MERSEN FUSE 2,5 URGS 17 P 20 B097544

MERSEN FUSE 2,5 URGS 17 P 20 B097544

The BS17US25V20P fuse-link ensures reliable circuit protection for demanding industrial and control applications, rated at 20A and 250V AC with integrated striker for remote indication.

SKU: B097544Alt SKU: BS17US25V20PMPN: B097544
Price
List Price £56.13 ex VAT
Your Price (ex VAT)
£56.13
Manufacturer Lead Time Please contact us for a delivery time before you order
Get the best trade prices Trade exclusive

Create a trade account to unlock exclusive pricing, special offers and more.

SUBTOTAL (EX VAT) £56.13
Trade pricing is personalised to your account

Manufacturer Lead Time

Sold in packs of 3

£56.13

Why Choose the Mersen B097544 Protistor® Semiconductor Fuse?

The Mersen B097544 is a high performance Protistor® BS88-4 semiconductor fuse engineered to provide ultra fast protection for sensitive power electronic equipment. Designed specifically for semiconductor applications, this fuse offers exceptional fault current limitation to help protect valuable components such as IGBTs, thyristors, rectifiers and power converters from damaging short circuits.

As part of the trusted Mersen Protistor® BS88-4 17 × 27 mm range, the B097544 is manufactured to meet demanding industrial requirements while delivering reliable operation and long service life. The integrated striker provides remote indication capability when used with compatible fuse holders, making maintenance and fault diagnosis easier in critical installations.

With a 20 A current rating, 250 V AC IEC / 250 V AC UL rating and 17 × 27 mm BS88-4 construction, the Mersen B097544 is ideal for protecting semiconductor devices used in industrial automation, drives, UPS systems and power conversion equipment.

Key Advantages

  • Ultra fast semiconductor protection fuse for sensitive electronic equipment.
  • 20 A current rating for industrial power electronics.
  • 250 V AC rated voltage suitable for semiconductor protection applications.
  • Integrated striker indicator for enhanced fault indication.
  • Excellent current limiting performance helps minimise equipment damage.
  • Reliable protection for converters, drives, UPS systems and industrial machinery.

Key Features

  • Mersen Protistor® BS88-4 series.
  • Model: B097544 (BS17US25V20P).
  • 20 A rated current.
  • 250 V AC IEC / UL rating.
  • 17 × 27 mm BS88-4 fuse-link design.
  • Ultra fast aR semiconductor protection characteristics.
  • Integrated striker for fuse status indication.
  • Designed for industrial power electronic equipment.

Reliable Protection for Power Electronic Systems

High speed semiconductor fuses are specifically designed to protect expensive electronic power devices by interrupting fault currents before they can cause catastrophic damage. Their low let-through energy and rapid operation help maximise equipment reliability while reducing downtime and maintenance costs.

The Mersen Protistor® range is widely specified by OEMs, panel builders and industrial engineers for protecting variable speed drives, rectifiers, converters, UPS systems and renewable energy equipment where dependable semiconductor protection is essential.

Typical Applications

  • Variable frequency drives (VFDs).
  • Industrial motor control systems.
  • Power converters and rectifiers.
  • UPS and battery backup systems.
  • Renewable energy inverters.
  • Industrial automation and machine building.

Technical Specifications

Item number B097544
Catalogue No BS17US25V20P
Description British Standard fuse-link Protistor® 17x27 aR 250V AC UL 20A With Striker
EAN/UPC Code 3605340146851
Rated voltage AC UL 250 V
Rated voltage DC UL 300 V
Rated voltage AC IEC 250 V
Ampere Rating 20 A
RoHS Compliant Yes
AC or DC AC
Speed/Characteristic aR
Fuse Size 17x27
Mounting Bolted
Clearing I2t At Rated Voltage 100 A²s
Melting I2t 15.6 A²s
AC Max I.R./Breaking Capacity I1: 250 kA
Indication System Yes
Indication System Type Striker
Connection/Terminal Material Copper
Connection/Terminal Type L Brackets
Product Diameter 18.5 mm
Product Width 27 mm
Product Length 54.4 mm
Product Height 24 mm
Sell Pack Quantity 3 EA
Sell Pack Weight 0.1299 kg
Sell Pack Width 110 mm
Sell Pack Length 130 mm
Sell Pack Height 40 mm
Product group Semiconductor Protection Fuses
Body/Insulating Material Ceramic
Product Weight 0.0433 kg
Power Dissipation at Rated Current Value 3.9 W
HS Code 85361050
Country of Manufacture India
Fuse Type Semiconductor
Fuse Size 17x27 mm
Fuse Class aR
Voltage 250 V

Frequently Asked Questions

What is the Mersen B097544 used for?

The Mersen B097544 is an ultra fast semiconductor fuse designed to protect power electronic devices such as IGBTs, thyristors, converters and industrial drives.

What is the current rating of this fuse?

The fuse has a 20 A current rating.

What voltage is the fuse rated for?

The B097544 is rated for 250 V AC operation and up to 300 V DC UL.

What does the integrated striker do?

The built-in striker provides mechanical indication that the fuse has operated and can be used with compatible accessories for remote signalling.

Where is this fuse commonly installed?

It is typically installed in BS88 fuse holders within industrial control panels, drives, UPS systems and power conversion equipment.

Trusted for Semiconductor Protection Worldwide

Mersen Protistor® semiconductor fuses are relied upon worldwide by OEMs, machine builders and industrial engineers for delivering fast, dependable protection for critical power electronic equipment.

● Service Agreements

Credit Accounts

Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.

 Priority sourcing and supply support

 Flexible payment terms for qualifying organisations

 Support for engineering, maintenance, and operations

500 +

Stock lines ready to ship

1,000 +

Same day dispatches

3500 +

Customers supported

28 

Trusted Manfacturers

● frequently asked questions

Common questions about our products and support

 

At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.

What product ranges do you supply

We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products. 

Can you help specify the correct part?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

Do you have stock for urgent orders?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What are your delivery times and costs?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What about warranties, returns and faulty items?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

● latest blog

Discover  our latest insights and
expert advice

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.

LED Controls: Danfoss Drives Authorised Partner

LED Controls: Danfoss Drives Authorised Partner

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...

LED Controls: Your Complete Control Panel Solution

LED Controls: Your Complete Control Panel Solution

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...