0.5mm² 2491B Cable (H05Z-K) LSZH Grey Class 5 Flexible 300-500V LSZH-0.5-GREY-1

The LSZH-0.5-GREY-1 is a 0.5mm² 2491B single core LSZH panel wiring cable rated at 300/500V, supplied in grey on a 100m reel. This H05Z-K flexible equipment wire is designed for internal wiring of appliances, switchgear, instrument panels and metering equipment, particularly where low smoke and zero halogen properties are essential. Its Class 5 flexible copper conductor makes it ideal for confined spaces and applications requiring easy routing and termination.

Key Features

• Low Smoke Zero Halogen (LSZH) Insulation: Cross-linked EI5 insulation minimises toxic fume and smoke emission during a fire, protecting both personnel and sensitive equipment.
• Class 5 Flexible Conductor: Plain annealed copper with 16/0.2mm stranding provides excellent flexibility for tight panel wiring and equipment connections.
• 300/500V Voltage Rating: Rated H05Z-K for reliable performance in control panels, switchgear and instrumentation circuits.
• Compact 2.5mm Approximate Diameter: Small overall size allows high-density wiring in limited panel space.
• Wide Temperature Range: Suitable for continuous operation from -15°C to +90°C, covering a broad range of industrial environments.
• BASEC Certified: Independent third-party certification provides assurance of consistent quality and compliance.
• 100m Reel Length: Convenient reel size for panel building and equipment wiring projects, reducing waste.
• 20 AWG Equivalent: Simplifies cross-referencing for projects using American Wire Gauge specifications.

Applications

This 0.5mm² 2491B LSZH cable is suited to the internal wiring of control panels, switchgear, instrument panels, metering equipment and appliances. It is particularly specified in environments where smoke and toxic fumes from a fire could threaten life or damage sensitive equipment — such as public buildings, transport infrastructure, data centres and enclosed industrial installations. The flexible Class 5 conductor ensures easy routing around terminal blocks and components within equipment enclosures.

Standards and Compliance

Manufactured to BS EN 50525-3-41 (formerly BS7211) and IEC 60228, with fire performance to BS EN/IEC 60332-1-2, BS EN 50267-2-1 and BS EN/IEC 61034-1, and BASEC certified.

Supplied in grey, 100m reel. Order code: 2491b-h05z-k-lszh-cable-0-5-grey-100m.

Frequently Asked Questions

What is the conductor stranding of this 0.5mm² 2491B LSZH cable?

The conductor comprises 16 strands of 0.2mm plain annealed copper, giving it Class 5 flexibility.

What is the difference between 2491B H05Z-K and H07Z-K cable?

H05Z-K is rated at 300/500V and covers conductor sizes from 0.5mm² upwards, while H07Z-K is rated at 450/750V for higher voltage applications. Both share the same LSZH construction and are covered under BS EN 50525-3-41.

What is the bending radius for this cable?

The minimum bending radius is 3 times the overall diameter — approximately 7.5mm for this 2.5mm diameter cable.

Can this cable be used in high-temperature environments?

Yes, it is rated for continuous use from -15°C to +90°C.

Where can I buy 0.5mm² 2491B Cable (H05Z-K) LSZH Grey Class 5 Flexible 300-500V LSZH-0.5-GREY-1 in the UK?

CSE Distributors, with branches in Wooburn Green and Southampton, supply this cable alongside a comprehensive range of electrical and industrial products. A family-run business with over 50 years' experience, CSE are known for genuine technical support, same-day despatch and hundreds of highly positive customer reviews.