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SY Cable - YSLYSY and HSLHSH Cable

SY Cable - YSLYSY and HSLHSH Cable Click here to view our SY Cable arrow-no-circles.png

Applications Overview

Due to the mechanical strength provided by their galvanised steel wire braid (GSWB), SY cables are widely used in industrial applications as interconnecting cables in control equipment or machines where they are subjected to medium mechanical stresses. These flexible instrumentation cables can be used in installations where free movement is required without tensile stresses and without forced guidance systems.

SY cables, also known as armoured flexible control cable, shielded flex, or simply armoured flex, are strong and durable cables suitable for internal dry, damp or wet environments (including oil-water mixtures), and can be used outdoors when protected against direct sunlight. They are also referred to by their constructional reference: YSLYSY cables for the PVC sheathed variation.

SY control cables are not suitable for fixed wiring applications requiring compliance with the requirements set out in BS7671.

The voltage rating for these shielded flexible multi-core control cables is 300/500V.

SY cable specifications (YSLYSY / HSLHSH) for construction

Copper Conductor Class 5 flexible Class 5 flexible
Insulation Halogen free Type TI6 PVC Type TI2
Bedding LSZH type TI6 PVC Type TM2
Braiding Galvanised steel wire braid (GSWB) GSWB
Sheath LSZH Type TM7 (black) PVC Type TM2 (clear / transparent)

YSLYSY cable and HSLHSH cable core codes

2 core SY cables are available as standard with black numbered cores, with 3 cores and above being black numbered cores with green/yellow. Coloured cores with and without green/yellow are also available upon request. 

European references for these cables indicate the core configurations within the sheathing

SY Cable LSZH SY Cable PVC
SY-OZ / HSLHSH-OZ LSZH sheathed cable with black numbered cores SY-OZ /    YSLYSY-OZ PVC sheathed cable with black numbered cores
SY-JZ /    HSLHSH-JZ LSZH sheathed cable with black numbered cores and G/Y earth SY-JZ /    YSLYSY-JZ PVC sheathed cable with black numbered cores and G/Y earth
SY-OB /      HSLHSH-OB LSZH sheathed cable with coloured cores SY-OB /    YSLYSY-OB PVC sheathed cable with coloured cores
SY-JB /    HSLHSH-JB LSZH sheathed cable with coloured cores including G/Y earth SY-JB /    YSLYSY-JB PVC sheathed cable with coloured cores including G/Y earth


The grey oversheath SY flex cable with UL and CSA approval tends to be used on equipment intended for export to the North American market.

The clear oversheath of the SY PVC cable allows the visual detection of any signs of deterioration, damage or corrosion.

SY cable standards

SY control cables are manufactured to VDE0250, the German national standard that has become internationally recognised as the benchmark for cables, wires and flexible cords for power installations for process and automation equipment and applications in manufacturing plants. Our technical team in The Cable Lab conduct extensive tests on our SY cable portfolio to ensure that our stockholding meets the designated standards and performance requirements.

SY cable supplier

SY cable selection

As a leading SY control cable supplier we have vast experience of advising on SY cable properties and sizes. Our technical team is available to discuss the most suitable option for your application as well as offering a range of SY cable glands, terminations and other accessories. 

SY cable dimensions (PVC sheath)

Part Number Number of Cores Nominal Cross-Sectional Area Max. Diameter Wires in Conductor mm Nominal Overall Diameter mm Nominal Weight kg/km Suggested SY Cable Gland (CXT)
A5J20075 2 0.75mm2 0.21 7.3 72 16/20
A5J2010 2 1.0mm2 0.21 7.6 80 16/20
A5J2015 2 1.5mm2 0.26 8.1 100 16/20
A5J30075 3 0.75mm2 0.21 7.6 85 16/20
A5J3010 3 1mm2 0.21 8.0 100 16/20
A5J3015 3 1.5mm2 0.26 8.6 120 20S
A5J3025 3 2.5mm2 0.26 9.3 140 20S
A5J3040 3 4mm2 0.31 11.8 240 20
A5J3060 3 6mm2 0.31 13.8 330 20
A5J310 3 10mm2 0.41 16.4 520 25
A5J316 3 16mm2 0.41 20.1 780 25
A5J325 3 25mm2 0.41 24.5 1160 32
A5J335 3 35mm2 0.41 29.5 1750 32
A5J40075 4 0.75mm2 0.21 8.1 100 16/20
A5J4010 4 1mm2 0.21 8.7 120 20S
A5J4015 4 1.5mm2 0.26 9.3 140 20S
A5J4025 4 2.5mm2 0.26 10.8 210 20S
A5J4040 4 4mm2 0.31 12.7 300 20
A5J4060 4 6mm2 0.31 14.8 410 25
A5J410 4 10mm2 0.41 18.0 660 25
A5J416 4 16mm2 0.41 21.6 980 32
A5J425 4 25mm2 0.41 27.0 1460 40
A5J435 4 35mm2 0.41 33.0 2054 40
A5J450 4 50mm2 0.41 37.0 3000 50S
A5J470 4 70mm2 0.51 42.5 4050 50
A5J495 4 95mm2 0.51 47.2 5100 50


Additional sizes ranging from 5 cores up to 25 cores are listed on the technical specification sheet with larger cores sizes available upon request.

Dimensions and Part Numbers for SY LSZH Cable may be different. Please refer to the datasheets for full information. SY Cable with UL/CSA Approval also available upon request.

Also available area wide range of other industrial automation cables including unscreened YY cable for use where there is light mechanical stress and CY cable screened with copper wire braid for EMC protection. Talk to our technical experts for advice on control cable selection or see our control cable datasheets.

Range of Cables

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Cable Standards and Approvals

SY PVC Control Flexible Cable

VDE0250, BS EN/IEC 60332-1

SY LSZH Control Flexible Cable

Generally to VDE0250, BS EN/IEC 60332-3, BS EN/IEC 60754-1 and 2, BS EN 50267-2-1 and 2, BS EN/IEC 61034-1

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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.