230/240 Consumer Unit Fuse-Links to IEC 60269-3/BS 88-3 and BS 1361 – Type L

230/240V Consumer Unit Fuse-Links to IEC 60269-3 / BS 88-3 & BS 1361 – Type L

Product Introduction

The Lawson Type L is a high-quality BS1361 Fuse and Consumer Unit Fuse designed for use in household consumer units and single-phase electrical installations. Engineered to meet the demanding requirements of IEC 60269-3, BS 88-3, and BS 1361, this fuse-link provides dependable overcurrent and short-circuit protection for domestic and light commercial circuits.

Rated at 240V a.c. with a breaking capacity of up to 16.5kA, the Type L Consumer Unit Fuse can be fitted into Pullcap Fuse-Holders or other suitable fuse holders, offering flexibility across a wide range of installation types. In addition to the current ratings specified under BS 1361, additional ratings certified to BS 88 are included in the range to meet broader installation requirements.

Key Features

• BS 1361 compliant — the recognised standard for consumer unit fuse-links in the UK
• IEC 60269-3 / BS 88-3 certified — internationally recognised overcurrent protection
• Rated voltage: 240V a.c. — suitable for single-phase domestic and light commercial circuits
• Breaking capacity: up to 16.5kA — for fault levels typical of household and single-phase installations
• Utilisation category gG — general purpose overload and short-circuit protection
• BS 1361 colour-coded ranges for quick visual identification
• Compatible with Pullcap Fuse-Holders and other suitable fuse holders
• Additional BS 88-certified ratings available beyond standard BS 1361 ratings

Applications

The Lawson Type L BS1361 Fuse is ideal for:

• Household consumer units and distribution boards
• Single-phase domestic electrical installations
• Light commercial and small business premises
• Replacement fusing in existing BS 1361 compliant installations
• New installations requiring IEC 60269-3 / BS 88-3 certified fuse protection

Why Choose Lawson Type L Consumer Unit Fuse?

Lawson Fuses has been a trusted manufacturer of high-quality fuse-links since 1938. The Type L Consumer Unit Fuse is ASTA Certified and manufactured under an independently accredited ISO 9001 quality management system, with test facilities accredited to ISO/IEC 17025. When you specify a Lawson BS1361 Fuse, you are choosing a product backed by decades of British engineering excellence and active participation in BSI, IEC, and CENELEC standards committees.

Q1. What is a BS1361 Fuse?

A BS1361 Fuse is a cartridge fuse-link manufactured to comply with British Standard BS 1361, which specifies requirements for fuses used in household consumer units and single-phase electrical installations. It provides reliable overcurrent and short-circuit protection for domestic circuits at 240V a.c.

Q2. What is the difference between a BS1361 Fuse and a BS 88-3 / IEC 60269-3 fuse?

BS 1361 is the traditional British Standard for consumer unit fuses. BS 88-3 and IEC 60269-3 are the current international and British standards that supersede and incorporate BS 1361 requirements. The Lawson Type L is certified to all three standards, making it backward compatible with existing BS 1361 installations while also meeting the latest IEC and BS requirements.

Q3. What is a Consumer Unit Fuse?

A Consumer Unit Fuse is a fuse-link specifically designed for installation in the consumer unit (also known as a fuse board or distribution board) in a domestic or single-phase property. It protects individual circuits — such as lighting, ring main, or cooker circuits — from overload and short-circuit faults.

Q4. What voltage and breaking capacity does the Lawson Type L offer?

The Lawson Type L Consumer Unit Fuse is rated at 240V a.c. with a breaking capacity of 16.5kA — suitable for fault levels commonly found in household and single-phase commercial installations.

Q5. What fuse holder is compatible with the Type L Consumer Unit Fuse?

The Type L BS1361 Fuse is designed to fit into Pullcap Fuse-Holders as well as other suitable fuse holders. Always ensure the fuse holder used is rated and certified for the voltage, current, and fault level of the installation.

Q6. What current ratings are available for the Lawson Type L?

The Type L range covers the current ratings specified under BS 1361, with additional ratings certified to BS 88 also included to meet broader installation requirements. Please download the product information sheet or contact the Lawson Fuses sales team for the complete current rating range.

Q7. What do the BS 1361 colour codes mean?

BS 1361 specifies colour coding for consumer unit fuses to help electricians quickly identify the correct current rating during installation and replacement. The colour corresponds to a specific ampere rating, reducing the risk of incorrect fuse selection on site.

Q8. Is the Lawson Type L Consumer Unit Fuse ASTA certified?

Yes. Lawson Fuses products, including the Type L BS1361 Fuse, are ASTA Certified and comply with the ASTA 20 Authorisation Scheme for low-voltage fuse-links. The company’s operations are independently accredited to ISO 9001, and its test facilities are accredited to ISO/IEC 17025.

Q9. Can the Type L Consumer Unit Fuse be used in commercial installations?

Yes. While primarily designed for household consumer units, the Type L can also be used in other single-phase installations with fault levels up to 16.5kA, including light commercial premises, small business units, and outbuildings with single-phase supply.

Q10. How do I order the Lawson Type L BS1361 Fuse?

Contact the Lawson Fuses sales team directly or reach out to an authorised sales partner. A full product information sheet with current ratings and part numbers is available to download from the product page.