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Product

Round rubber festoon & chain cables0.6/1 kVDIN VDE 0250-814EMC Energy Chain

(N)GRDGCGÖU 0.6/1 kV Screened Energy-Chain & Crane Festoon CableHalogen-free EPR/EVA copper-screened power, VFD and bus cable for energy chains

Screened 0.6/1 kV energy-chain and crane festoon cable ((N)GRDGCGÖU / RONDOFLEX) to DIN VDE 0250-814 with Class 5 copper conductors, high-grade EPR insulation, EPR inner sheath, >80% tinned copper braid screen and low-friction EVA/elastomer outer sheath.

Low-EMC design
Flame-retardant
Oil-resistant
Outdoor & humid
Order designation
(N)GRDGCGÖU-J 3×35+3G16/3
OD min
26.4 mm
OD max
29.4 mm
Weight ≈
1,770 kg/km
Min. bend R
147 mm
Check against my drumAll sizes (34)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Rated voltage
0.6/1 kV
U0/U · max. AC 0.7/1.2 kV
EMC screen
TCWB > 80%
Z_T < 100 mΩ/m at 30 MHz
Travel speed
240 m/min
Long-travel crane energy chains
Bending radius
5 × D
Dynamic chain & festoon service
Flexing temp.
-35 to +80 °C
Mobile · -50 to +80 °C fixed
Max. conductor
+90 °C
250 °C short-circuit (≤ 5 s)

Typical values for this cable type, based on DIN VDE 0250-814 — confirmed in the datasheet and quotation for your order.

Application fit

Is (N)GRDGCGÖU right for your machine?

(N)GRDGCGÖU is specifically engineered for long-travel, high-speed energy chains and crane festoons where variable-frequency drive (VFD) motor feeders, control cores and bus pairs run side-by-side inside the same carrier.

Energy chain / drag chain

Suitable

Primary duty: high-speed container crane, RMG/ASC stacking crane and indoor gantry energy chains up to 240 m/min.

Festoon & line chain

Suitable

Approved for high-speed overhead crane and ship-to-shore gantry festoon trolleys up to 240 m/min.

Fixed installation

Suitable

Suitable for fixed and flexible EMC-shielded VFD feeder routing on crane bridges and machinery.

Typical machinesContainer terminal STS & ASC cranesAutomated stacking cranes (RMG / RTG)Heavy indoor steelworks energy chainsBulk material handling & ship loadersLong-travel gantry drag chainsVFD inverter-driven hoist systems

Construction

Layer by layer

Shown: (N)GRDGCGÖU-J 4G10C — four 10 mm² power cores (3 phases + green-yellow earth), EPR inner sheath, >80 % tinned copper braid screen and abrasion-resistant black EVA/elastomer outer sheath.

12345
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1ConductorFinely stranded bare electrolytic copper, Class 5 (split earth conductors Class FS)IEC 60228 / DIN VDE 0295 Class 5
2Core insulationHigh-grade special EPR elastomer compound (3GI3); ETFE option on control coresDIN VDE 0207-20 · High dielectric and mechanical strength
3Inner sheathPressure-extruded EPR rubber inner sheath (GM1b)DIN VDE 0250-814 · Forms a smooth cylindrical bedding for the copper braid
4EMC copper braid screenTinned copper wire braid over inner sheath (> 80 % optical coverage)Surface transfer impedance < 100 mΩ/m at 30 MHz
5Outer sheathAbrasion-resistant halogen-free EVA / special elastomer outer sheath, blackDIN VDE 0250-814 · Oil-resistant EN 60811-404 · Low friction in polymer/steel energy chains

1×16C – 1×240C

Screened single-core VFD power leads for high-current crane drives

3×..+3G../3 & 4G..C

Symmetrical 3+3 split-earth and 4-core screened VFD motor cables

1×(2×0.5)C – 4×(2×1)C

Screened twisted-pair data and fieldbus cables for energy chains

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on DIN VDE 0250-814. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage U0/U
0.6/1 kV (max. AC 0.7/1.2 kV · DC 0.9/1.8 kV)
AC test voltage
3.5 kV (5 min)
EMC screen & transfer impedance
Tinned copper braid (> 80 % coverage) · Transfer impedance < 100 mΩ/m at 30 MHz

