Send a part number, a photo, or a whole BOM — we supply it and stand behind it. EXW Singapore — collect from our office.

3G Electric
LITTELFUSE LFR25030-1S Fuse Block, 1 Pole, 250 V AC, Screw, Non-Indicating - Fuse Blocks for UL Class RK1 & RK5 Fuses
LITTELFUSEFuse Blocks for UL Class RK1 & RK5 Fuses

LITTELFUSE LFR25030-1S Fuse Block, 1 Pole, 250 V AC, Screw, Non-Indicating

The LITTELFUSE Fuse Block (MPN LFR25030-1S) is an open block design for UL Class RK1 and RK5 fuses, featuring 1 pole, 250 V AC rating, and screw-type, non-indicating terminals. 3G Electric interprets this customer…

SKU 3G-OTH-25329

Also listed as: LFR250301S · LFR25030 1S

Brand
LITTELFUSE
Item
LFR25030-1S Fuse Block, 1 Pole, 250 V AC, Screw, Non-Indicating
Part Number
LFR25030-1S
Category
Fuse Blocks for UL Class RK1 & RK5 Fuses
Available to Order
Also known as:LFR25030-1SLITTELFUSE
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.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

LITTELFUSE
Manufacturer Part Number
LFR25030-1S
Type
Screw, Non-Indicating
AC
250 V
Pole
1

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

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

Product Description

The LITTELFUSE Fuse Block (MPN LFR25030-1S) is an open block design for UL Class RK1 and RK5 fuses, featuring 1 pole, 250 V AC rating, and screw-type, non-indicating terminals. 3G Electric interprets this customer demand and sources genuine industrial equipment across 14 departments, with specialist depth in combustion, pumps, and controls as an authorised distributor for brands like Schneider, ABB, Siemens, SKF, Festo, Fluke, Interpump, and FBR.

Frequently Asked Questions

What is a Littelfuse LFR25030-1S fuse block used for?

The Littelfuse LFR25030-1S is a 1-pole, 250 V AC open-block fuse holder designed for UL Class RK1 and RK5 fuses. It is used in industrial control panels, motor protection circuits, and power distribution systems where reliable overcurrent protection is required. The screw-type terminals simplify wiring in maintenance and OEM applications.

What are the specifications of the Littelfuse LFR25030-1S fuse block?

The Littelfuse LFR25030-1S is a 1-pole, 250 V AC open-block design with screw-type terminals and non-indicating operation. It accepts UL Class RK1 and RK5 fuses. The manufacturer part number is LFR25030-1S. This block is suitable for branch-circuit protection in industrial equipment and control panels.

Where to buy a Littelfuse LFR25030-1S fuse block worldwide?

3G Electric supplies the Littelfuse LFR25030-1S fuse block to customers worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote and lead time on this 1-pole, 250 V AC open-block design for UL Class RK1 and RK5 fuses.

How do you select the right Littelfuse fuse block for your application?

To select the correct Littelfuse fuse block like the LFR25030-1S, match the voltage rating (250 V AC), number of poles (1), and fuse class (UL RK1/RK5) to your circuit requirements. Ensure the screw terminal size accommodates your wire gauge. For high-vibration environments, consider a closed-block design. Always verify the interrupting rating with your system's available fault current.

Used in

Common applications for LITTELFUSE
Industrial drives — Littelfuse PSR series semiconductor fuses for overcurrent protection of variable-frequency drives and DC bus circuits.
Branch circuit protection — Littelfuse CCMR series time-delay fuses in control panels and distribution boards.
Compact equipment — Littelfuse SLC series Class G fuses in rejection-style holders for space-constrained branch circuits.
Main service entrance — Littelfuse KLPC series Class L bolt-on fuses for high-current industrial power distribution.
Motor circuits — Littelfuse FLSR series Class RK5 time-delay fuses for motor branch circuits and transformers.
Power supplies — Littelfuse 473 series axial-lead time-delay fuses for solder-in protection in power supplies and instrumentation.
Not sure this is the right part? Photo-identify it→

LITTELFUSE Products

3G Electric supplies LITTELFUSE fuse blocks for ul class rk1 & rk5 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 →

More from LITTELFUSE

View all LITTELFUSE parts →
Single-pole open-style fuse block rated 600 V AC with box lug terminals and non-indicating design. Accepts UL Class RK1 and RK5 fuses. Used in industrial electrical panels for overcurrent protection
LITTELFUSE
Single-pole open-style fuse block rated 600 V AC with box lug terminals and non-indicating design. Accepts UL Class RK1 and RK5 fuses. Used in industrial electrical panels for overcurrent protection

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first