230/240 Volt Street Lighting Fuse-Links to IEC 60269-1/BS 88-1 – Type LST

230/240V Street Lighting Fuse-Links to IEC 60269-1 / BS 88-1 – Type LST

Product Introduction

The Lawson Type LST is a specialist Street Lighting Fuse engineered specifically for use in single-phase street lighting cut-outs and similar outdoor public lighting installations. As a trusted Lighting Fuse across the UK public infrastructure sector, the Type LST is fully compliant with IEC 60269-1, BS 88-1, and BS 7654 — the key standards governing street lighting fuse protection in the UK.

Approved by leading authorities including Lloyds Register of Shipping and Electricity Supply Authorities Lawson Fuses, the Type LST Street Lighting Fuse has a proven track record across local authority, highways, and utility applications throughout the UK. With a rated voltage of 240V a.c. and a breaking capacity of 20kA, the Type LST provides dependable overcurrent and short-circuit protection for street lighting circuits in all weather conditions and environments.

Key Features

• Dedicated Street Lighting Fuse — designed specifically for single-phase street lighting cut-outs
• IEC 60269-1 / BS 88-1 compliant — meets international and British standards for low-voltage fuse protection
• BS 7654 compliant — in line with UK Electricity Supply Industry Standards for street lighting
• Rated voltage: 240V a.c. — for single-phase public lighting supply circuits
• Breaking capacity: 20kA — suitable for fault levels encountered in street lighting cut-out installations
• Utilisation category gG — general purpose overload and short-circuit protection
• Current ratings: 2A to 32A — covers a wide range of street lighting circuit configurations
• Offset tag design — with fixing centres of 38mm (standard) for secure bolted connections in cut-out bases
• Approved by Lloyds Register of Shipping and Electricity Supply Authorities
• Compatible with a complementary range of solid/neutral links

Applications

The Lawson Type LST Street Lighting Fuse is the specified Lighting Fuse for:

• Single-phase street lighting cut-outs on public highway installations
• Column-mounted cut-out bases and feeder pillar units
• Local authority and highways department street lighting networks
• Utility and electricity supply authority lighting circuits
• Amenity and park lighting installations
• Traffic signal supply cut-outs and similar public infrastructure applications

Why Choose Lawson Type LST?

Lawson Fuses has been a trusted partner to UK electricity supply authorities, local councils, and highways contractors for decades. The Type LST Street Lighting Fuse complies with UK Electricity Supply Industry Standards and BS 7654 Lawson Fuses, and is approved by leading industry authorities — giving specifiers, contractors, and maintenance teams complete confidence in the product’s performance and compliance. Manufactured under an ISO 9001 accredited quality management system with test facilities accredited to ISO/IEC 17025, every Lawson Lighting Fuse is built to the standards the UK’s public lighting infrastructure demands.

Q1. What is a Street Lighting Fuse?

A Street Lighting Fuse is a specialist fuse-link designed for use in single-phase street lighting cut-outs — the protective devices mounted at the base of lamp columns or within feeder pillars that connect individual street lights to the public electricity supply. The Lawson Type LST is a purpose-engineered Street Lighting Fuse rated at 240V a.c. with a breaking capacity of 20kA, approved for use by UK Electricity Supply Authorities and compliant with IEC 60269-1, BS 88-1, and BS 7654.

Q2. What standard does the Lawson Type LST Lighting Fuse comply with?

The Type LST Street Lighting Fuse complies with three key standards — IEC 60269-1 (the international standard for low-voltage fuses), BS 88-1 (the British Standard equivalent), and BS 7654 (the UK Electricity Supply Industry Standard for street lighting cut-out fuse-links). It has also been approved by Lloyds Register of Shipping and Electricity Supply Authorities.

Q3. What current ratings are available for the Type LST Street Lighting Fuse?

The Type LST Lighting Fuse is available in eight current ratings: 2A, 4A, 6A, 10A, 16A, 20A, 25A, and 32A — covering the full range of circuit protection requirements encountered in single-phase street lighting installations, from individual lamp columns to multi-lamp feeder circuits.

Q4. What are the physical dimensions of the Type LST Street Lighting Fuse?

The standard Type LST Street Lighting Fuse measures 48mm in length and 12.7mm in diameter, with offset tags at 38mm fixing centres for secure bolted connection in cut-out bases. Some ratings have slightly different dimensions — please refer to the product information sheet or contact Lawson Fuses for confirmation of the correct size for your application.

Q5. What is a street lighting cut-out?

A street lighting cut-out is a protective enclosure mounted at the base of a lamp column or in a feeder pillar that houses the fuse-link connecting the street light to the public electricity supply. The cut-out protects both the supply cable and the column wiring from overcurrent and short-circuit faults. The Lawson Type LST is the approved Lighting Fuse for use in these cut-out units across UK highways and local authority lighting networks.

Q6. What is the breaking capacity of the Type LST Street Lighting Fuse?

The Type LST has a breaking capacity of 20kA at 240V a.c. — sufficient to safely interrupt the maximum prospective fault currents likely to be encountered at typical street lighting supply points across the UK distribution network.

Q7. Is the Type LST approved by Electricity Supply Authorities?

Yes. The Lawson Type LST Street Lighting Fuse has been approved by leading industry authorities including Lloyds Register of Shipping and Electricity Supply Authorities, making it a fully accepted and specified product for use in UK public street lighting infrastructure.

Q8. Are solid/neutral links available to complement the Type LST Street Lighting Fuse?

Yes. Lawson Fuses offers a complementary range of solid/neutral links (Type SL) designed to work alongside the Type LST Lighting Fuse in street lighting cut-out installations. Solid links are used in place of fuse-links in the neutral conductor, where overcurrent protection is not required but a secure, reliable connection is still needed.

Q9. Can the Type LST be used in applications other than street lighting?

While the Type LST is specifically designed and approved as a Street Lighting Fuse for single-phase cut-out installations, it may also be suitable for other similar single-phase installations where IEC 60269-1 / BS 88-1 compliant fuse protection is required at 240V a.c. with a fault level up to 20kA. Always consult the product information sheet and confirm compliance with the relevant installation standard before specifying.

Q10. How do I order the Lawson Type LST Street Lighting Fuse?

The Type LST Lighting Fuse is 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 by current rating, and technical support for your street lighting project.