690 Volt Industrial Fuse-Holders to IEC 60269-2/BS 88-2 – Type LBI

690V Boltin Industrial Fuse-Holders to IEC 60269-2 / BS 88-2 – Type LBI Industrial Fuse Holder | Bolt-in Fuse Holder | Bolted Type Fuse Holder | BS Bolted Type Holder | Heavy Duty Fuse Holder | Bakelite BS Type Fuse Holder | 415V AC Holder

Product Introduction

The Lawson Type LBI is the definitive Industrial Fuse Holder for use with BS 88-2 bolted-tag industrial fuse-links across the full range of UK and international industrial electrical installations. As a certified Bolt-in Fuse Holder and BS Bolted Type Holder, the Type LBI accommodates Lawson’s complete range of N&T and SS series offset and central tag fuse-links — providing the secure, bolted-connection fuse mounting that industrial distribution panels, motor control centres, and switchgear assemblies demand.

Available in current ratings of 20A, 32A, 63A, 100A, and 200A, the Lawson Type LBI Heavy Duty Fuse Holder is rated at 690V a.c. — making it suitable for both standard 415V AC Holder applications in UK industrial installations and higher-voltage 690V systems including offshore, marine, and heavy industrial environments. The classic Bakelite BS Type Fuse Holder body construction provides the electrical insulation, mechanical robustness, and arc-containment performance required for industrial-grade bolted fuse holder applications across all BS 88-2 referenced fuse sizes from A1 to B2.

Three wiring configurations — Double Front Connected (FC/FC), Front/Back Connected (FC/BC), and Double Back Connected (BC/BC) — combined with available colour options in Black, White, and Green (20A, 32A, and 63A), spare carriers, cable shrouds, and DIN-Rail Adaptors, make the Type LBI one of the most versatile and complete Bolted Type Fuse Holder ranges available from a UK manufacturer. Fully compliant with IEC 60269-2 and BS 88-2, and ASTA Certified to the ASTA 20 Scheme, the Type LBI is the trusted Bolt-in Fuse Holder for industrial engineers and panel builders across the UK.

Key Features

• Industrial Fuse Holder — for BS 88-2 bolted-tag industrial fuse-links (NIT A1, TIA A2, TIS A3, TCP A4, TF B2)
• Bolt-in Fuse Holder — bolted tag connection system for secure, reliable, low-resistance industrial fuse mounting
• BS Bolted Type Holder — designed and certified for use with BS 88-2 / IEC 60269-2 bolted-tag industrial fuse-links
• Bolted Type Fuse Holder in five current ratings: 20A, 32A, 63A, 100A, and 200A
• Heavy Duty Fuse Holder — robust construction rated for demanding industrial panel and switchgear applications
• Bakelite BS Type Fuse Holder body — traditional thermosetting insulation construction offering excellent arc-containment and mechanical durability
• 415V AC Holder and 690V rated — suitable for UK 415V and higher-voltage 690V industrial installations
• Three wiring configurations: Double Front Connected (FC/FC), Front/Back Connected (FC/BC), Double Back Connected (BC/BC)
• Colour options: Standard Black (BK); White (WH) available across all ratings; Green (GN) available for 20A, 32A, and 63A
• DIN-Rail Adaptor available for all ratings (Ref: LBI 20 DA to LBI 200 DA) — for DIN rail panel mounting
• Spare carriers and spare cable shrouds (grey) available for all ratings — simplifying maintenance and sparing
• Compliant with IEC 60269-2 / BS 88-2 — ASTA Certified to the ASTA 20 Scheme
• Manufactured under ISO 9001 accredited quality management system

Applications

The Lawson Type LBI Industrial Fuse Holder, Bolt-in Fuse Holder, and Heavy Duty Fuse Holder range is specified across the full range of industrial and commercial electrical engineering applications:

• Industrial distribution boards and motor control centres (MCCs) — main and sub-circuit fusing in 415V and 690V three-phase industrial panels
• Switchfuse units and fusegear assemblies — bolted fuse holder mounting for BS 88-2 fuse-links in industrial switchgear
• Machine tool and automation panels — industrial fuse holder protection for sub-circuit and motor circuit fusing
• Transformer primary and secondary protection — bolted tag fuse holder mounting for transformer circuit protection
• 690V industrial installations — the 415V AC Holder and 690V rating makes the Type LBI suitable for higher-voltage systems in offshore, marine, and heavy industrial applications
• Motor circuit protection — using compatible gM fuse-links in LBI 20, 32, 63, and 100 ratings with appropriate carrier matching
• Busbar-mounted and panel-mounted assemblies — using the DIN-Rail Adaptor for flexible installation in modern panel equipment
• Replacement and maintenance — like-for-like replacement of existing bolted fuse holders in installed BS 88-2 industrial panels

Why Choose Lawson Type LBI?

The Lawson Type LBI BS Bolted Type Holder and Bolt-in Fuse Holder range has been a trusted component in UK and international industrial switchgear and distribution equipment for decades. Its Bakelite BS Type Fuse Holder construction delivers the mechanical robustness and arc-containment performance required by demanding industrial environments, while the full range of three wiring configurations, five current ratings from 20A to 200A, colour options, spare carriers, cable shrouds, and DIN-Rail Adaptors provides panel builders and electrical contractors with maximum flexibility in any installation.

With 690V a.c. rating — well above the 415V requirement of standard UK industrial installations — the Type LBI Heavy Duty Fuse Holder is suitable for all UK three-phase applications as well as higher-voltage European and international industrial systems. All products comply with IEC 60269-2 and BS 88-2, are ASTA Certified to the ASTA 20 Scheme, and are manufactured under an ISO 9001 accredited quality management system with test facilities accredited to ISO/IEC 17025.

