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

BUSSMANN Fuse: S505 Series, Time-Delay, 8 A, 250 V AC, Non-Indicating - Time-Delay Cylindrical Fuses
BUSSMANNTime-Delay Cylindrical Fuses

BUSSMANN Fuse: S505 Series, Time-Delay, 8 A, 250 V AC, Non-Indicating

The BUSSMANN S505 Series is a time-delay cylindrical fuse rated at 8 A and 250 V AC, with a 5 mm x 20 mm form factor. This non-indicating fuse is identified by manufacturer part number S505-8-R and is equivalent to…

SKU 3G-OTH-26550

Also listed as: S5058R · S505 8 R

Brand
BUSSMANN
Item
Fuse: S505 Series, Time-Delay, 8 A, 250 V AC, Non-Indicating
Category
Time-Delay 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
S505-8-R
Series
S505
Type
Time-Delay, 8 A, Non-Indicating, 5 mm x 20 mm
AC
250 V
Equivalent Fuse Series
S505, 477, & GSF

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 S505 Series is a time-delay cylindrical fuse rated at 8 A and 250 V AC, with a 5 mm x 20 mm form factor. This non-indicating fuse is identified by manufacturer part number S505-8-R and is equivalent to the S505, 477, and GSF series.

Frequently Asked Questions

What is the BUSSMANN S505-8-R fuse used for?

The BUSSMANN S505-8-R is a time-delay cylindrical fuse rated at 8 A and 250 V AC. It protects equipment from overcurrents while tolerating temporary inrush currents, making it suitable for industrial control panels, power supplies, and motor circuits that require a 5 mm x 20 mm form factor.

What are the specifications of the BUSSMANN S505-8-R fuse?

The BUSSMANN S505-8-R is a time-delay, non-indicating fuse rated at 8 A and 250 V AC. It has a 5 mm x 20 mm cylindrical body and is part of the S505 series. Equivalent fuse series include S505, 477, and GSF. The manufacturer part number is S505-8-R.

Where to buy BUSSMANN S505-8-R fuses worldwide?

3G Electric supplies the BUSSMANN S505-8-R fuse worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this time-delay fuse to any country.

How to select the correct BUSSMANN S505 series fuse for my application?

To select the correct BUSSMANN S505 series fuse, verify your circuit's voltage (250 V AC maximum) and continuous current (8 A). Ensure the 5 mm x 20 mm form factor fits your holder. The time-delay characteristic handles inrush loads; for fast-blow needs, consider BUSSMANN's fast-acting series. Always consult the equipment manual.

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 time-delay 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: S505 Series, Time-Delay, 6.3 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S505-6.3-R)
BUSSMANN
BUSSMANN Fuse: S505 Series, Time-Delay, 6.3 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S505-6.3-R)
BUSSMANN Fuse: S505 Series, Time-Delay, 1 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN BK/S505-1-R)
BUSSMANN
BUSSMANN Fuse: S505 Series, Time-Delay, 1 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN BK/S505-1-R)
BUSSMANN Fuse: S505 Series, Time-Delay, 1.6 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S505-1.6-R)
BUSSMANN
BUSSMANN Fuse: S505 Series, Time-Delay, 1.6 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S505-1.6-R)
BUSSMANN Fuse: S505 Series, Time-Delay, 500 mA, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN BK/S505-500-R)
BUSSMANN
BUSSMANN Fuse: S505 Series, Time-Delay, 500 mA, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN BK/S505-500-R)
BUSSMANN Fuse: S506 Series, Time-Delay, 1.25 A, 250 V AC, 5 mm x 20 mm (MPN S506-1.25-R)
BUSSMANN
BUSSMANN Fuse: S506 Series, Time-Delay, 1.25 A, 250 V AC, 5 mm x 20 mm (MPN S506-1.25-R)
BUSSMANN Fuse: S505 Series, Time-Delay, 4 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S505-4-R)
BUSSMANN
BUSSMANN Fuse: S505 Series, Time-Delay, 4 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S505-4-R)

More from BUSSMANN

View all BUSSMANN parts
BUSSMANN Fuse: FNM Series, Midget, Time-Delay, 2 A, 250 V AC, 13/32 in x 1 1/2 in, Non-Indicating (MPN FNM-2)
BUSSMANN
BUSSMANN Fuse: FNM Series, Midget, Time-Delay, 2 A, 250 V AC, 13/32 in x 1 1/2 in, Non-Indicating (MPN FNM-2)
Fuse: FNQ-R Series, Time-Delay, 1.3 A, 600 V AC, Non-Indicating, 13/32 in x 1 1/2 in (MPN FNQ-R-1-3/10)
BUSSMANN
Fuse: FNQ-R Series, Time-Delay, 1.3 A, 600 V AC, Non-Indicating, 13/32 in x 1 1/2 in (MPN FNQ-R-1-3/10)
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 45 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-45ID)
BUSSMANN
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 45 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-45ID)
BUSSMANN Fuse: FNQ Series, Midget, Time-Delay, 125 mA, 500 V AC, 13/32 in x 1 1/2 in, Non-Indicating (MPN FNQ-1/8)
BUSSMANN
BUSSMANN Fuse: FNQ Series, Midget, Time-Delay, 125 mA, 500 V AC, 13/32 in x 1 1/2 in, Non-Indicating (MPN FNQ-1/8)
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 30 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-30ID)
BUSSMANN
BUSSMANN Fuse: Class RK5, FRN-R-ID Series, Time-Delay, 30 A, 250 V AC, 125 V DC, Indicating (MPN FRN-R-30ID)
BUSSMANN Fuse: FNM Series, Midget, Time-Delay, 30 A, 250 V AC, 13/32 in x 1 1/2 in, Non-Indicating (MPN FNM-30)
BUSSMANN
BUSSMANN Fuse: FNM Series, Midget, Time-Delay, 30 A, 250 V AC, 13/32 in x 1 1/2 in, Non-Indicating (MPN FNM-30)
BUSSMANN Fuse: S505 Series, Time-Delay, 800 mA, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S505-800-R)
BUSSMANN
BUSSMANN Fuse: S505 Series, Time-Delay, 800 mA, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S505-800-R)
BUSSMANN Fuse: MDL Series, Time-Delay, 3.2 A, 250 V AC, 1/4 in x 1 1/4 in (MPN MDL-3-2/10-R)
BUSSMANN
BUSSMANN Fuse: MDL Series, Time-Delay, 3.2 A, 250 V AC, 1/4 in x 1 1/4 in (MPN MDL-3-2/10-R)