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Product

EN 50288-7 SWA armoured instrumentation cableBS EN 50288-7Galvanised SWA Armour300/500 V · Ex-i / Black

RE-2Y(st)Y SWAY Armoured Instrumentation CableGalvanised steel wire armoured PE/PVC instrumentation cable for direct burial

Direct-burial 300/500 V process instrumentation cable built to BS EN 50288-7 with Class 2 copper conductors, low-capacitance PE (2Y) insulation, collective or PiMF Al/PET screen, PVC bedding, galvanised steel wire armour (SWA) and PVC outer sheath.

Low-EMC design
EMC screen
Oil-resistant
Outdoor & humid
Order designation
RE-2Y(st)Y PiMF SWAY 4×2×1.5
Outer Ø ≈
19.6 mm
Copper weight
129 kg/km
Total weight ≈
710 kg/km
Min. bend R (fixed)
196 mm
All sizes (18)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Rated voltage
300/500 V
EN 50288-7 · 2000 V AC test
Armouring
Galvanised SWA
EN 10257-1 round steel wires
Max. L/R ratio
≤ 25 / 40 µH/Ω
0.5–1.0 mm² (25) · 1.5 mm² (40)
Capacitance
≤ 100 nF/km
OS · ≤ 115 nF/km PiMF+OS
Temperature
−40…+70 °C
fixed · −5…+50 °C installation
Bend radius
10 × OD
fixed routing · 12 × OD pulling

Typical values for this cable type, based on BS EN 50288-7 / EN 10257-1 — confirmed in the datasheet and quotation for your order.

Application fit

Is RE-2Y(st)Y SWAY right for your machine?

Engineered for direct-burial trenches, outdoor pipe racks, tank farms and rodent-exposed process areas requiring low-capacitance PE signal transmission and heavy mechanical protection.

TBM gantry & advancing tunnel reel

Suitable

Galvanised steel wire armour (SWA) over extruded PVC bedding enables direct trench burial without protective ducting.

Offshore platform & shipboard deck trays

Suitable

UV- and hydrocarbon-resistant PVC outer sheath with full mechanical crush and rodent protection.

Fixed installation

Suitable

Terminates cleanly into E1W / Ex-d / Ex-e double-compression armoured brass or stainless cable glands.

Energy chain / drag chain

Not suitable

Galvanised steel wire armour is exclusively for static installation and direct burial.

PUR Drag-Chain Control Cable
Typical machinesOil & Gas Tank Farms & Pipeline StationsRefinery Direct-Burial Trench NetworksPetrochemical & Fertiliser ComplexesPower Plants & Desalination FacilitiesMining & Cement Process Instrumentation

Construction

Layer by layer

Shown: RE-2Y(st)Y PiMF SWAY 4×2×1.5 mm² with Class 2 copper pairs, PE insulation, PiMF + collective Al/PET screens, extruded PVC inner bedding, 1.25 mm galvanised steel wire armour and black or Ex-i blue PVC outer sheath.

123456
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Stranded copper conductorsAnnealed bare or tinned copper, 7-wire stranded (IEC 60228 Class 2)Low DC resistance for long-distance tank-farm and pipeline loops
2Polyethylene core insulationSolid polyethylene (PE / 2Y per EN 50290-2-23)Low capacitance (≤ 100–115 nF/km) and high insulation resistance (≥ 5 GΩ·km)
3Individual & collective Al/PET screensAl/PET laminated tape + 0.5 mm² tinned copper drain wire (OS or PiMF+OS)100 % electrostatic interference rejection
4Extruded PVC inner bedding (Y)Extruded PVC compound (EN 50290-2-22) filling interstices over the collective screenProvides a circular, moisture-tight seat for E1W / Ex-d gland inner seals
5Galvanised steel wire armour (SWA)Single layer of round galvanised steel wires (0.9 / 1.25 / 1.6 mm per EN 10257-1), ≥ 90 % coverageWithstands trench backfill crush, rock impact, pulling tension and rodent attack
6Flame-retardant PVC outer sheath (Y)Extruded PVC (TM1) with ripcord, Black RAL 9005 or Blue RAL 5015 (Ex-i)IEC 60332-1-2 & IEC 60332-3-24 Cat C flame retardant

RE-2Y(st)Y SWAY (OS + SWA)

Collectively screened pairs or triads with PVC bedding, galvanised SWA and PVC outer sheath

