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RZ1-K Cable

RZ1-K Cable Click here to view the cable arrow-no-circles.png

Applications Overview

The RZ1-K (or RZ1K) is a flexible power and control cable designed for indoor fixed applications with a voltage rating is 600/1000V. It is manufactured with Class 5 flexible copper conductors to facilitate installations with sinuous courses, including in underground supply networks for outdoor lighting. This cable is not suitable for direct burial.
The Low Smoke Zero Halogen (LSZH) Polyolefin oversheath creates a high safety cable that will not emit toxic fumes and smoke in the event of fire, making it appropriate for installations such as buildings and public areas where there is a high concentration of people or valuable equipment.

RZ1-K cable construction

Conductor Flexible copper (Class 5)
Insulation Cross-linked Polyethylene (XLPE) Type DIX-3
Outersheath Low Smoke Zero Halogen (LSZH) Polyolefin

This cable generally has a green outersheath which is UV stable and suitable for direct exposure to sunlight. It has a temperature rating of -15oC to +90oC.

RZ1-K Cable Designation

R XLPE insulation
Z1 Halogen free thermoplastic Polyolefin
K Flexible conductor

RZ1-K cable dimensions

Some of our most popular RZ1-K cable sizes include the single core variations:

Part Number Number of Cores Nominal Cross-Sectional Area Maximum Overall Diameter mm Nominal Weight kg/km
A9R01025LS 1 2.5mm2 5.2 45
A9R01040LS 1 4.0mm2 5.8 61
A9R01060LS 1 6.0mm2 6.35 80
A9R0110LS 1 10mm2 7.25 120
A9R0116LS 1 16mm2 8.3 174
A9R0125LS 1 25mm2 9.95 258
A9R0135LS 1 35mm2 11.15 349
A9R0150LS 1 50mm2 12.75 484
A9R0170LS 1 70mm2 14.8 676
A9R0195LS 1 95mm2 16.9 885
A9R01120LS 1 120mm2 18.9 1124
A9R01150LS 1 150mm2 20.95 1393
A9R01185LS 1 185mm2 23.9 1655
A9R01240LS 1 240mm2 26.2 2214
A9R01300LS 1 300mm2 28.3 2697
A9R01400LS 1 400mm2 31.4 3389
A9R01500LS 1 500mm2 37.4 4776
A9R01600LS 1 600mm2 42.7 6276


For full technical specifications on the RZ1-K cable's other core sizes including the 2-core, 3-core, 4-core and 5-core variations, with and without earth, please refer to the datasheets or speak to our technical team for more advice. 

RZ1-K cable selection

This forms part of our wide range of European fire safety power and control cables, including the armoured RZ1MZ1-K cable. Please contact us for technical support with selecting the optimal cable and accessories for your application.

Range of Cables

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Cable Standards and Approvals

RZ1-K Cable

BS EN 50267, BS EN/IEC 60332-1, BS EN 61034

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Technical Hotline +44 (0)20 7241 8500

The Cable Lab®

UKAS-accredited specialist cable testing laboratory

About Eland Cables

The Cable Lab® our in-house cable testing facility, is UKAS-accredited to ISO 17025, which is the single most important standard for calibration and testing laboratories around the world. Accreditation to this international standard demonstrates our laboratory's technical competence and the accuracy of its results.

For our customers, it means peace of mind. They can have full confidence in the quality of our products and can demonstrate due diligence in selecting their cable supplier.

Our customers can also rely on the Cable Lab's services for an independent, objective and comprehensive quality assessment of cables procured from third parties.


About Eland Cables

About Eland Cables

Established in 1975, Eland Cables is a supplier of power, data, instrumentation and control cables and cable accessories to the world's most demanding industries and to some of its most prestigious projects. Our reputation is built on an unswerving focus on quality, technical expertise and customer service.


Our focus on quality has resulted in our in-house specialist cable testing facility securing the ISO 17025 accreditation. This certifies the competence, impartiality and performance capability of our laboratory and its evaluations. In turn, it means peace of mind for our customers with regard to the quality of the cables they source from us.

Expert tecHnical support

Our highly-qualified technical team is on hand to provide technical support with all aspects of cable selection, technical specification, regulatory requirements, and bespoke cable design and manufacture.

Complete Cable Solutions

We are a key contributor to projects in over 100 countries every year, adding value through comprehensive technical support, reliable logistics, innovative solutions, and a customer-centric approach.