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

BUSSMANN Fuse: S501 Series, Fast-Acting, 3.15 A, 250 V AC, Non-Indicating - Fast-Acting Cylindrical Fuses
BUSSMANNFast-Acting Cylindrical Fuses

BUSSMANN Fuse: S501 Series, Fast-Acting, 3.15 A, 250 V AC, Non-Indicating

The BUSSMANN S501 Series is a fast-acting cylindrical fuse rated at 3.15 A and 250 V AC, with a non-indicating design in a 5 mm x 20 mm form factor. It is equivalent to the GDA, S501, 216, and GSD fuse series.

SKU 3G-OTH-27668

Also listed as: BKS501315R · BK S501 3 15 R · BK-S501-3-15-R

Brand
BUSSMANN
Item
Fuse: S501 Series, Fast-Acting, 3.15 A, 250 V AC, Non-Indicating
Category
Fast-Acting 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 — 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

BUSSMANN
Manufacturer Part Number
BK/S501-3.15-R
Series
S501
Type
Fast-Acting, 3.15 A, Non-Indicating, 5 mm x 20 mm
AC
250 V
Equivalent Fuse Series
GDA, S501, 216 & GSD

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 S501 Series is a fast-acting cylindrical fuse rated at 3.15 A and 250 V AC, with a non-indicating design in a 5 mm x 20 mm form factor. It is equivalent to the GDA, S501, 216, and GSD fuse series.

Frequently Asked Questions

What is the BUSSMANN S501 Series fuse used for?

The BUSSMANN S501 Series fast-acting fuse is used for overcurrent protection in industrial control panels, power supplies, and electronic equipment. Its 3.15 A rating and 250 V AC capacity make it suitable for protecting sensitive circuits where rapid response to faults is critical.

What are the specifications of the BUSSMANN S501-3.15-R fuse?

The BUSSMANN S501-3.15-R is a fast-acting, non-indicating cylindrical fuse rated at 3.15 A and 250 V AC. It has a 5 mm x 20 mm form factor and is part of the S501 series. Equivalent series include GDA, S501, 216, and GSD. The manufacturer part number is BK/S501-3.15-R.

Where to buy BUSSMANN S501 fuses worldwide?

3G Electric supplies BUSSMANN S501 series fuses worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the BK/S501-3.15-R or other S501 ratings.

How to select the right BUSSMANN S501 fuse for my application?

Select the BUSSMANN S501 fuse based on your circuit's voltage (250 V AC max) and current rating (3.15 A for this model). Ensure the 5 mm x 20 mm size fits your holder. For fast-acting protection, match the fuse's interrupting rating to your fault current. Consult a qualified engineer for critical applications.

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 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: S501 Series, Fast-Acting, 2 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN BK/S501-2-R)
BUSSMANN
BUSSMANN Fuse: S501 Series, Fast-Acting, 2 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN BK/S501-2-R)
BUSSMANN Fuse: S501 Series, Fast-Acting, 250 mA, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN BK/S501-250-R)
BUSSMANN
BUSSMANN Fuse: S501 Series, Fast-Acting, 250 mA, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN BK/S501-250-R)
BUSSMANN Fuse: S501 Series, Fast-Acting, 5 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN BK/S501-5-R)
BUSSMANN
BUSSMANN Fuse: S501 Series, Fast-Acting, 5 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN BK/S501-5-R)
BUSSMANN Fuse: S501 Series, Fast-Acting, 1 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN BK/S501-1-R)
BUSSMANN
BUSSMANN Fuse: S501 Series, Fast-Acting, 1 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN BK/S501-1-R)
BUSSMANN Fuse: S501 Series, Fast-Acting, 500 mA, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN BK/S501-500-R)
BUSSMANN
BUSSMANN Fuse: S501 Series, Fast-Acting, 500 mA, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN BK/S501-500-R)
BUSSMANN Fuse: S501 Series, Fast-Acting, 130 mA, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN BK/S501-125-R)
BUSSMANN
BUSSMANN Fuse: S501 Series, Fast-Acting, 130 mA, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN BK/S501-125-R)

More from BUSSMANN

View all BUSSMANN parts
BUSSMANN Fuse: BAF Series, Midget, Fast-Acting, 4 A, 250 V AC, 13/32 in x 1 1/2 in, Non-Indicating (MPN BAF-4)
BUSSMANN
BUSSMANN Fuse: BAF Series, Midget, Fast-Acting, 4 A, 250 V AC, 13/32 in x 1 1/2 in, Non-Indicating (MPN BAF-4)
BUSSMANN Fuse: AGX Series, Fast-Acting, 1.5 A, 250 V AC, 1/4 in x 1 in (MPN AGX-1-1/2)
BUSSMANN
BUSSMANN Fuse: AGX Series, Fast-Acting, 1.5 A, 250 V AC, 1/4 in x 1 in (MPN AGX-1-1/2)
BUSSMANN Fuse: ABC Series, Fast-Acting, 8 A, 250 V AC, Non-Indicating, 1/4 in x 1 1/4 in, ABC & GAB (MPN ABC-8-R)
BUSSMANN
BUSSMANN Fuse: ABC Series, Fast-Acting, 8 A, 250 V AC, Non-Indicating, 1/4 in x 1 1/4 in, ABC & GAB (MPN ABC-8-R)
BUSSMANN Fuse: KTK Series, Midget, Fast-Acting, 8 A, 600 V AC, 13/32 in x 1 1/2 in, Non-Indicating (MPN KTK-8)
BUSSMANN
BUSSMANN Fuse: KTK Series, Midget, Fast-Acting, 8 A, 600 V AC, 13/32 in x 1 1/2 in, Non-Indicating (MPN KTK-8)
BUSSMANN Fuse: GDA Series, Fast-Acting, 250 mA, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN GDA-250MA)
BUSSMANN
BUSSMANN Fuse: GDA Series, Fast-Acting, 250 mA, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN GDA-250MA)
BUSSMANN Fuse: GMA Series, Fast-Acting, 1.5 A, 250 V AC, 5 mm x 20 mm (MPN BK/GMA-1.5-R)
BUSSMANN
BUSSMANN Fuse: GMA Series, Fast-Acting, 1.5 A, 250 V AC, 5 mm x 20 mm (MPN BK/GMA-1.5-R)
Solar Fuse: PVS-R Series, Fast-Acting, 300 A, 600 V DC (MPN PVS-R-300)
BUSSMANN
Solar Fuse: PVS-R Series, Fast-Acting, 300 A, 600 V DC (MPN PVS-R-300)
BUSSMANN Fuse: S501 Series, Fast-Acting, 80 mA, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S501-80-R)
BUSSMANN
BUSSMANN Fuse: S501 Series, Fast-Acting, 80 mA, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S501-80-R)