MERSEN FUSE 6,9 URB 000 BS 88/315 6,9URB000BS88/0315

MERSEN FUSE 6,9 URB 000 BS 88/315 6,9URB000BS88/0315

High-speed fuse with aR characteristic, rated 315A at 690VAC, suitable for semiconductor protection with L bracket terminals and ceramic body.

SKU: J330058Alt SKU: BS000UB69V315MPN: J330058
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List Price £50.68 ex VAT
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Sold in packs of 3

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Why Choose the Mersen J330058 Carbon Brush?

The Mersen J330058 is an industrial carbon brush replacement component intended for electrical current transmission within compatible motors, generators and rotating electrical machinery. Produced by Mersen, a recognised manufacturer of electrical protection and advanced material solutions, this component is suitable for professional maintenance, repair and overhaul applications.

Carbon brushes provide continuous electrical contact between stationary conductors and rotating commutators or slip rings. Selecting the correct brush helps maintain stable conductivity, controlled wear and dependable equipment operation while reducing the risk of excessive sparking, overheating and damage to contact surfaces.

The J330058 manufacturer reference helps engineers, maintenance teams and purchasing departments identify the required replacement part. Carbon grade, dimensions, terminal style and connection lead configuration can vary between applications, so compatibility should be confirmed against the original brush, machine documentation or equipment manufacturer specifications before installation.

Key Advantages

  • Genuine Mersen industrial carbon brush component.
  • Designed to support reliable current transmission in rotating machinery.
  • Helps maintain consistent contact with compatible commutators or slip rings.
  • Suitable for preventative maintenance and machinery overhaul programmes.
  • J330058 manufacturer reference supports accurate identification and ordering.
  • Replaceable wear component designed for professional industrial servicing.

Key Features

  • Mersen electrical carbon product.
  • Manufacturer reference J330058.
  • Conductive carbon construction for electrical contact applications.
  • Designed for compatible motors, generators and rotating equipment.
  • Supports continuous electrical contact during rotational movement.
  • Application-specific brush dimensions and carbon grade.
  • Application-specific lead and terminal configuration.
  • Suitable for industrial maintenance, repair and replacement work.

Reliable Electrical Contact for Rotating Machinery

Carbon brushes operate under continuous mechanical and electrical load, transferring current while remaining in contact with a moving commutator or slip ring. The brush material gradually wears during normal operation and must be inspected periodically to ensure that sufficient brush length, spring pressure and contact quality are maintained.

Correct brush specification is essential because carbon composition, dimensions, contact geometry and operating conditions directly affect wear rate and electrical performance. The Mersen J330058 should be matched carefully with the original component and installed according to the machinery manufacturer’s maintenance instructions.

Typical Applications

  • Industrial electric motors.
  • Generators and alternators.
  • Direct-current motors and machinery.
  • Slip-ring motor assemblies.
  • Manufacturing and processing equipment.
  • Industrial maintenance and machinery refurbishment programmes.

Technical Specifications

Item number J330058
Catalogue No BS000UB69V315
Description Square Body High-Speed Fuse Protistor® Size NH 000 aR 690VAC IEC 315A L Brackets
EAN/UPC Code 3605340361483
Rated voltage AC UL 690 V
Rated voltage DC UL 500 V
Rated voltage AC IEC 690 V
Ampere Rating 315 A
RoHS Compliant Yes
AC or DC AC/DC
Speed/Characteristic aR
Fuse Size NH000
Mounting Bolted
Clearing I2t At Rated Voltage 82000 A²s
Melting I2t 15420 A²s
AC Max I.R./Breaking Capacity I1: 200 kA
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 58 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 J330058 used for?

The Mersen J330058 is an industrial carbon brush designed to transfer electrical current between stationary and rotating components in compatible motors, generators or other electrical machinery.

Is the Mersen J330058 a replaceable wear component?

Yes. Carbon brushes gradually wear during operation and should be replaced when they reach the minimum permitted length, become damaged or no longer maintain reliable electrical contact.

How do I confirm compatibility with my equipment?

Compare the J330058 reference, brush dimensions, carbon grade, terminal type and lead arrangement with the original component and the machine manufacturer’s technical documentation.

Where is this carbon brush installed?

The brush is installed within a compatible brush holder so that its contact face can operate against the commutator or slip ring of the rotating machine.

Should all brushes in the machine be replaced together?

Brushes operating on the same commutator or slip ring are often replaced as a matched set to support balanced spring pressure, consistent contact and even wear. Follow the equipment manufacturer’s servicing guidance.

Trusted Electrical Carbon Technology

Mersen electrical carbon components are used by industrial maintenance professionals to support dependable current transmission, controlled brush wear and reliable operation across a wide range of rotating electrical equipment.

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