400/415 Volt Electricity Supply Distribution Carriers to IEC 60269-2/BS 88-2 – Type FH

400/415V Electricity Supply Distribution Fuse Carriers to IEC 60269-2 / BS 88-2 – Type FH J Type Fuse Carrier | Wedge Type Fuse Carrier | 82mm Fuse Carrier | 92mm Fuse Carrier | Carrier Fuse

Product Introduction

The Lawson Type FH is a robust and reliable range of Fuse Carriers designed for use in 400/415V electricity supply distribution networks across the UK, MEA and Africa. Purpose-built to accept Lawson J Type fuse-links — the wedge-contact fuse-links used throughout UK , MEA and Africa electricity supply infrastructure — the Type FH J Type Fuse Carrier provides the secure, high-integrity fuse mounting essential for safe operation in distribution boards, feeder pillars, link boxes, pole-mounted cut-outs, and heavy-duty service intakes.

Available in two sizes, the FH 82 (82mm Fuse Carrier) and the FH 92 (92mm Fuse Carrier), both versions of the Type FH Carrier Fuse holder are rated at 80kA breaking capacity at 415V a.c. and tested in compliance with IEC 60269-1, IEC 60269-2, BS 88-1, and BS 88-2 — the standards governing electricity supply distribution fuse-links and fuse carriers in the UK and internationally.

The distinctive Wedge Type Fuse Carrier design of the Type FH ensures a secure, low-resistance contact between the fuse carrier and the fuse-link, maintaining reliable electrical performance under the demanding conditions typical of electricity supply distribution installations including high fault levels, wide temperature variation, and long service intervals.

Key Features

• J Type Fuse Carrier — specifically designed for Lawson Type J electricity supply distribution fuse-links
• Wedge Type Fuse Carrier design — secure, positive wedge contact connection for reliable, low-resistance performance
• 82mm Fuse Carrier (FH 82) — for JPU Type J fuse-links rated up to 400A
• 92mm Fuse Carrier (FH 92) — for JSU Type J fuse-links rated up to 630A
• Breaking capacity: 80kA at 415V a.c. — rated for the highest fault levels encountered in UK electricity distribution networks
• Tested to IEC 60269-1, IEC 60269-2, BS 88-1, and BS 88-2 — full compliance with UK and international electricity supply standards
• Carrier Fuse format — fuse carrier withdraws independently from the base, enabling safe fuse-link inspection and replacement
• Suitable for 400/415V a.c. three-phase electricity supply distribution applications
• Compatible with Lawson Type J fuse-links with standard 82mm and 92mm fixing centres

Understanding the FH 82 and FH 92 Fuse Carriers

FH 82 — 82mm Fuse Carrier The FH 82 is the 82mm Fuse Carrier designed for use with Lawson JPU series J Type fuse-links at 82mm fixing centres. It accepts JPU Type J fuse-links up to a maximum current rating of 400A, covering the majority of standard electricity supply distribution and service intake applications. The 82mm fixing centre is the most widely used dimension in UK,MEA and African distribution network equipment and is specified across a broad range of distribution boards, feeder pillars, and cut-out bases.

FH 92 — 92mm Fuse Carrier The FH 92 is the 92mm Fuse Carrier designed for use with Lawson JSU series J Type fuse-links at 92mm fixing centres. It accepts JSU Type J fuse-links up to a maximum current rating of 630A, making it the appropriate Carrier Fuse solution for higher-current electricity supply distribution applications including large commercial and industrial service intakes, primary distribution boards, and high-capacity feeder pillar assemblies.

What is a Wedge Type Fuse Carrier?

The Wedge Type Fuse Carrier is the standard design used in UK ,MEA and African electricity supply distribution for J Type fuse-links. In this design, the fuse-link is secured between wedge-shaped contacts within the carrier, which are drawn together when the carrier is inserted into the fuse base — creating a firm, low-resistance mechanical and electrical connection. The wedge contact mechanism ensures reliable performance even after many years in service and repeated insertion and withdrawal cycles, making it the preferred J Type Fuse Carrier design for the demanding conditions of electricity distribution infrastructure.

Applications

The Lawson Type FH Fuse Carrier, J Type Fuse Carrier, and Wedge Type Fuse Carrier range is specified in:

• Electricity distribution boards — main LV distribution boards in substations and switching stations
• Feeder pillars — street-mounted electricity distribution equipment
• Link boxes — underground cable network LV link boxes and jointing chambers
• Pole-mounted cut-outs — overhead line distribution cut-out equipment
• Heavy-duty service intakes — large commercial, industrial, and multi-occupancy building service intakes
• Primary distribution centres — main incoming supply fusing at high-current distribution points
• New and replacement installations — in existing J Type fuse carrier bases at 82mm and 92mm fixing centres

Why Choose Lawson Type FH Fuse Carriers?

Lawson Fuses has been a trusted supplier to UK electricity distribution network operators, utilities, and their approved contractors for decades. The Type FH 82mm Fuse Carrier and 92mm Fuse Carrier are designed and tested to work in direct combination with Lawson’s Type J fuse-links — ensuring that the complete J Type Fuse Carrier assembly meets the performance requirements of IEC 60269-2 and BS 88-2 as a unified, certified system.