RE-2Y(st)Y PiMF SWAY

Individually and collectively foil-screened pairs (PiMF) with galvanised SWA armour

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on BS EN 50288-7 / EN 10257-1. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage U0/U
300/500 V
Test voltage
2000 V AC (core/core & core/screen) for 1 min
Insulation resistance
≥ 5000 MΩ·km at +20 °C
Mutual capacitance (at 800 Hz)
≤ 100 nF/km (OS) · ≤ 115 nF/km (PiMF)
Max. L/R ratio
≤ 25 µH/Ω (0.5–1.0 mm²) · ≤ 40 µH/Ω (1.5 mm²)

Thermal

Operating temperature, fixed
−40 °C to +70 °C
Operating temperature, installation
−5 °C to +50 °C
Max. short-circuit temperature
+150 °C (max. 5 s)

Mechanical

Armour wire diameter
0.90 mm / 1.25 mm / 1.60 mm galvanised steel (EN 10257-1)
Min. bending radius, fixed
10 × OD
Min. bending radius, during pulling
12 × OD

Resistance

Flame retardance
IEC 60332-1-2 & IEC 60332-3-24 (Cat C)
Direct burial & rodent protection
Full mechanical protection via galvanised SWA
Oil & chemical resistance
EN 50290-2-22 TM1 oil-resistant PVC

Reference standards

Design & armour standards
BS EN 50288-7 & BS EN 10257-1
Conductor standard
IEC 60228 Class 2
Hazardous area installation
IEC 60079-14 (Ex-i, Ex-e, Ex-d with barrier glands)

Identification

Core identification
Black / White numbered 1, 2… (Triads: Bk/Wh/Rd)
Outer sheath colour
Black (RAL 9005) or Blue (RAL 5015 Ex-i)
Customs tariff (HS)
8544.49

Sizes

18 standard RE-2Y(st)Y SWAY armoured instrumentation sizes

Includes galvanised steel wire armour gauge and finished outer diameter for E1W / Ex-d cable gland selection.

Dimensions, SWA wire size & weights
Order designationFormatSWA wire ØOuter Ø ≈
mm		Copper
kg/km		Weight ≈
kg/km		Min. bend R
fixed mm		Enquiry
0.5 mm² SWA Armoured — L/R ≤ 25 µH/Ω
RE-2Y(st)Y SWAY 1×2×0.51×2×0.5 mm²0.9 mm SWA10.415210104
RE-2Y(st)Y SWAY 2×2×0.52×2×0.5 mm²0.9 mm SWA12.825295128
RE-2Y(st)Y PiMF SWAY 4×2×0.54×2×0.5 mm²0.9 mm SWA15.252415152
RE-2Y(st)Y PiMF SWAY 8×2×0.58×2×0.5 mm²1.25 mm SWA19.298665192
RE-2Y(st)Y PiMF SWAY 12×2×0.512×2×0.5 mm²1.25 mm SWA22.0144860220
0.75 mm² SWA Armoured — L/R ≤ 25 µH/Ω
RE-2Y(st)Y SWAY 1×2×0.751×2×0.75 mm²0.9 mm SWA10.820232108
RE-2Y(st)Y SWAY 2×2×0.752×2×0.75 mm²0.9 mm SWA13.634335136
RE-2Y(st)Y PiMF SWAY 4×2×0.754×2×0.75 mm²0.9 mm SWA16.471475164
RE-2Y(st)Y PiMF SWAY 8×2×0.758×2×0.75 mm²1.25 mm SWA20.8136765208
1.0 mm² SWA Armoured — L/R ≤ 25 µH/Ω
RE-2Y(st)Y SWAY 1×2×1.01×2×1.0 mm²0.9 mm SWA11.225252112
RE-2Y(st)Y PiMF SWAY 4×2×1.04×2×1.0 mm²1.25 mm SWA17.890585178
RE-2Y(st)Y PiMF SWAY 8×2×1.08×2×1.0 mm²1.25 mm SWA22.1174880221
RE-2Y(st)Y PiMF SWAY 12×2×1.012×2×1.0 mm²1.6 mm SWA25.42581,140254
1.5 mm² SWA Armoured — L/R ≤ 40 µH/Ω
RE-2Y(st)Y SWAY 1×2×1.51×2×1.5 mm²0.9 mm SWA12.035290120
RE-2Y(st)Y SWAY 2×2×1.52×2×1.5 mm²0.9 mm SWA15.663440156
RE-2Y(st)Y PiMF SWAY 4×2×1.54×2×1.5 mm²1.25 mm SWA19.6129710196
RE-2Y(st)Y PiMF SWAY 8×2×1.58×2×1.5 mm²1.6 mm SWA24.82521,120248
RE-2Y(st)Y PiMF SWAY 12×2×1.512×2×1.5 mm²1.6 mm SWA28.63741,465286
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Inner bedding diameter is available on request for exact E1W / Ex-d / Ex-e double-compression gland ring sizing.

