High-performance BS88 gG Type B1 fuse-link offering reliable circuit protection for industrial and commercial power systems up to 415VAC and 240VDC. Features robust central bolted tags and ceramic body for durability.
£18.26
The Mersen BTBC42V40 is a premium-quality BS88 gG central bolted tag fuse link designed to provide dependable general-purpose protection for industrial and commercial low voltage electrical systems. Manufactured by Mersen, this fuse offers reliable protection against overloads and short circuits while delivering excellent current limiting performance for enhanced equipment safety.
Designed in accordance with EN 60269-2 and BS88 Part 2, the BTBC42V40 is suitable for protecting electrical distribution systems, switchgear, cables and industrial equipment. Its central bolted tag construction allows secure mounting directly onto busbars, compatible fuse holders and switch disconnectors, making it ideal for demanding industrial applications.
With a 40 A current rating, 415 V AC and 240 V DC voltage ratings, the BTBC42V40 delivers dependable circuit protection across a wide range of industrial power distribution systems. Its high breaking capacity and compact design help minimise equipment damage during fault conditions while ensuring long-term operational reliability.
The Mersen BTBC42V40 provides full-range gG protection, safeguarding electrical circuits against both overloads and short circuits. Its high current limiting capability reduces thermal and mechanical stress on downstream equipment, helping to improve system reliability and minimise downtime.
Its central bolted tag design enables secure installation within industrial switchboards, fuse switches and power distribution equipment where dependable low voltage protection is essential.
| Item number | K226306 |
|---|---|
| Catalogue No | BTBC42V40 |
| Description | British Standard fuse-link IEC BS88 gG Type B1 415VAC 240VDC 40A BTBC Central Bolted Tag |
| EAN/UPC Code | 3605340267839 |
| Rated voltage AC IEC | 415 V |
| Rated voltage DC IEC | 240 V |
| Ampere Rating | 40 A |
| RoHS Compliant | Yes |
| AC or DC | AC/DC |
| Speed/Characteristic | gG |
| Fuse Size | B1 |
| Mounting | Bolted |
| Clearing I2t At Rated Voltage | 5850 A²s |
| Melting I2t | 1300 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 | 1.255 kg |
| Sell Pack Width | 140 mm |
| Sell Pack Length | 146 mm |
| Sell Pack Height | 56 mm |
| Product group | Low Voltage IEC Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 0.1255 kg |
| Power Dissipation at Rated Current Value | 4 W |
| HS Code | 85361050 |
| Country of Manufacture | India |
The BTBC42V40 is a BS88 gG fuse link designed to protect electrical circuits against overloads and short circuits in industrial and commercial installations.
This fuse has a 40 A current rating.
The fuse is rated for 415 V AC and 240 V DC operation.
The gG operating characteristic provides full-range protection against both overload and short circuit faults.
The BTBC42V40 is commonly installed in compatible BS88 fuse holders, busbars, switch disconnectors and industrial power distribution equipment.
Mersen BS88 fuse links are trusted by electrical engineers, OEMs and panel builders for providing reliable circuit protection, high fault interruption capability and dependable long-term performance in demanding industrial environments.
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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.
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...
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...