MERSEN FUSE BTSD42V125 A4C BTSD42V125

MERSEN FUSE BTSD42V125 A4C BTSD42V125

The BTSD42V125 fuse-link offers dependable circuit protection for industrial and commercial applications up to 415VAC and 240VDC with a 125A rating and offset tag terminals.

SKU: BTSD42V125Alt SKU: BTSD42V125MPN: A1019199
Price
List Price £31.51 ex VAT
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Sold in packs of 10

£31.51

Why Choose the Mersen BTSD42V125 BS88 Offset Tag Fuse?

The Mersen BTSD42V125 is a British Standard BS88 gG offset tag fuse-link designed to provide dependable overload and short-circuit protection for industrial and commercial low-voltage power distribution systems. Part of the proven Mersen BTSD offset tag fuse-link range, it is engineered for installations requiring reliable fault interruption, excellent current limitation and full compliance with BS88 and IEC standards.

Manufactured to EN 60269-2 and BS 88 Part 2, the BTSD42V125 features a robust offset tag construction that allows secure installation into compatible fuse holders, switch disconnectors and busbar systems. Its gG operating characteristic provides full-range protection against overloads and short circuits, helping safeguard cables and electrical equipment.

With a 125 A current rating, 415 V AC and 240 V DC voltage ratings, together with an 80 kA AC and 40 kA DC breaking capacity, the Mersen BTSD42V125 is ideal for industrial switchgear, distribution boards, motor control centres and commercial electrical installations.

Key Advantages

  • British Standard BS88 gG offset tag fuse-link.
  • 125 A current rating for industrial power distribution.
  • 415 V AC and 240 V DC rated operation.
  • 80 kA AC breaking capacity for excellent fault protection.
  • High current-limiting performance reduces thermal and mechanical stress.
  • Offset tag design allows secure mounting in compatible fusegear.

Key Features

  • Mersen BTSD offset tag fuse-link series.
  • BS Type A4 fuse-link.
  • 125 A rated current.
  • 415 V AC rated voltage.
  • 240 V DC rated voltage.
  • General-purpose gG characteristic.
  • Offset tag terminal connections.
  • Manufactured to EN 60269-2 and BS88 Part 2.

Reliable Protection for Industrial Power Systems

The Mersen BTSD42V125 provides full-range protection against overloads and short circuits in low-voltage electrical distribution systems. Its gG characteristic makes it suitable for protecting cables, switchgear, transformers and general industrial electrical equipment, while its high current-limiting performance helps minimise fault energy and equipment damage.

Designed for installation in compatible BS88 fusegear, the BTSD series is widely used throughout industrial facilities, commercial buildings and OEM equipment where dependable circuit protection and compliance with recognised standards are essential.

Typical Applications

  • Industrial power distribution.
  • Commercial distribution boards.
  • Switchgear and switch disconnectors.
  • Motor control centres.
  • Cable and feeder protection.
  • OEM electrical equipment.

Technical Specifications

Item number A1019199
Catalogue No BTSD42V125
Description British Standard fuse-link IEC BS88 gG Type A4 415VAC 240VDC 125A BTSD Offset Tag
EAN/UPC Code 3605340515503
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 70000 A²s
Melting I2t 16000 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 21 mm
Product Width 24.5 mm
Product Length 110 mm
Sell Pack Quantity 10 EA
Sell Pack Weight 0.82 kg
Sell Pack Width 120 mm
Sell Pack Length 230 mm
Sell Pack Height 40 mm
Product group Low Voltage IEC Fuses
Body/Insulating Material Ceramic
Product Weight 0.082 kg
Power Dissipation at Rated Current Value 11.5 W
HS Code 85361090
Country of Manufacture India
Fuse Class gG
Voltage 415 V

Frequently Asked Questions

What is the Mersen BTSD42V125 used for?

The BTSD42V125 protects industrial and commercial electrical circuits against overloads and short circuits in power distribution, switchgear and motor control applications.

What is the current rating of this fuse?

The BTSD42V125 has a 125 A current rating.

What voltage is the BTSD42V125 rated for?

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

What fuse characteristic does it have?

The fuse has a general-purpose gG characteristic, providing protection against both overloads and short circuits.

Which standards does the BTSD42V125 comply with?

The fuse complies with EN 60269-2 and BS88 Part 2 for low-voltage industrial fuse-links.

Trusted for Industrial Circuit Protection

Mersen BS88 fuse-links are trusted by electrical engineers, panel builders and maintenance professionals worldwide for dependable circuit protection, excellent current limitation and long-term reliability.

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