MERSEN FUSE BTCP42V125 A4 BTCP42V125

MERSEN FUSE BTCP42V125 A4 BTCP42V125

The BTCP42V125 fuse-link is engineered to IEC and BS88 standards, offering reliable circuit protection for industrial and commercial power distribution up to 415VAC and 240VDC with a robust 125A rating and offset tag BTCP mounting design.

SKU: BTCP42V125Alt SKU: BTCP42V125MPN: W1019195
Price
List Price £27.15 ex VAT
Your Price (ex VAT)
£27.15
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) £27.15
Trade pricing is personalised to your account

Manufacturer Lead Time

Sold in packs of 10

£27.15

Why Choose the Mersen BTCP42V125 BS88 gG Fuse Link?

The Mersen BTCP42V125 is a high-quality British Standard BS88 gG fuse link designed to provide reliable general-purpose circuit protection for industrial electrical distribution systems. As part of the trusted Mersen Offset Tag fuse-link series, it offers outstanding protection against overloads and short circuits while delivering excellent current limitation for enhanced equipment safety.

Manufactured in accordance with EN 60269-2 and BS88 Part 2, the BTCP42V125 is suitable for protecting cables, switchgear, distribution boards and industrial power systems. Its offset tag design allows secure installation in compatible fuse holders, switch disconnectors and busbar-mounted assemblies.

With a 125 A current rating, 415 V AC and 240 V DC voltage ratings, the BTCP42V125 is an excellent choice for commercial and industrial installations requiring dependable low-voltage circuit protection.

Key Advantages

  • High-performance BS88 gG general-purpose fuse link.
  • 125 A current rating for industrial power distribution.
  • 415 V AC / 240 V DC rated voltage.
  • Excellent current limiting performance reduces damage during fault conditions.
  • High breaking capacity for dependable circuit protection.
  • Offset tag construction enables secure mounting and straightforward replacement.

Key Features

  • Mersen Offset Tag fuse-link series.
  • BS88 gG Type A4 fuse.
  • 125 A rated current.
  • 415 V AC / 240 V DC rated voltage.
  • Manufactured to EN 60269-2 and BS88 Part 2.
  • General-purpose cable and equipment protection.
  • Offset tag mounting configuration.
  • RoHS compliant construction.

Reliable Protection for Industrial Electrical Systems

The Mersen BTCP42V125 is engineered to protect low-voltage electrical installations against overload and short-circuit faults. Its gG operating characteristic provides full-range protection for cables, conductors and electrical equipment, helping minimise damage and improve system reliability.

Its robust construction and excellent current limiting characteristics make it suitable for industrial switchboards, commercial distribution equipment, OEM machinery and electrical infrastructure where dependable protection is essential.

Typical Applications

  • Industrial electrical distribution systems.
  • Commercial switchboards.
  • Distribution panels.
  • Fuse switch disconnectors.
  • OEM machinery and control panels.
  • Cable and equipment protection.

Technical Specifications

Item number W1019195
Catalogue No BTCP42V125
Description British Standard fuse-link IEC BS88 gG Type A4 415VAC 240VDC 125A BTCP Offset Tag
EAN/UPC Code 3605340517163
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 A4
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 Offset Tag
Product Diameter 26.9 mm
Product Width 28.5 mm
Product Length 111 mm
Sell Pack Quantity 10 EA
Sell Pack Weight 1.15 kg
Sell Pack Width 120 mm
Sell Pack Length 213 mm
Sell Pack Height 40 mm
Product group Low Voltage IEC Fuses
Body/Insulating Material Ceramic
Product Weight 0.115 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 BTCP42V125 used for?

It is a BS88 gG fuse link designed to provide general-purpose protection against overloads and short circuits in industrial and commercial electrical systems.

What is the current rating of this fuse?

The Mersen BTCP42V125 has a 125 A rated current.

What voltage is the BTCP42V125 rated for?

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

Which standards does this fuse comply with?

It complies with EN 60269-2 and BS88 Part 2 for British Standard low-voltage fuse links.

Where is the BTCP42V125 typically installed?

It is commonly installed in fuse holders, switch disconnectors and industrial distribution equipment to protect cables and electrical circuits.

Trusted for Industrial Circuit Protection

Mersen BS88 fuse links are trusted by panel builders, electrical contractors and maintenance engineers for dependable overload and short-circuit protection in industrial and commercial power distribution systems.

● 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...