230/240 & 400/415 Volt Compact Dimension Fuse-Links to IEC 60269-2/BS 88-2 – Type CDS

230/240V & 400/415V Compact Dimension Clip in Fuse – Type CDS (NS, SS & MES)

Product Introduction

The Lawson Type CDS is a compact dimension Clip in Fuse range designed for use in single-phase and three-phase commercial and industrial electrical installations. Available as an NS Type Fuse, SS Type Fuse, and MES Type Fuse, these Clipfit Type fuse-links feature an Offset Blade Contact design that ensures a secure, reliable connection when fitted into compatible Clipfit fuse holders or suitable distribution fusegear.

Fully compliant with IEC 60269-2 and BS 88-2, the Type CDS range covers BS88 E1, BS88 F1, and BS88 F2 fuse categories — making it one of the most versatile compact fuse-link solutions available for UK and international electrical systems.With rated voltages of 240V a.c. and 415V a.c., and certified at a test recovery voltage of at least 110%, these fuse-links deliver outstanding short-circuit protection across a wide range of applications.

Key Features

• NS Type Fuse (BS88 F1) — rated 415V, breaking capacity 80kA, available 2A–63A
• SS Type Fuse (BS88 E1) — rated 240V, breaking capacity 20kA, available 2A–32A
• MES Type Fuse (BS88 F2) — rated 415V, breaking capacity 80kA, available 10A–63A
• Offset Blade Contact design for secure clip-fit engagement
• Clipfit Type — compatible with Lawson Type LCF Clip Fit Fuse Holders
• Compliant with IEC 60269-2 / BS 88-2 standards
• Certified at test recovery voltage of at least 110%
• Suitable for single-phase (230/240V) and three-phase (400/415V) installations

Applications

The Type CDS NS Type Fuse and companion fuse-links are ideal for:

• Industrial control panels and switchgear
• Commercial distribution boards and consumer units
• Three-phase motor protection circuits
• Building services and metering installations
• Any installation requiring BS88 E1, F1, or F2 rated overcurrent protection

Why Choose Lawson Type CDS?

Lawson’s Clipfit Type compact dimension fuse-links are precision-manufactured to deliver consistent, dependable fault protection. The Offset Blade Contact ensures a positive, low-resistance connection every time, while full compliance with IEC 60269 -2/ BS 88-2 gives engineers and installers the confidence of internationally recognised performance standards. Whether you need an NS Type Fuse for a three-phase panel or an SS Type Clip in Fuse for a single-phase circuit, the Type CDS range has you covered.

Q1. What is an NS Type Fuse?

An NS Type Fuse is a compact dimension fuse-link rated at 415V a.c. with a breaking capacity of 80kA, conforming to BS 88-2 reference F1. Lawson’s NS Type Fuse is part of the Type CDS Clipfit range and is available in current ratings from 2A to 63A, making it suitable for three-phase industrial and commercial installations.

Q2. What does “Clip in Fuse” mean?

A Clip in Fuse, also known as a Clipfit Type fuse-link, is designed with an Offset Blade Contact that clips securely into a compatible fuse holder without requiring tools or additional fasteners. This makes installation, inspection, and replacement faster and safer compared to traditional bolt-in fuse designs.

Q3. What is the difference between BS88 E1, BS88 F1, and BS88 F2?

These are BS 88-2 fuse categories that define the physical size and voltage rating of the fuse-link:

• BS88 E1 — 240V a.c., 51mm length (SS Type, single-phase applications)
• BS88 F1 — 415V a.c., 62mm length (NS Type Fuse, three-phase applications)
• BS88 F2 — 415V a.c., 69mm length (MES Type, higher current three-phase applications)

Q4. What is an Offset Blade Contact and why does it matter?

The Offset Blade Contact is the connection interface on the Type CDS Clip in Fuse. Its offset design ensures correct orientation during installation, preventing incorrect fitting and maintaining a firm, low-resistance electrical contact within the fuse holder — contributing to safer, more reliable circuit protection.

Q5. What is a Clipfit Type fuse-link?

A Clipfit Type fuse-link is a compact dimension fuse designed to clip directly into a Clipfit fuse holder. Lawson’s Clipfit Type fuse-links use an Offset Blade Contact for a positive snap-fit connection and are specifically designed to work with the Lawson Type LCF Clip Fit Fuse Holder range.

Q6. What current ratings are available for the NS Type Fuse (BS88 F1)?

The NS Type Fuse is available in the following current ratings: 2A, 4A, 6A, 10A, 16A, 20A, 25A, and 32A as standard. Motor-rated variants (M-rated) are also available, including NS20M25, NS20M32, NS32M40, NS32M50, and NS32M63, for motor starter and motor protection applications.

Q7. Are the Type CDS fuse-links compliant with IEC 60269?

Yes. The entire Type CDS range — including the NS Type Fuse (BS88 F1), SS Type (BS88 E1), and MES Type (BS88 F2) — is fully compliant with IEC 60269-2 and BS 88-2 standards. The range is certified at a test recovery voltage of at least 110%.

Q8. Which fuse holder is compatible with the Type CDS Clip in Fuse?

The Type CDS Clip in Fuse is designed for use with the Lawson Type LCF Clip Fit Fuse Holder, as well as other suitable distribution fusegear. The LCF holder is available in matching current ratings and wiring configurations to suit a variety of panel layouts.

Q9. Can I use the NS Type Fuse in both single-phase and three-phase systems?

The NS Type Fuse (BS88 F1) is rated at 415V a.c. and is specifically designed for three-phase 400/415V applications. For single-phase 230/240V circuits, the SS Type Fuse (BS88 E1) from the same CDS range is the appropriate choice.

Q10. How do I order the Type CDS NS Type Fuse or Clip in Fuse?

You can contact the Lawson Fuses sales team directly or reach one of their authorised sales partners for pricing, technical guidance, and availability. A full product information sheet with dimensions and full part number listings is available to download from the product page.