Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
LITTELFUSE Fuse Block: Open Block Design, 3 Pole, 250 V AC, Box Lug - Fuse Blocks for UL Class RK1 & RK5 Fuses
LITTELFUSEFuse Blocks for UL Class RK1 & RK5 Fuses

LITTELFUSE Fuse Block: Open Block Design, 3 Pole, 250 V AC, Box Lug

LITTELFUSE Fuse Blocks for UL Class RK1 & RK5 Fuses.

SKU 3G-OTH-26422

Also listed as: LFR251003CID · LFR25100 3CID

Brand
LITTELFUSE
Item
Fuse Block: Open Block Design, 3 Pole, 250 V AC, Box Lug
Category
Fuse Blocks for UL Class RK1 & RK5 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 — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

LITTELFUSE
Manufacturer Part Number
LFR25100-3CID

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

LITTELFUSE Fuse Blocks for UL Class RK1 & RK5 Fuses.

Frequently Asked Questions

What is a Littelfuse LFR25100-3CID fuse block used for?

The Littelfuse LFR25100-3CID is a 3-pole open block design fuse holder for UL Class RK1 and RK5 fuses. It is used in industrial control panels, motor protection circuits, and power distribution systems requiring reliable overcurrent protection at 250 V AC with box lug terminations.

What are the specifications of the Littelfuse LFR25100-3CID?

The Littelfuse LFR25100-3CID is a 3-pole open block design fuse block rated 250 V AC. It accepts UL Class RK1 and RK5 fuses and features box lug terminals. The indicating version provides visual blown-fuse indication. Manufacturer part number LFR25100-3CID.

Where to buy a Littelfuse LFR25100-3CID fuse block worldwide?

3G Electric supplies the Littelfuse LFR25100-3CID fuse block to customers worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this and other Littelfuse circuit protection components.

How to install a Littelfuse LFR25100-3CID fuse block?

Mount the Littelfuse LFR25100-3CID on a flat surface using the integral mounting holes. Connect line and load conductors to the box lug terminals per the torque specifications on the label. Insert UL Class RK1 or RK5 fuses into each pole. Always de-energize the circuit before installation.

Used in

Common applications for LITTELFUSE
Power electronics protection — Littelfuse PSR Series semiconductor fuses for IGBT and diode protection in variable frequency drives.
Solar photovoltaic systems — Littelfuse SPF Series fast-acting fuses for string overcurrent protection in PV arrays.
Automotive electrical systems — Littelfuse MIDI® 498 Series bolt-on fuses for battery and alternator protection in vehicles.
Industrial control panels — Littelfuse KLKD Series midget fuses for branch circuit protection in control transformers and relays.
Motor control centers — Littelfuse BLF Series fast-acting fuses for short-circuit protection of motor starters and contactors.

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 →

Compatible alternatives & equivalents

Cross-referenced by specification & description
LITTELFUSE Fuse Block: Open Block Design, 3 Pole, 250 V AC, Box Lug, Non-Indicating (MPN LFR25200-3C)
LITTELFUSE
LITTELFUSE Fuse Block: Open Block Design, 3 Pole, 250 V AC, Box Lug, Non-Indicating (MPN LFR25200-3C)
LITTELFUSE Fuse Block: Open Block Design, 1 Pole, 250 V AC, Box Lug, Non-Indicating (MPN LFR25200-1C)
LITTELFUSE
LITTELFUSE Fuse Block: Open Block Design, 1 Pole, 250 V AC, Box Lug, Non-Indicating (MPN LFR25200-1C)
LITTELFUSE Fuse Block: Open Block Design, 3 Pole, 250 V AC, Box Lug, Non-Indicating (MPN LFR254003C)
LITTELFUSE
LITTELFUSE Fuse Block: Open Block Design, 3 Pole, 250 V AC, Box Lug, Non-Indicating (MPN LFR254003C)
LITTELFUSE Fuse Block: Open Block Design, 3 Pole, 250 V AC, Screw, Non-Indicating (MPN LFR25030-3S)
LITTELFUSE
LITTELFUSE Fuse Block: Open Block Design, 3 Pole, 250 V AC, Screw, Non-Indicating (MPN LFR25030-3S)
LITTELFUSE Fuse Block: Open Block Design, 3 Pole, 250 V AC, Box Lug, Non-Indicating (MPN LFR256003C)
LITTELFUSE
LITTELFUSE Fuse Block: Open Block Design, 3 Pole, 250 V AC, Box Lug, Non-Indicating (MPN LFR256003C)
LITTELFUSE Fuse Block: Open Block Design, 1 Pole, 250 V AC, Screw, Non-Indicating (MPN LFR25030-1S)
LITTELFUSE
LITTELFUSE Fuse Block: Open Block Design, 1 Pole, 250 V AC, Screw, Non-Indicating (MPN LFR25030-1S)

