0.75mm² 2491B Cable (H05Z-K) LSZH White Class 5 Flexible 300-500V LSZH-0.75-WHITE-1

The LSZH-0.75-WHITE-1 is a 0.75mm² 2491B single core LSZH panel wiring cable (H05Z-K) in white, supplied on a 100m reel. This flexible, Class 5 conductor cable is rated 300/500V and designed for internal wiring of appliances, switchgear, instrument panels, and metering equipment where low smoke and zero halogen properties are essential.

Manufactured to BS EN 50525-3-41 (formerly BS7211), this equipment wire features cross-linked LSZH insulation that significantly reduces the emission of toxic fumes and dense smoke in the event of a fire — making it the preferred choice for environments where life safety and equipment protection are paramount.

Key Features

• 0.75mm² Class 5 Flexible Conductor: Plain annealed copper with 24/0.2mm stranding provides excellent flexibility for tight routing within panels and enclosures.
• LSZH Insulation (Type EI5): Cross-linked low smoke zero halogen insulation minimises toxic fume and smoke emission during fire, protecting personnel and sensitive equipment.
• 300/500V Voltage Rating (H05Z-K): Suitable for a wide range of low-voltage panel wiring and equipment applications.
• Wide Operating Temperature: Rated from -15°C to +90°C, allowing installation and operation in demanding thermal environments.
• Compact 2.7mm Approximate Diameter: The slim profile (approx. 19 AWG equivalent) makes it ideal for high-density wiring within control panels.
• Bending Radius of 3x Overall Diameter: Tight minimum bend radius of just 8.1mm enables neat cable management in confined spaces.
• BASEC Certified: Independent third-party certification provides assurance of quality and compliance.
• 100m Reel: Convenient pack size for panel building and equipment wiring projects.

Applications

This 0.75mm² 2491B LSZH cable is specifically suited for wiring appliances, switchgear, instrument panels, and metering equipment. It is widely used in control panel manufacture, building services, and industrial installations — particularly in locations such as hospitals, public buildings, transport infrastructure, and data centres where smoke and toxic fumes arising in a fire situation may threaten life or equipment.

Standards and Compliance

Compliant with BS EN 50525-3-41, Cenelec HD22.9, BS EN/IEC 60332-1-2 (flame retardance), BS EN 50267-2-1 (halogen-free), BS EN/IEC 61034-1 (smoke density), and BASEC certified.

Supplied in white, 100m length. Order code: 2491b-h05z-k-lszh-cable-0-75-white-100m.

Frequently Asked Questions

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

H05Z-K is rated at 300/500V and is intended for lighter-duty equipment wiring, while H07Z-K is rated at 450/750V for applications requiring a higher voltage rating — both share the same LSZH construction and comply with BS EN 50525-3-41.

What is the outer diameter of 0.75mm² 2491B LSZH cable?

Approximately 2.7mm, with an insulation radial thickness of 0.6mm.

Is this cable suitable for fire-critical environments?

Yes — its LSZH insulation is tested to BS EN/IEC 60332-1-2 for flame retardance, BS EN 50267-2-1 for halogen-free properties, and BS EN/IEC 61034-1 for low smoke density, making it ideal where fire safety is a priority.

What is the minimum bending radius for this cable?

The minimum bending radius is 3 times the overall diameter, which equates to approximately 8.1mm.

Where can I buy 0.75mm² 2491B Cable (H05Z-K) LSZH White Class 5 Flexible 300-500V LSZH-0.75-WHITE-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 expert technical support, same-day despatch, and hundreds of highly positive customer reviews.