For White, substitute WH for BK. For Green, substitute GN for BK (20A, 32A and 63A only).

Wiring Configurations

The Lawson Type LBI Bolt-in Fuse Holder is available in three wiring configurations to suit different panel layouts and cable entry requirements

Compatible Fuse-Links by Rating

Accessories

Q1. What is a Bolt-in Fuse Holder?

A Bolt-in Fuse Holder (also known as a Bolted Type Fuse Holder or BOLTIN holder) is an industrial fuse holder in which the fuse-link is secured to the holder by bolting its fixing tags directly to the holder’s contact terminals using fixing bolts. Unlike clip-fit or pull-cap systems, the Bolt-in Fuse Holder creates a rigid, high-current-carrying bolted connection between the fuse-link and the holder — providing the lowest contact resistance and highest current-carrying reliability for heavy industrial applications. The Lawson Type LBI is a Bolt-in Fuse Holder for BS 88-2 offset and central tag fuse-links, rated 690V in current ratings from 20A to 200A.

Q2. What is a BS Bolted Type Holder?

A BS Bolted Type Holder is an industrial fuse holder specifically designed and certified for use with BS 88-2 bolted-tag fuse-links — the standard UK industrial fuse format using fixed bolted connections at defined fixing centres (A1 through B2 in the Lawson N&T range). The Lawson Type LBI is a BS Bolted Type Holder covering BS 88 references A1 (NIT), A2 (TIA), A3 (TIS), A4 (TCP), and B2 (TF) in current ratings from 20A to 200A, rated 690V a.c. and tested to IEC 60269-2 / BS 88-2.

Q3. What is a Bakelite BS Type Fuse Holder?

The Bakelite BS Type Fuse Holder refers to the traditional thermosetting plastic (Bakelite or similar phenolic resin compound) body construction used in BS industrial bolted fuse holders. Bakelite and similar thermosetting materials offer excellent electrical insulation, high thermal resistance, and good mechanical strength — making them well suited to the demanding temperature and arc-energy environment of an industrial Heavy Duty Fuse Holder during high fault current interruption events. The Type LBI Bolt-in Fuse Holder features this robust insulated body construction across all ratings.

Q4. What current ratings are available for the Type LBI Industrial Fuse Holder?

The Lawson Type LBI Industrial Fuse Holder is available in five current ratings: 20A (compatible with NIT A1 fuse-links), 32A (TIA A2), 63A (TIS A3), 100A (TCP A4), and 200A (TF B2). Each current rating is matched to the corresponding BS 88 fuse-link reference (A1 through B2), and all are rated at 690V a.c.

Q5. Is the Type LBI suitable as a 415V AC Holder for UK industrial installations?

Yes. While the Lawson Type LBI Bolt-in Fuse Holder is rated at 690V a.c. — making it suitable for higher-voltage European and international industrial systems — it is fully suitable as a 415V AC Holder for standard UK 400/415V three-phase industrial distribution, motor control, and switchgear applications. The 690V rating provides a generous safety margin above the UK standard 415V supply voltage.

Q6. What wiring configurations are available for the Type LBI Heavy Duty Fuse Holder?

The Type LBI Industrial Fuse Holder is available in three wiring configurations: Double Front Connected (FC/FC) — both cables connect at the front; Front/Back Connected (FC/BC) — incoming at the front, outgoing at the rear; and Double Back Connected (BC/BC) — both cables at the rear. This choice of configurations allows the Type LBI Bolted Type Fuse Holder to be installed in virtually any panel wiring arrangement.

Q7. What colour options are available for the Type LBI Bolt-in Fuse Holder?

The standard colour is Black (BK). White (WH) is available across all five current ratings (20A–200A) by substituting WH for BK in the reference. Green (GN) is available for the 20A, 32A, and 63A ratings only, again by substituting GN for BK — useful for neutral conductor identification in three-phase and four-wire wiring systems.

Q8. Are DIN-Rail Adaptors available for the Type LBI Industrial Fuse Holder?

Yes. DIN-Rail Adaptors (reference LBI 20 DA through LBI 200 DA) are available for all five current ratings of the Type LBI Bolt-in Fuse Holder, enabling mounting on standard 35mm DIN rails within modern panel assemblies and distribution boards — in addition to direct panel or busbar mounting.

Q9. What fuse-links are compatible with the Lawson Type LBI Bolt-in Fuse Holder?

The Type LBI BS Bolted Type Holder is compatible with Lawson Type N&T and Type SS series BS 88-2 bolted-tag fuse-links in the matching BS reference size: NIT (A1) for 20A holders, TIA (A2) for 32A, TIS (A3) for 63A, TCP (A4) for 100A, and TF / CTF (B2) for 200A. Solid/neutral links (SLA1 through SLB2) are also available for use in the neutral conductor position within the fuse holder. Always confirm that the BS 88 reference size and fixing centre dimension of the fuse-link match the holder being used.

Q10. Are spare carriers and cable shrouds available for the Type LBI Industrial Fuse Holder?

Yes. Spare carriers (CA BK) and spare cable shrouds in grey (SH) are available for all five current ratings of the Type LBI Heavy Duty Fuse Holder — 20A, 32A, 63A, 100A, and 200A. These accessories allow individual components to be replaced during maintenance without changing the complete holder assembly, reducing maintenance costs and installation downtime.