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 257 Series Fast-Acting Fuse - Fast-Acting Fuses
LITTELFUSEFast-Acting Fuses

LITTELFUSE 257 Series Fast-Acting Fuse

The LITTELFUSE 257 Series is a fast-acting automotive fuse, model ATO5, rated at 5 A and 32 V DC. It features a standard profile and is non-indicating, supplied in a pack of 5. This fuse is designed for overcurrent…

SKU 3G-OTH-25318

Also listed as: ATO 5 · ATO-5

Brand
LITTELFUSE
Item
257 Series Fast-Acting Fuse
Part Number
ATO5
Category
Fast-Acting Fuses
Available to Order
Also known as:ATO5LITTELFUSE
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
ATO5
Series
257
Type
Fast-Acting, 5 A, Non-Indicating, 5 PK
DC
32 V
Fuse Profile
Standard Profile

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 257 Series is a fast-acting automotive fuse, model ATO5, rated at 5 A and 32 V DC. It features a standard profile and is non-indicating, supplied in a pack of 5. This fuse is designed for overcurrent protection in automotive electrical systems.

Frequently Asked Questions

What is the LITTELFUSE 257 Series ATO5 fuse used for?

The LITTELFUSE 257 Series ATO5 fuse provides overcurrent protection in automotive electrical systems. It is a fast-acting, 5 A, 32 V DC fuse with a standard profile, suitable for protecting wiring and components in vehicles, trucks, and marine applications.

What are the specifications of the LITTELFUSE 257 Series ATO5 fuse?

The LITTELFUSE 257 Series ATO5 fuse is rated at 5 A and 32 V DC. It is fast-acting, non-indicating, and has a standard profile. The pack contains 5 fuses. The manufacturer part number is ATO5, and it belongs to the 257 series.

Where to buy LITTELFUSE 257 Series ATO5 fuses worldwide?

3G Electric supplies LITTELFUSE 257 Series ATO5 fuses worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this fuse for your automotive overcurrent protection needs.

How to select the correct LITTELFUSE 257 Series fuse for my application?

Select the LITTELFUSE 257 Series fuse based on your circuit's voltage and current requirements. The ATO5 is rated for 5 A at 32 V DC. Ensure the fuse's fast-acting characteristic matches your load's inrush current. Always consult the vehicle's wiring diagram for proper sizing.

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 fast-acting 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 →
Fast-acting blade fuse rated 30 A at 32 V DC. Features an indicating function for visual blown-fuse detection. Designed for overcurrent protection in DC circuits, commonly used in automotive electrical systems such as battery, lighting, and accessory circuits
LITTELFUSE
Fast-acting blade fuse rated 30 A at 32 V DC. Features an indicating function for visual blown-fuse detection. Designed for overcurrent protection in DC circuits, commonly used in automotive electrical systems such as battery, lighting, and accessory circuits
Fast-acting automotive fuse rated 3 A at 32 V DC. Standard profile, non-indicating design. Suitable for overcurrent protection in vehicle electrical circuits such as lighting, audio systems, and auxiliary power. Supplied in a 5-pack
LITTELFUSE
Fast-acting automotive fuse rated 3 A at 32 V DC. Standard profile, non-indicating design. Suitable for overcurrent protection in vehicle electrical circuits such as lighting, audio systems, and auxiliary power. Supplied in a 5-pack

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first