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BUSSMANN Fuse: S505 Series, Time-Delay, 1.25 A, 250 V AC, Non-Indicating - Time-Delay Cylindrical Fuses
BUSSMANNTime-Delay Cylindrical Fuses

BUSSMANN Fuse: S505 Series, Time-Delay, 1.25 A, 250 V AC, Non-Indicating

The BUSSMANN S505 Series is a time-delay cylindrical fuse rated at 1.25 A and 250 V AC, with a non-indicating design in a 5 mm x 20 mm package (MPN S505-1.25-R). It is equivalent to the S505, 477, and GSF fuse series.

SKU 3G-OTH-26792

Also listed as: S505125R · S505 1 25 R · S505-1-25-R

Brand
BUSSMANN
Item
Fuse: S505 Series, Time-Delay, 1.25 A, 250 V AC, Non-Indicating
Category
Time-Delay Cylindrical Fuses
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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
S505-1.25-R
Series
S505
Type
Time-Delay, 1.25 A, Non-Indicating, 5 mm x 20 mm
AC
250 V
Equivalent Fuse Series
S505, 477, & GSF

Technical Documents

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

Product Description

The BUSSMANN S505 Series is a time-delay cylindrical fuse rated at 1.25 A and 250 V AC, with a non-indicating design in a 5 mm x 20 mm package (MPN S505-1.25-R). It is equivalent to the S505, 477, and GSF fuse series.

Frequently Asked Questions

What is the BUSSMANN S505-1.25-R fuse used for?

The BUSSMANN S505-1.25-R is a time-delay cylindrical fuse rated at 1.25 A and 250 V AC, designed to protect circuits from overcurrent while tolerating temporary inrush currents. It is commonly used in industrial control panels, power supplies, and instrumentation where reliable, non-indicating protection is required.

What are the specifications of the BUSSMANN S505-1.25-R fuse?

The BUSSMANN S505-1.25-R is a time-delay, non-indicating fuse rated at 1.25 A and 250 V AC. It comes in a 5 mm x 20 mm package and is part of the S505 series. Equivalent fuse series include S505, 477, and GSF. The manufacturer part number is S505-1.25-R.

Where to buy the BUSSMANN S505-1.25-R fuse worldwide?

3G Electric supplies the BUSSMANN S505-1.25-R fuse to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this time-delay fuse.

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

To select the correct BUSSMANN S505 series fuse, match the voltage rating (250 V AC) and current rating (1.25 A) to your circuit requirements. Time-delay fuses are ideal for circuits with high inrush currents, such as motors or transformers. Always verify the physical size (5 mm x 20 mm) fits your holder.

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.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
BUSSMANN Fuse: S505 Series, Time-Delay, 10 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S505-10-R)
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BUSSMANN Fuse: S505 Series, Time-Delay, 10 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S505-10-R)
BUSSMANN Fuse: S505 Series, Time-Delay, 1 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S505-1-R)
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BUSSMANN Fuse: S505 Series, Time-Delay, 1 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN 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)
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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, 2.5 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S505-2.5-R)
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BUSSMANN Fuse: S505 Series, Time-Delay, 2.5 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S505-2.5-R)
BUSSMANN Fuse: S505 Series, Time-Delay, 2 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S505-2-R)
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BUSSMANN Fuse: S505 Series, Time-Delay, 2 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S505-2-R)
BUSSMANN Fuse: S505 Series, Time-Delay, 3.15 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S505-3.15-R)
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BUSSMANN Fuse: S505 Series, Time-Delay, 3.15 A, 250 V AC, Non-Indicating, 5 mm x 20 mm (MPN S505-3.15-R)

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