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Product

Round rubber festoon cables0.6/1 kVDIN VDE 0250-814Per-Core / Pair EMC

(N)GRDGÖU-O(C) 0.6/1 kV Screened Round Rubber Crane Festoon CableRound EPR/polychloroprene festoon control & bus cable with screened cores or pairs

Screened 0.6/1 kV round rubber crane festoon cable ((N)GRDGÖU-O(C) / RONDOFLEX) with individually copper-braided control cores, shielded twisted pairs or hybrid unscreened/screened control bundles inside a GM1b EPR inner sheath and 5GM3 PCP jacket.

Low-EMC design

Flame-retardant

Oil-resistant

Outdoor & humid

Construction

Order designation: (N)GRDGÖU-O 12×1(C)
OD min: 20.0 mm
OD max: 23.5 mm
Weight ≈: 755 kg/km
Min. bend R: 118 mm

Check against my drum All sizes (11)

Request a quote Datasheet WhatsApp

Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum

Rated voltage: 0.6/1 kV
EMC screening: Per-core / pair
Travel speed: 240 m/min
Bending radius: 5 × D
Flexing temp.: -35 to +80 °C
Max. conductor: +90 °C

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)GRDGÖU-O(C) right for your machine?

(N)GRDGÖU-O(C) shields individual control cores or twisted pairs with tinned copper wire braids inside a dual-sheathed EPR/PCP round festoon construction, preventing crosstalk and external VFD switching interference.

Festoon & line chain

Suitable

Primary duty: EMI-protected crane control, encoder, load-cell and bus festoon loops up to 240 m/min.

Energy chain / drag chain

Suitable

Suitable for crane trolley and gantry energy chains at ≥ 5 × D bending radius.

Use (N)GRDGCGÖU for overall-braided power chains

Motorised monospiral reel

With conditions

Approved for low-stress horizontal reeling; hybrid 19×2.5+5×1(C) and 25×2.5+5×1(C) are also built in NSHTÖU reeling versions.

Use NSHTÖU for heavy motorized reeling

Vertical / spreader reel

Not suitable

Not rated for vertical spreader reeling with high torsional twist.

Use 3GSLTÖ for vertical spreader baskets

Typical machinesContainer & STS gantry cranesAutomated RTG / RMG yard cranesSteelworks & ladle crane controlBulk material handling & stackersMachine tool & transfer line controlPort & heavy hoist instrumentation

Construction

Layer by layer

Shown: (N)GRDGÖU-O 12×1(C) — finely stranded copper cores with 3GI3 EPR insulation, individual tinned copper braid screens, GM1b EPR inner sheath and black 5GM3 polychloroprene outer sheath.

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Conductor	Finely stranded bare or tinned copper, Class 5 / Class 6IEC 60228 / DIN VDE 0295
2	Core insulation	EPR rubber compound 3GI3, number-codedDIN VDE 0207-20
3	Individual core / pair screen	Tinned copper wire braid over each core (~60 % coverage) or twisted pair (~80 % coverage)Low transfer impedance · Eliminates inter-channel crosstalk
4	Inner sheath	EPR rubber compound type GM1b, blackDIN VDE 0250-814
5	Outer sheath	Heavy-duty polychloroprene (PCP / CM) rubber compound 5GM3, blackDIN VDE 0207-21 · Oil-resistant EN 60811-404 · Flame-retardant IEC 60332-1-2

(N)GRDGÖU-O ..×1(C)

12 to 36 individually copper-screened 1.0 mm² control cores

(N)GRDGÖU-O ..×(2×..)C

6 or 9 individually copper-screened twisted pairs (0.5 mm² or 1.0 mm²)

(N)GRDGÖU-O ..×2.5+5×1(C)

Hybrid control cable: 19 or 25 unscreened 2.5 mm² cores + 5 individually screened 1.0 mm² cores

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: 2.5 kV
Screen construction: Tinned copper braid (~60% on screened cores, ~80% on twisted pairs)

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 crane festoon systems
Max. tensile load on conductor: 15 N/mm²
Min. bending radius: Acc. to DIN VDE 0298-3

Reference standards

Reference standards: DIN VDE 0250-814 / 0250-809 · DIN VDE 0298-3/-4 · IEC 60228 Class 5/6
Flame & environmental resistance: IEC 60332-1-2 · EN 60811-404 · UV & weather resistant

Sizes

Dimensions, weights & electrical ratings

11 individually core-screened, pair-screened and hybrid (N)GRDGÖU-O(C) festoon configurations

