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MERSEN FUSE BTC42V125 B1 BTC42V125

MERSEN FUSE BTC42V125 B1 BTC42V125

Reliable circuit protection fuse-link rated at 125A for AC/DC applications up to 415VAC and 240VDC with central bolted tag design, compliant with IEC/BS88 standards.

SKU: BTC42V125Alt SKU: BTC42V125MPN: E1019203
Price
List Price £37.76 ex VAT
Your Price (ex VAT)
£37.76
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Manufacturer Lead Time

Sold in packs of 10

£37.76

Why Choose the Mersen BTC42V125 BS88 Fuse Link?

The Mersen BTC42V125 is a premium BS88 gG central bolted tag fuse link designed to provide reliable overload and short-circuit protection for low-voltage electrical distribution systems. Manufactured by Mersen, this industrial fuse offers excellent current-limiting performance, helping to protect switchgear, cables and electrical equipment operating in demanding industrial and commercial environments.

Complying with EN 60269-2 and BS88 Part 2, the BTC42V125 is designed for general-purpose (gG) circuit protection. Its Type B1 central bolted tag construction enables secure installation into compatible fuse holders, busbars and fuse switch disconnectors, making it an ideal solution for panel builders, OEM manufacturers and electrical contractors.

With a rated current of 125 A, 415 V AC and 240 V DC ratings, the BTC42V125 provides dependable protection for industrial power distribution, motor control equipment and commercial electrical installations.

Key Advantages

  • BS88 gG central bolted tag fuse link for industrial circuit protection.
  • 125 A current rating for industrial and commercial applications.
  • 415 V AC and 240 V DC ratings for low-voltage distribution systems.
  • Excellent current-limiting characteristics minimise fault energy.
  • Type B1 central bolted tag design for secure installation.
  • Manufactured to EN 60269-2 and BS88 Part 2 standards.

Key Features

  • Mersen BTC central bolted tag fuse series.
  • 125 A rated current.
  • 415 V AC / 240 V DC voltage rating.
  • gG utilisation category for general-purpose protection.
  • BS88 Type B1 central bolted tag construction.
  • Suitable for fuse holders, busbars and switch disconnectors.
  • Reliable overload and short-circuit protection.
  • High fault current limiting capability.

Reliable Protection for Industrial Electrical Systems

The Mersen BTC42V125 protects electrical installations by rapidly interrupting overload and short-circuit currents before they can damage cables, switchgear and connected equipment. Its gG operating characteristic provides dependable full-range protection across a broad range of industrial and commercial power distribution applications.

Designed for electrical engineers, panel builders and OEM manufacturers, the BTC42V125 delivers consistent fault protection while helping to improve system reliability and minimise equipment downtime.

Typical Applications

  • Industrial electrical distribution panels.
  • Main switchboards.
  • Fuse switch disconnectors.
  • Busbar protection systems.
  • Motor control centres.
  • OEM electrical control panels.

Technical Specifications

Item number E1019203
Catalogue No BTC42V125
Description British Standard fuse-link IEC BS88 gG Type B1 415VAC 240VDC 125A BTC Central Bolted Tag
EAN/UPC Code 3605340515688
Rated voltage AC IEC 415 V
Rated voltage DC IEC 240 V
Ampere Rating 125 A
RoHS Compliant Yes
AC or DC AC/DC
Speed/Characteristic gG
Fuse Size B1
Mounting Bolted
Clearing I2t At Rated Voltage 78400 A²s
Melting I2t 28000 A²s
AC Max I.R./Breaking Capacity I1: 80 kA
Max. Rated Breaking Capacity DC 40 kA
Connection/Terminal Material Tin-Plated Copper
Connection/Terminal Type Central Bolted Tag
Product Diameter 26.9 mm
Product Length 137 mm
Sell Pack Quantity 10 EA
Sell Pack Weight 1.245 kg
Sell Pack Width 145 mm
Sell Pack Length 150 mm
Sell Pack Height 60 mm
Product group Low Voltage IEC Fuses
Body/Insulating Material Ceramic
Product Weight 0.1245 kg
Power Dissipation at Rated Current Value 11.3 W
HS Code 85361090
Country of Manufacture India
Fuse Class gG
Voltage 415 V

Frequently Asked Questions

What is the Mersen BTC42V125 used for?

The BTC42V125 provides overload and short-circuit protection for industrial electrical distribution systems, switchgear and power equipment.

What is the current rating of this fuse?

The Mersen BTC42V125 has a 125 A current rating.

What voltage is the fuse rated for?

The fuse is rated for 415 V AC and 240 V DC operation.

What does the gG classification mean?

The gG utilisation category provides full-range protection against both overload and short-circuit faults in general-purpose electrical circuits.

Where is the BTC42V125 typically installed?

It is commonly installed in compatible fuse holders, busbar systems and fuse switch disconnectors within industrial electrical distribution equipment.

Trusted by Electrical Professionals Worldwide

Mersen BS88 fuse links are trusted by electrical engineers, panel builders and maintenance professionals for delivering dependable circuit protection, excellent current limitation and reliable long-term performance across industrial power distribution systems.

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