1.5mm² 6701B Cable (H07Z-K) LSZH Brown Class 5 Flexible 450-750V LSZH-1.5-BROWN-1

The LSZH-1.5-BROWN-1 is a 1.5mm² 6701B LSZH single-core cable, designated H07Z-K, rated 450/750V, supplied in brown in a 100m length. This Class 5 flexible panel wiring cable is designed for use in switchgear, instrument panels, metering equipment, and appliance wiring where low smoke zero halogen properties are essential. Its cross-linked LSZH insulation ensures minimal toxic fume emission in fire situations, helping to protect both life and sensitive equipment.

Key Features

• Low Smoke Zero Halogen (LSZH) Insulation: Cross-linked EI5 insulation dramatically reduces smoke density and toxic gas emission during a fire, making it ideal for enclosed or populated environments.
• Class 5 Flexible Conductor: Plain annealed copper with 30/0.25mm stranding provides excellent flexibility, making termination and routing in tight panel enclosures significantly easier.
• 450/750V Voltage Rating (H07Z-K): Suitable for higher-voltage equipment wiring applications compared to the lower-rated H05Z-K alternative.
• Wide Temperature Range: Rated from -15°C to +90°C, allowing reliable operation across demanding industrial environments.
• Compact 3.4mm Approximate Diameter: Keeps cable management tidy within control panels and distribution boards.
• Approximate 16 AWG Equivalent: Useful reference for specifying against international equipment requirements.
• BASEC Certified: Independently verified to meet British and international cable standards, giving confidence in quality and compliance.
• 100m Supply Length: Convenient reel size for panel building and equipment wiring projects.

Applications

This 1.5mm² 6701B LSZH cable is specifically suited to internal wiring of control panels, switchgear, instrument panels, and metering equipment. It is widely used in environments where fire safety is critical, such as public buildings, transport infrastructure, data centres, and industrial facilities. The LSZH construction ensures that in the event of a fire, smoke and toxic fumes are minimised — protecting personnel escape routes and reducing damage to sensitive electronics. Its Class 5 flexibility makes it a preferred choice among panel builders who require easy routing and neat termination.

Standards and Compliance

Manufactured to BS EN 50525-3-41 (formerly BS7211), Cenelec HD22.9, BS EN/IEC 60332-1-2 (flame propagation), BS EN 50267-2-1 (halogen-free), BS EN/IEC 61034-1 (smoke density), and BASEC certified.

Supplied in brown. Product code: 6701b-h07z-k-lszh-cable-1-5-brown-100m. Weight: 2.1 kg per 100m reel.

Frequently Asked Questions

What is the bending radius of 1.5mm² 6701B LSZH cable?

The minimum bending radius is 3 times the overall diameter — approximately 10.2mm based on the 3.4mm cable diameter.

What is the difference between 6701B (H07Z-K) and 2491B cable?

The 6701B (H07Z-K) uses LSZH insulation, which produces minimal smoke and no halogen gases in a fire, whereas standard 2491B (H05V-K/H07V-K) uses PVC insulation. The 6701B is the preferred choice where fire safety and fume toxicity are concerns.

Can this cable be used for general industrial panel wiring?

Yes, it is specifically designed for wiring appliances, switchgear, instrument panels, and metering equipment at voltages up to 750V.

What conductor stranding does the 1.5mm² size use?

It uses a 30/0.25mm Class 5 plain annealed copper stranding, with a radial insulation thickness of 0.7mm.

Where can I buy 1.5mm² 6701B Cable (H07Z-K) LSZH Brown Class 5 Flexible 450-750V LSZH-1.5-BROWN-1 in the UK?

CSE Distributors, with branches in Wooburn Green and Southampton, supply this cable across the UK with same-day despatch and next-day delivery available. A family-run business for over 50 years, CSE are backed by hundreds of positive customer reviews and offer genuine technical support.