MERSEN FUSE 2,5 URZ 17/100 2,5URZ17/100

MERSEN FUSE 2,5 URZ 17/100 2,5URZ17/100

The Protistor® 17×27 aR fuse-link is engineered for reliable protection of semiconductor devices in demanding industrial environments. With a compact 17x27mm design and 100A current rating, it ensures safe and efficient circuit protection at voltages up to 250V AC.

SKU: Y085558Alt SKU: BS17UZ25V100MPN: Y085558
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List Price £19.07 ex VAT
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Why Choose the Mersen Y085558 High Speed Semiconductor Fuse?

The Mersen Y085558 is a premium Protistor® BS88-4 high speed semiconductor fuse engineered to provide rapid and reliable protection for power semiconductors and industrial electronic equipment. Manufactured by Mersen, this fuse is designed to safeguard IGBTs, thyristors, diodes, converters and other sensitive power electronic devices from damaging short circuits and overcurrent conditions.

Part of the trusted Protistor® BS88-4 17 × 27 mm fuse range, the Y085558 features an aR operating characteristic, making it ideal for short circuit protection of semiconductor devices. Its compact design, high breaking capacity and low let-through energy help improve equipment reliability while minimising downtime in demanding industrial applications.

With a 100 A current rating and 250 V AC IEC/UL voltage rating, the Mersen Y085558 is ideally suited for industrial drives, power converters, UPS systems and automation equipment requiring dependable semiconductor protection.

Key Advantages

  • High speed Protistor® semiconductor protection fuse.
  • 100 A current rating for demanding industrial applications.
  • 250 V AC rated voltage.
  • aR operating characteristic for semiconductor short circuit protection.
  • Extremely high breaking capacity.
  • Ideal for converters, motor drives, UPS systems and industrial automation.

Key Features

  • Manufacturer: Mersen.
  • Series: Protistor® BS88-4.
  • Model: Y085558.
  • Catalogue number: BS17UZ25V100.
  • 100 A rated current.
  • 250 V AC IEC/UL rated voltage.
  • aR semiconductor protection characteristic.
  • 17 × 27 mm BS88-4 fuse-link.
  • Bolted tag terminals.
  • Ceramic body with high rupture capacity.

Reliable Protection for Industrial Power Electronics

High speed semiconductor fuses are designed to clear fault currents before excessive thermal energy can damage expensive power electronic components. The Mersen Y085558 provides rapid interruption with low let-through energy, helping extend the operational life of IGBT modules, thyristors and rectifier assemblies.

Its compact BS88-4 construction and proven Protistor® technology make it suitable for modern industrial automation, motor control systems, renewable energy installations and power conversion equipment where dependable circuit protection is essential.

Typical Applications

  • Variable frequency drives (VFDs).
  • Industrial power converters.
  • UPS systems.
  • Renewable energy inverters.
  • Semiconductor and IGBT protection.
  • Industrial automation and electrical control panels.

Technical Specifications

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Fuse Type Semiconductor
Fuse Size 17x27 mm
Fuse Class aR
Voltage 250 V
Item number Y085558
Catalogue No BS17UZ25V100
Description British Standard fuse-link Protistor® 17x27 aR 250V AC UL 100A
EAN/UPC Code 3605340070309
Rated voltage AC UL 250 V
Rated voltage DC UL 250 V
Rated voltage AC IEC 250 V
Ampere Rating 100 A
RoHS Compliant Yes
AC or DC AC
Speed/Characteristic aR
Fuse Size 17x27
Mounting Bolted
Clearing I2t At Rated Voltage 4060 A²s
Melting I2t 730 A²s
Connection/Terminal Material Copper
Connection/Terminal Type L Brackets
Product Diameter 18.5 mm
Product Length 54.4 mm
Sell Pack Quantity 10 EA
Sell Pack Weight 0.276 kg
Sell Pack Width 68 mm
Sell Pack Length 188 mm
Sell Pack Height 24 mm
Product group Semiconductor Protection Fuses
Body/Insulating Material Ceramic
Product Weight 0.0276 kg
Power Dissipation at Rated Current Value 11.5 W
HS Code 85361090
Country of Manufacture India

Frequently Asked Questions

What is the Mersen Y085558 used for?

The Y085558 is a high speed semiconductor fuse designed to protect converters, motor drives, power supplies and other industrial electronic equipment.

What is the current rating of the Y085558?

The fuse has a 100 A current rating.

What voltage is the Y085558 rated for?

The fuse is rated for operation up to 250 V AC.

What type of protection does this fuse provide?

The aR operating characteristic provides fast short circuit protection for sensitive semiconductor devices.

Where is the Mersen Y085558 typically installed?

It is commonly installed in industrial drives, converters, UPS systems, power supplies and electrical control panels.

Trusted Protection for Industrial Power Systems

Mersen Protistor® semiconductor fuses are trusted worldwide by OEMs, panel builders and industrial engineers for delivering dependable protection and reliable performance in critical power electronic applications.