Quality & approvals

Testing & inspection

Routine tests on every production length, sample and type tests per batch — documented on an EN 10204 3.1 inspection certificate.

  1. ConductorClass 5 stranding
  2. Spark test100 % in-line
  3. Lay-upCores, earth, fillers
  4. SheathingInner, braid / screen, outer
  5. Electrical testsAC voltage, resistance
  6. DimensionsOD, wall thickness
  7. Inspection documents & dispatchDrum & dispatch
Testing & inspectionTest value / referenceFrequency
Routine tests
2000 V AC dielectric & spark test on inner bedding and outer sheath2.0 kV AC for 1 min without breakdown; 100 % spark-tested jacketsEvery manufactured drum
Sample tests
Galvanised steel wire zinc coating & tensile testConforms to EN 10257-1 Class A zinc mass and tensile strengthPer armour wire lot
IEC 60332-3-24 Category C vertical bunched flame testPass vertical ladder flame spread testPeriodic audit

Inspection certificate

Issued with every drum, listing the routine test results for that length.

Product approvals

BS EN 50288-7 & EN 10257-1 CompliantIEC 60332-1-2 & IEC 60332-3-24 Cat CCE, RoHS 2 (2011/65/EU) & REACH

Company certificates

ISO 9001ISO 14001ISO 45001VDE marks approvalUL / cULCE · LVD / EMC

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX RE-2Y(st)Y SWAY <size> 300/500V EN 50288-7 SWA CE
Delivery form
Non-returnable fumigated wooden drums
Standard lengths
500 m · 1000 m standard drums (cut lengths on request)
MOQ
500 m (stock sizes) · 1000 m (custom)
Lead time
2–4 weeks ex-works
Incoterms
EXW, FCA, FOB, CIF, DAP

Technical documents

Downloads

PDFRE-2Y(st)Y SWAY Armoured Instrumentation Cable – technical datasheet18 sizes · construction, technical data, approvalsXLSXRE-2Y(st)Y SWAY spec data (Excel)All 18 sizes with dimensions and data, for your BOM or quotation
Revision
2026-10-20
Updated
2026-10-20

FAQ

Questions engineers ask first

Not covered here? Send your drawing — an engineer replies within 2 business hours.

What is the difference between RE-2Y(st)Y SWAY and RE-2Y(st)YRY?
Both designations refer to the same EN 50288-7 construction: 'SWAY' explicitly names the Steel Wire Armour ('SWA') followed by the PVC outer sheath ('Y'), whereas 'RY' uses the European 'R' code for round galvanised steel wire armour plus 'Y' for the PVC outer sheath.
Why does RE-2Y(st)Y SWAY include an extruded PVC inner bedding beneath the steel wire armour?
The extruded inner bedding protects the thin Al/PET electrostatic screen from being punctured by the galvanised steel armour wires during bending and provides a smooth circular seal surface for the inner compression ring of E1W and Ex-d/Ex-e armoured cable glands.
How should the SWA armour and the internal (st) screen be earthed in hazardous areas?
Per IEC 60079-14, the galvanised steel wire armour (SWA) is bonded to the plant protective earth (PE) at both ends via the metallic cable glands for mechanical fault current protection, while the insulated internal Al/PET screen and drain wire are floated at the field transmitter and earthed at the marshalling cabinet instrument earth bar.
When should I choose RE-2X(st)H SWAH instead of RE-2Y(st)Y SWAY?
Specify RE-2X(st)H SWAH when the project requires +90 °C XLPE core insulation and Low-Smoke Zero-Halogen (LSZH) inner bedding and outer sheath — such as in offshore modules, LNG plants, tunnels, and enclosed control buildings.

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RE-2Y(st)Y SWAY Armoured Instrumentation Cable

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