 250 V DC - Fast-Acting Blade Fuses
BUSSMANNFast-Acting Blade Fuses

BUSSMANN Fuse: Class RK1, KTN-R Series, Fast-Acting, 250 A, 250 V AC, 250 V DC

The BUSSMANN KTN-R Series fuse is a Class RK1, fast-acting blade fuse rated for 250 A at 250 V AC and 250 V DC. This non-indicating fuse, with manufacturer part number KTN-R-250, is designed for overcurrent…

SKU 3G-OTH-26128

Also listed as: KTNR250 · KTN R 250

Brand
BUSSMANN
Item
Fuse: Class RK1, KTN-R Series, Fast-Acting, 250 A, 250 V AC, 250 V DC
Category
Fast-Acting Blade 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
KTN-R-250
Series
KTN-R
Type
KTN-R Series, Fast-Acting, 250 A, Non-Indicating
AC
250 V
DC
250 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 KTN-R Series fuse is a Class RK1, fast-acting blade fuse rated for 250 A at 250 V AC and 250 V DC. This non-indicating fuse, with manufacturer part number KTN-R-250, is designed for overcurrent protection in industrial electrical circuits.

Frequently Asked Questions

What is the BUSSMANN KTN-R-250 fuse used for?

The BUSSMANN KTN-R-250 is a Class RK1 fast-acting blade fuse rated for 250 A at 250 V AC and 250 V DC. It provides overcurrent protection in industrial electrical circuits, such as motor control centers, panelboards, and switchgear, where fast response to short circuits is required.

What are the specifications of the BUSSMANN KTN-R-250 fuse?

The BUSSMANN KTN-R-250 is a Class RK1, fast-acting, non-indicating fuse from the KTN-R series. It is rated for 250 A at 250 V AC and 250 V DC. The manufacturer part number is KTN-R-250, and it is designed for overcurrent protection in industrial applications.

Where to buy the BUSSMANN KTN-R-250 fuse worldwide?

You can source the BUSSMANN KTN-R-250 fuse through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this Class RK1 fast-acting fuse.

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

To select the correct BUSSMANN KTN-R fuse, match the voltage rating (250 V AC/DC) and current rating (250 A) to your circuit requirements. Ensure the Class RK1 fast-acting characteristic suits your overcurrent protection needs. Consult the manufacturer's data sheet for time-current curves and interrupting ratings.

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 fast-acting blade 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 RK1, KTN-R Series, Fast-Acting, 400 A, 250 V AC, 250 V DC, Non-Indicating (MPN KTN-R-400)
BUSSMANN
BUSSMANN Fuse: Class RK1, KTN-R Series, Fast-Acting, 400 A, 250 V AC, 250 V DC, Non-Indicating (MPN KTN-R-400)
BUSSMANN Fuse: Class H, NON Series, Fast-Acting, 600 A, 250 V AC, Non-Indicating (MPN NON-600)
BUSSMANN
BUSSMANN Fuse: Class H, NON Series, Fast-Acting, 600 A, 250 V AC, Non-Indicating (MPN NON-600)
BUSSMANN Fuse: Class H, NON Series, Fast-Acting, 400 A, 250 V AC, Non-Indicating (MPN NON-400)
BUSSMANN
BUSSMANN Fuse: Class H, NON Series, Fast-Acting, 400 A, 250 V AC, Non-Indicating (MPN NON-400)
BUSSMANN Fuse: Class H, NON Series, Fast-Acting, 350 A, 250 V AC, Non-Indicating (MPN NON-350)
BUSSMANN
BUSSMANN Fuse: Class H, NON Series, Fast-Acting, 350 A, 250 V AC, Non-Indicating (MPN NON-350)
BUSSMANN Fuse: Class H, NON Series, Fast-Acting, 300 A, 250 V AC, Non-Indicating (MPN NON-300)
BUSSMANN
BUSSMANN Fuse: Class H, NON Series, Fast-Acting, 300 A, 250 V AC, Non-Indicating (MPN NON-300)
Semiconductor Fuse: KAC Series, Fast-Acting, 20 A, 600 V AC, Non-Indicating (MPN KAC-20)
BUSSMANN
Semiconductor Fuse: KAC Series, Fast-Acting, 20 A, 600 V AC, Non-Indicating (MPN KAC-20)

More from BUSSMANN

View all BUSSMANN parts
BUSSMANN Fuse: Class H, NON Series, Fast-Acting, 200 A, 250 V AC, Non-Indicating (MPN NON-200)
BUSSMANN
BUSSMANN Fuse: Class H, NON Series, Fast-Acting, 200 A, 250 V AC, Non-Indicating (MPN NON-200)
BUSSMANN Fuse: Class H, NON Series, Fast-Acting, 100 A, 250 V AC, Non-Indicating (MPN NON-100)
BUSSMANN
BUSSMANN Fuse: Class H, NON Series, Fast-Acting, 100 A, 250 V AC, Non-Indicating (MPN NON-100)
Solar Fuse: PV-L Series, Fast-Acting, 630 A, 1,000 V DC (MPN PV-630A-3L)
BUSSMANN
Solar Fuse: PV-L Series, Fast-Acting, 630 A, 1,000 V DC (MPN PV-630A-3L)
BUSSMANN Fuse: Class H, NON Series, Fast-Acting, 125 A, 250 V AC, Non-Indicating (MPN NON-125)
BUSSMANN
BUSSMANN Fuse: Class H, NON Series, Fast-Acting, 125 A, 250 V AC, Non-Indicating (MPN NON-125)
Solar Fuse: PV-01XL Series, Fast-Acting, 100 A, 1,500 V DC (MPN PV-100A-01XL-15)
BUSSMANN
Solar Fuse: PV-01XL Series, Fast-Acting, 100 A, 1,500 V DC (MPN PV-100A-01XL-15)
BUSSMANN Fuse: Class H, NOS Series, Fast-Acting, 80 A, 600 V AC, Non-Indicating (MPN NOS-80)
BUSSMANN
BUSSMANN Fuse: Class H, NOS Series, Fast-Acting, 80 A, 600 V AC, Non-Indicating (MPN NOS-80)
BUSSMANN Telecom Protection Fuse: TPN Series, Fast-Acting, Blade, 80 A, 170 V DC, 1 in x 5 7/8 in (MPN TPN-80)
BUSSMANN
BUSSMANN Telecom Protection Fuse: TPN Series, Fast-Acting, Blade, 80 A, 170 V DC, 1 in x 5 7/8 in (MPN TPN-80)
Solar Fuse: PV-2XL Series, Fast-Acting, 355 A, 1,000 V DC (MPN PV-355A-2XL)
BUSSMANN
Solar Fuse: PV-2XL Series, Fast-Acting, 355 A, 1,000 V DC (MPN PV-355A-2XL)