The Type J range includes all the current ratings specified in BS 88 for fuse-links with the standard 82mm and 92mm fixing centres, together with additional non-specified current ratings — and the Type FH fuse carriers are matched accordingly, giving network engineers and DNO contractors confidence that the carrier and fuse-link will perform as a coordinated protection system under all fault conditions up to 80kA at 415V a.c.

All products are manufactured under an ISO 9001 accredited quality management system with test facilities independently accredited to ISO/IEC 17025, and products are ASTA Certified to the ASTA 20 Authorisation Scheme.

Fuse Holder Specifications

Q1. What is a Fuse Carrier?

A Fuse Carrier is a removable assembly that holds a fuse-link and connects it to a fixed fuse base in an electricity supply distribution system. The fuse carrier can be withdrawn from the base to allow safe inspection, testing, and replacement of the fuse-link without disturbing the fixed wiring. The Lawson Type FH is a J Type Fuse Carrier and Wedge Type Fuse Carrier designed for use in 400/415V electricity supply distribution applications, available as the FH 82 (82mm Fuse Carrier) and FH 92 (92mm Fuse Carrier).

Q2. What is a J Type Fuse Carrier?

A J Type Fuse Carrier is a fuse carrier specifically designed to accept Lawson Type J electricity supply distribution fuse-links — the wedge-contact fuse-links used throughout UK electricity supply infrastructure in distribution boards, feeder pillars, link boxes, and cut-out equipment. The Lawson FH 82 accepts JPU series J Type fuse-links at 82mm fixing centres up to 400A, and the FH 92 accepts JSU series J Type fuse-links at 92mm fixing centres up to 630A.

Q3. What is a Wedge Type Fuse Carrier and how does it work?

A Wedge Type Fuse Carrier uses wedge-shaped contacts to grip and secure the fuse-link as the carrier is inserted into the fuse base. The wedge action draws the contacts firmly together, creating a low-resistance mechanical and electrical connection that remains secure under vibration, thermal cycling, and high fault current events. This is the standard contact design used in UK J Type electricity supply distribution fuse carriers and is the basis of the Lawson Type FH range.

Q4. What is the difference between the FH 82 (82mm Fuse Carrier) and the FH 92 (92mm Fuse Carrier)?

The key difference is the fixing centre dimension — the distance between the contact fixing points — and the maximum current rating. The FH 82 (82mm Fuse Carrier) has 82mm fixing centres and accepts JPU J Type fuse-links rated up to 400A, while the FH 92 (92mm Fuse Carrier) has 92mm fixing centres and accepts JSU J Type fuse-links rated up to 630A. The fixing centre must match the fuse base in which the carrier is being installed, so the correct size must be specified for each application.

Q5. What breaking capacity does the Lawson Type FH Fuse Carrier have?

Both the FH 82 and FH 92 Fuse Carriers are rated at a breaking capacity of 80kA at 415V a.c. — tested in compliance with IEC 60269-1, IEC 60269-2, BS 88-1, and BS 88-2. This ensures the complete carrier and fuse-link assembly can safely interrupt the highest fault currents likely to be encountered at LV distribution points on the UK electricity supply network.

Q6. What standards do the Type FH Fuse Carriers comply with?

The Lawson Type FH J Type Fuse Carriers are tested and certified in compliance with IEC 60269-1, IEC 60269-2, BS 88-1, and BS 88-2 — the international and British Standards that govern low-voltage electricity supply distribution fuse-links and their associated carriers. All Lawson products are ASTA Certified and manufactured under an ISO 9001 accredited quality management system.

Q7. Where are J Type Fuse Carriers used?

J Type Fuse Carriers are used throughout the UK electricity supply distribution network in applications including LV distribution boards in substations, feeder pillars, street-mounted link boxes, pole-mounted cut-outs on overhead lines, and heavy-duty service intakes for large commercial, industrial, and multi-occupancy residential buildings. The 82mm Fuse Carrier is the most widely used size in standard distribution equipment, while the 92mm Fuse Carrier is used in higher-current applications up to 630A.

Q8. What J Type fuse-links are compatible with the FH 82 and FH 92 Fuse Carriers?

The FH 82 (82mm Fuse Carrier) is compatible with Lawson JPU series J Type fuse-links with 82mm fixing centres, rated up to 400A. The FH 92 (92mm Fuse Carrier) is compatible with Lawson JSU series J Type fuse-links with 92mm fixing centres, rated up to 630A. Always ensure the fuse-link current rating, voltage rating, and fixing centre dimension are matched correctly to the carrier and base being used.

Q9. Can the Lawson Type FH Fuse Carrier be used as a replacement in existing installations?

Yes. The Lawson Type FH Wedge Type Fuse Carrier and J Type Fuse Carrier are designed to the standard fixing centre dimensions of 82mm and 92mm used in UK electricity supply distribution equipment, making them suitable as direct replacements in existing distribution bases and cut-out equipment of the appropriate size and type. Always confirm the fixing centre dimension and current rating of the installation before ordering replacement carriers.

Q10. How do I order the Lawson Type FH Fuse Carrier?

The Lawson Type FH 82mm Fuse Carrier (FH 82) and 92mm Fuse Carrier (FH 92) are available through the Lawson Fuses sales team and their network of authorised sales partners and electrical wholesalers across the UK. Contact Lawson Fuses directly for trade pricing, availability, and technical support for your electricity distribution installation or network maintenance requirements.