Thermal

Max. conductor operating temperature
+90 °C
Max. short-circuit temperature (≤ 5 s)
+250 °C
Ambient temperature — flexing / mobile
-35 to +80 °C
Ambient temperature — fixed installation
-50 to +80 °C

Mechanical

Max. travel speed
Up to 240 m/min in energy chains and festoon systems
Max. tensile load & torsion
15 N/mm² max. tensile load · Torsional stress not allowed
Min. bending radius
Acc. to DIN VDE 0298-3

Reference standards

Reference standards
DIN VDE 0250-814 (VDE Reg. 7841) · DIN VDE 0298-3/-4 · IEC 60228 Class 5
Chemical & fire performance
Halogen-free · Oil-resistant EN 60811-404 · UV, ozone & abrasion resistant EVA sheath

Sizes

Dimensions, weights & electrical ratings

34 single-core, symmetrical 3+3 VFD, 4-core power, control and bus configurations (0.5 mm² to 240 mm²)

Dimensions & weights
Order designationConstructionCond. Ø
mm		OD min
mm		OD max
mm		Min. bend R
mm		Weight ≈
kg/km		Max. pull
N		Max. R20
Ω/km		Enquiry
All sizes
Single-core 16–240C
(N)GRDGCGÖU-O 1×16C1 × 16C5.710.112.1613202401.21
(N)GRDGCGÖU-O 1×25C1 × 25C7.112.814.8744503700.78
(N)GRDGCGÖU-O 1×35C1 × 35C8.313.715.7795405200.55
(N)GRDGCGÖU-O 1×50C1 × 50C9.815.717.7897407500.39
(N)GRDGCGÖU-O 1×70C1 × 70C11.618.720.71041,0201,0500.27
(N)GRDGCGÖU-O 1×95C1 × 95C13.820.822.81141,2601,4200.21
(N)GRDGCGÖU-O 1×120C1 × 120C14.922.824.81241,5801,8000.16
(N)GRDGCGÖU-O 1×150C1 × 150C17.225.628.61432,0002,2500.13
(N)GRDGCGÖU-O 1×185C1 × 185C18.027.730.71542,3702,7700.11
(N)GRDGCGÖU-O 1×240C1 × 240C22.531.934.91753,1303,6000.08
Screened VFD 3+3 & 4C
(N)GRDGCGÖU-J 3×35+3G16/33 × 35 + 3G16/38.126.429.41471,7701,5700.55
(N)GRDGCGÖU-J 3×50+3G25/33 × 50 + 3G25/310.031.534.51732,5602,2500.39
(N)GRDGCGÖU-J 3×70+3G35/33 × 70 + 3G35/311.937.640.62033,5503,1500.27
(N)GRDGCGÖU-J 4G2.5C4 × 2.5C1.911.213.2663101507.98
(N)GRDGCGÖU-J 4G4C4 × 4C2.915.217.2864902404.95
(N)GRDGCGÖU-J 4G6C4 × 6C3.617.019.0956503603.3
(N)GRDGCGÖU-J 4G10C4 × 10C4.619.221.21068706001.91
(N)GRDGCGÖU-J 3×16+3G2.5C3 × 16 + 3G2.5C5.920.322.31121,0507201.21
(N)GRDGCGÖU-J 3×25+3G4C3 × 25 + 3G4C7.225.728.71441,6101,1200.78
Unscreened 4-core
(N)GRDGÖU-J 4G2.54 × 2.52.09.911.5462001507.98
(N)GRDGÖU-J 4G44 × 42.912.714.7743202404.95
(N)GRDGÖU-J 4G64 × 63.614.216.2814303603.3
(N)GRDGÖU-J 4G104 × 104.616.718.7946706001.91
(N)GRDGÖU-J 4G164 × 165.921.223.21161,0209601.21
(N)GRDGÖU-J 4G254 × 257.226.529.51481,6001,5000.78
Control 7–24 cores
(N)GRDGÖU-J 12G1.512 × 1.51.511.713.76930527013.3
(N)GRDGÖU-J 24G1.524 × 1.51.519.921.911071054013.3
(N)GRDGÖU-J 7G2.57 × 2.51.911.313.3672902607.98
(N)GRDGÖU-J 12G2.512 × 2.51.915.317.4874904507.98
(N)GRDGÖU-J 18G2.518 × 2.51.919.521.51087606707.98
(N)GRDGÖU-J 24G2.524 × 2.51.922.524.51231,0209007.98
Screened bus pairs
(N)GRDGCGÖU-O 1×(2×0.5)C1 × (2 × 0.5)C0.98.010.0401351039
(N)GRDGCGÖU-O 4×(2×0.5)C4 × (2 × 0.5)C0.917.619.6985006039
(N)GRDGCGÖU-O 4×(2×1)C4 × (2 × 1)C1.326.329.31471,13018019.5
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Configurations with suffix 'C' or '/3' include the tinned copper braid EMC screen; unscreened companion power/control sizes share the same EPR/EVA chain-optimized jacket.