More from LITTELFUSE

View all LITTELFUSE parts →
3-pole open block fuse holder for UL Class RK1 and RK5 fuses. Rated 600 V AC with box lug terminals and indicating feature. Used in industrial power distribution, motor control centers, and panelboards
LITTELFUSE
3-pole open block fuse holder for UL Class RK1 and RK5 fuses. Rated 600 V AC with box lug terminals and indicating feature. Used in industrial power distribution, motor control centers, and panelboards
3-pole open block design fuse block for UL Class RK1 and RK5 fuses. Rated 600 V AC with box lug terminals, non-indicating. Used for mounting and connecting fuses in power distribution, motor control centers, and panel boards
LITTELFUSE
3-pole open block design fuse block for UL Class RK1 and RK5 fuses. Rated 600 V AC with box lug terminals, non-indicating. Used for mounting and connecting fuses in power distribution, motor control centers, and panel boards
Single-pole open block fuse holder for UL Class RK1 and RK5 fuses. Rated 250 V AC with box lug terminals and an indicating feature. Suitable for overcurrent protection in industrial control panels, motor circuits, and power distribution systems
LITTELFUSE
Single-pole open block fuse holder for UL Class RK1 and RK5 fuses. Rated 250 V AC with box lug terminals and an indicating feature. Suitable for overcurrent protection in industrial control panels, motor circuits, and power distribution systems
Two-pole open block fuse block for UL Class RK1 and RK5 fuses, rated 250 V AC. Features pressure plate terminals for secure wire connections and non-indicating design. Used in industrial control panels, motor circuits, and power distribution systems for branch circuit protection
LITTELFUSE
Two-pole open block fuse block for UL Class RK1 and RK5 fuses, rated 250 V AC. Features pressure plate terminals for secure wire connections and non-indicating design. Used in industrial control panels, motor circuits, and power distribution systems for branch circuit protection
2-pole open-block fuse block for UL Class RK1 and RK5 fuses. Rated 250 V AC with box-lug, non-indicating terminals. Used in industrial control panels, motor protection circuits, and power distribution systems to safely mount and connect cartridge fuses
LITTELFUSE
2-pole open-block fuse block for UL Class RK1 and RK5 fuses. Rated 250 V AC with box-lug, non-indicating terminals. Used in industrial control panels, motor protection circuits, and power distribution systems to safely mount and connect cartridge fuses
This LITTELFUSE fuse block is a 1-pole open block design for UL Class RK1 and RK5 fuses. Rated 250 V AC, it features box lug terminals and an indicating function. Typical applications include industrial control panels, motor protection circuits, and power distribution systems requiring overcurrent protection
LITTELFUSE
This LITTELFUSE fuse block is a 1-pole open block design for UL Class RK1 and RK5 fuses. Rated 250 V AC, it features box lug terminals and an indicating function. Typical applications include industrial control panels, motor protection circuits, and power distribution systems requiring overcurrent protection
This 2-pole open block fuse block is designed for UL Class RK1 and RK5 fuses, rated 250 V AC. It features box lug terminals for secure wiring and an indicating function that provides visual confirmation of an open fuse. Typical applications include industrial control panels, motor circuits, and power distribution systems
LITTELFUSE
This 2-pole open block fuse block is designed for UL Class RK1 and RK5 fuses, rated 250 V AC. It features box lug terminals for secure wiring and an indicating function that provides visual confirmation of an open fuse. Typical applications include industrial control panels, motor circuits, and power distribution systems
Open block design fuse block for UL Class RK1 and RK5 fuses. Rated 250 V AC with 3 poles. Features box lug terminals and an indicating function. Used in industrial electrical panels, motor control centers, and distribution boards
LITTELFUSE
Open block design fuse block for UL Class RK1 and RK5 fuses. Rated 250 V AC with 3 poles. Features box lug terminals and an indicating function. Used in industrial electrical panels, motor control centers, and distribution boards