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MERSEN FUSE 6,9 URB 000 BS 88/160 6,9URB000BS88/160

MERSEN FUSE 6,9 URB 000 BS 88/160 6,9URB000BS88/160

Engineered for critical protection of power semiconductor devices, the Protistor® NH 000 aR 690VAC 160A fuse delivers rapid response to overcurrent events, minimising downtime and safeguarding sensitive equipment. Its robust square body construction and IEC compliance ensure dependable performance in demanding industrial environments.

SKU: F330055Alt SKU: BS000UB69V160MPN: F330055
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List Price £41.23 ex VAT
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Why Choose the Mersen F330055 Protistor® High-Speed Fuse?

The Mersen F330055, catalogue number BS000UB69V160, is a square body Protistor® high-speed semiconductor fuse engineered to provide exceptional protection for modern power semiconductor devices. Designed for demanding industrial power conversion applications, it offers ultra-fast aR protection for IGBTs, thyristors, diodes and rectifiers, helping to minimise equipment damage during short-circuit faults.

Manufactured to IEC and UL requirements, the fuse has a 160 A current rating, 690 V AC IEC/UL rating and 500 V DC UL rating. The NH 000 square body design with L brackets allows secure installation into compatible fuse bases while providing excellent thermal performance and extremely high interrupting capacity.

Part of the globally trusted Mersen Protistor® range, the F330055 is widely specified for industrial drives, UPS systems, renewable energy equipment, DC drives, soft starters and other power electronic systems where rapid semiconductor protection is essential.

Key Advantages

  • Ultra-fast aR semiconductor protection.
  • 160 A current rating.
  • 690 V AC IEC/UL operating voltage.
  • 500 V DC UL rating.
  • Square body NH 000 design with L brackets.
  • Very low let-through energy for maximum semiconductor protection.
  • Extremely high breaking capacity.
  • Silver-plated contacts for reliable electrical performance.

Key Features

  • Manufacturer: Mersen
  • Series: Protistor®
  • Reference number: F330055
  • Catalogue number: BS000UB69V160
  • Fuse type: Square Body High-Speed Semiconductor Fuse
  • Protection characteristic: aR
  • NH Size: 000
  • Mounting: L Brackets

Designed for Reliable Semiconductor Protection

Protistor® high-speed fuses are specifically engineered to interrupt fault currents before excessive thermal energy can damage expensive semiconductor devices. Their low I²t characteristics, solidified silica construction and silver-plated contact surfaces provide dependable protection and long service life in demanding industrial environments.

The F330055 offers excellent protection for modern power conversion equipment including variable speed drives, UPS systems, industrial rectifiers, renewable energy converters and motor control systems where semiconductor reliability is critical.

Typical Applications

  • Variable frequency drives (VFDs).
  • Industrial motor drives.
  • UPS systems.
  • Power converters.
  • Industrial rectifiers.
  • Renewable energy inverters.
  • Soft starters.
  • Semiconductor power supplies.

Technical Specifications

Item number F330055
Catalogue No BS000UB69V160
Description Square Body High-Speed Fuse Protistor® Size NH 000 aR 690VAC IEC 160A L Brackets
EAN/UPC Code 3605340361421
Rated voltage AC UL 690 V
Rated voltage DC UL 500 V
Rated voltage AC IEC 690 V
Ampere Rating 160 A
RoHS Compliant Yes
AC or DC AC/DC
Speed/Characteristic aR
Fuse Size NH000
Mounting Bolted
Clearing I2t At Rated Voltage 16000 A²s
Melting I2t 2680 A²s
AC Max I.R./Breaking Capacity I1: 200 kA
Max. Rated Breaking Capacity DC 55 kA @ 600 V, L/R = 12 ms
DC Min. Breaking Capacity (MBC) 20 kA @ 600 V, L/R = 12 ms
Connection/Terminal Material Tin-Plated Copper
Connection/Terminal Type L Brackets
Product Width 36 mm
Product Length 94 mm
Product Height 22.5 mm
Sell Pack Quantity 3 EA
Sell Pack Weight 0.423 kg
Sell Pack Width 110 mm
Sell Pack Length 130 mm
Sell Pack Height 80 mm
Product group Semiconductor Protection Fuses
Body/Insulating Material Ceramic
Product Weight 0.141 kg
Power Dissipation at Rated Current Value 31 W
HS Code 85361090
Country of Manufacture Tunisia
Fuse Type BS88, Semiconductor
Fuse Size NH000
Fuse Class aR
Voltage 690 V

Frequently Asked Questions

What is the Mersen F330055 used for?

It is a high-speed semiconductor protection fuse designed to protect IGBTs, thyristors, diodes and other sensitive power semiconductor devices from short-circuit faults.

What is the current rating of the F330055?

The fuse has a rated current of 160 A.

What voltage is this fuse rated for?

The fuse is rated at 690 V AC (IEC/UL) and 500 V DC (UL).

What does the aR characteristic mean?

The aR characteristic provides ultra-fast short-circuit protection for semiconductor devices and is intended for use alongside appropriate overload protection.

Which applications commonly use this fuse?

The F330055 is commonly used in industrial drives, UPS systems, converters, inverters, rectifiers and other semiconductor-based power electronic equipment.

Trusted Semiconductor Protection Worldwide

Mersen Protistor® high-speed fuses are trusted worldwide for delivering dependable protection of valuable semiconductor equipment across industrial automation, renewable energy and power conversion applications.

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