Reel check

Will it fit your machine?

A first screen using datasheet values. Engineering confirms drum geometry, acceleration and tension with your quotation.

Check results

Drum core 200 mm is below 294 mmUse a larger drum core or a smaller cable size
180 m/min ≤ 240 m/minWithin the rated travel speed
Minimum bending radius
147 mm
Min. drum core diameter
≈ 294 mm
Cable weight on drum
141.6 kg
Outer diameter
29.4 mm
Indicative only: based on the datasheet outer diameter and 5 × OD bending radius. Current derating for wound layers per DIN VDE 0298-4 is assessed separately.

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
AC voltage test3.5 kV, 5 minEvery length
Conductor resistanceIEC 60228 / DIN VDE 0295 Class 5Every length
Sample tests
Transfer impedance at 30 MHz< 100 mΩ/m (> 80 % braid coverage)Type approval
Oil & environmental resistanceEN 60811-404 · Halogen-freePer compound batch

Inspection certificate

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

Product approvals

0.6/1 kVCE · LVDRoHS · REACH

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX (N)GRDGCGÖU 3x35+3G16/3 0.6/1 kV DIN VDE 0250-814 · CE · [year] · [metre mark]
Standard packing
500 m / 1,000 m on wooden drums or custom chain lengths
HS code
8544.49

Technical documents

Downloads

PDF(N)GRDGCGÖU 0.6/1 kV Screened Energy-Chain & Crane Festoon Cable – technical datasheet34 sizes · construction, technical data, approvalsXLSX(N)GRDGCGÖU spec data (Excel)All 34 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.

Why does (N)GRDGCGÖU use an EVA outer sheath over an EPR inner sheath for energy chains?
Standard polychloroprene rubber has a higher coefficient of friction against polymer and steel energy-chain crossbars. The cross-linked EVA (ethylene-vinyl acetate) outer sheath provides low sliding friction, high abrasion resistance, and halogen-free performance at travel speeds up to 240 m/min.
What is the advantage of the symmetrical 3×35+3G16/3 to 3×70+3G35/3 configurations?
Splitting the protective earth conductor into three equal interstices ('3G../3') between the three phase cores creates a geometrically symmetrical electromagnetic field, minimizing common-mode shaft currents and radiated EMI on high-power VFD crane hoist and travel drives.
What are the 3×16+3G2.5C and 3×25+3G4C configurations?
These motor-plus-brake composite cables integrate three unscreened power cores, a protective earth core, and a separately screened control pair/core group for motor brake release or thermal monitoring inside one energy-chain cable.
Can (N)GRDGCGÖU be used where torsional twisting occurs?
No. Because the overall tinned copper braid screen has a fixed lay angle optimized for < 100 mΩ/m transfer impedance, axial torsion is not permitted. Guide the cable strictly in-plane within the energy chain or festoon saddle.

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03Message for our engineers

Screened Energy-Chain Cable for Cranes (N)GRDGCGOEU

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Reel & motion:
- Reel type: 
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- Exposure (outdoor, water, oil, abrasion): 
- Destination country: 
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