Dimensions & weights
Order designation	Construction	AWG ≈	OD min mm	OD max mm	Copper kg/km	Weight ≈ kg/km	Min. bend R mm	Max. pull N
All sizes
Screened cores 12–36×1(C)
(N)GRDGÖU-O 12×1(C)	12 × 1(C)	18	20.0	23.5	239	755	118	180
(N)GRDGÖU-O 18×1(C)	18 × 1(C)	18	28.4	28.4	346	1,100	142	270
(N)GRDGÖU-O 24×1(C)	24 × 1(C)	18	33.2	33.2	478	1,510	166	360
(N)GRDGÖU-O 30×1(C)	30 × 1(C)	18	33.3	33.3	585	1,660	167	450
(N)GRDGÖU-O 36×1(C)	36 × 1(C)	18	36.2	36.2	717	1,960	181	540
Screened pairs 0.5–1.0 mm²
(N)GRDGÖU-O 6×(2×0.5)C	6 × (2 × 0.5)C	20	25.1	25.1	284	850	126	90
(N)GRDGÖU-O 9×(2×0.5)C	9 × (2 × 0.5)C	20	31.3	31.3	420	1,340	157	135
(N)GRDGÖU-O 6×(2×1)C	6 × (2 × 1)C	18	31.1	32.1	427	1,260	161	180
(N)GRDGÖU-O 9×(2×1)C	9 × (2 × 1)C	18	38.9	40.2	641	2,030	201	270
Hybrid 2.5 + 1(C)
(N)GRDGÖU-O 19×2.5 + 5×1(C)	19 × 2.5 + 5 × 1(C)	14	30.3	31.0	556	1,650	155	788
(N)GRDGÖU-O 25×2.5 + 5×1(C)	25 × 2.5 + 5 × 1(C)	14	32.1	33.0	700	1,920	165	1,013

Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
Copper weight (kg/km) includes both the main conductors and the individual tinned copper braid screens.

Electrical & conductor data
Cross-section mm²	AWG ≈	Max. R20 Ω/km	Base rating in air 30 °C, A	Short-circuit 1 s kA	Used in
0.5	20	39	10	0.07	6×(2×0.5)C, 9×(2×0.5)C
1.0	18	19.5	19	0.14	12×1(C)–36×1(C), 6×(2×1)C, 9×(2×1)C
2.5	14	7.98	30	0.36	19×2.5+5×1(C), 25×2.5+5×1(C)

Apply DIN VDE 0298-4 multicore grouping factors for simultaneously loaded control cores.

Reel check

Will it fit your machine?

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

Cable sizeDrum core diameter (mm)

Travel speed (m/min)

m/min

Cable length on drum (m)

Drum core 200 mm is below 236 mmUse a larger drum core or a smaller cable size

150 m/min ≤ 240 m/minWithin the rated travel speed

Minimum bending radius: 118 mm
Min. drum core diameter: ≈ 236 mm
Cable weight on drum: 45.3 kg
Copper content: 14.3 kg

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.

ConductorClass 5 stranding
Spark test100 % in-line
Lay-upCores, earth, fillers
SheathingInner, braid / screen, outer
Electrical testsAC voltage, resistance
DimensionsOD, wall thickness
Inspection documents & dispatchDrum & dispatch

Testing & inspection	Test value / reference	Frequency
Routine tests
AC voltage test	2.5–3.0 kV, 5 min	Every length
Conductor resistance	IEC 60228 / DIN VDE 0295 Class 5/6	Every length
Sample tests
Flame propagation	IEC 60332-1-2	Per batch
Oil resistance of sheath	EN 60811-404	Per 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)GRDGÖU-O 12x1(C) 0.6/1 kV DIN VDE 0250-814 · CE · [year] · [metre mark]

Standard packing: 500 m on wooden drums or cut-to-length festoon sets
HS code: 8544.49

Technical documents

Downloads

PDF(N)GRDGÖU-O(C) 0.6/1 kV Screened Round Rubber Crane Festoon Cable – technical datasheet11 sizes · construction, technical data, approvals XLSX(N)GRDGÖU-O(C) spec data (Excel)All 11 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 does the '(C)' suffix at the end of (N)GRDGÖU-O 12×1(C) or 6×(2×1)C mean?

In DIN VDE 0250 crane cable notation, '(C)' placed after the core or pair dimension indicates that each individual core (in 12×1(C) to 36×1(C)) or each twisted pair (in 6×(2×1)C and 9×(2×1)C) has its own tinned copper braid screen, rather than a single overall screen around the whole cable.

What are the hybrid 19×2.5 + 5×1(C) and 25×2.5 + 5×1(C) constructions used for?

These composite crane cables combine 19 or 25 unscreened 2.5 mm² contactor/brake control cores with 5 individually copper-screened 1.0 mm² cores for analog load-cell, tachometer or encoder signals inside a single round festoon cable.

How does (N)GRDGÖU-O(C) differ from (N)GRDGCGÖU?

(N)GRDGÖU-O(C) screens individual control cores or twisted pairs to prevent channel-to-channel crosstalk, whereas (N)GRDGCGÖU places an overall tinned copper braid ('C') between the inner and outer sheaths to shield high-current VFD motor power cores.

What optical coverage is provided on the individual core and pair screens?

Individual core braids provide approximately 60 % surface coverage for flexible bending over festoon saddles, while twisted-pair braids provide approximately 80 % coverage optimized for transfer impedance up to 30 MHz.

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01Selected sizes

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02Reel & motion

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Reel typeDrum core diameter (mm)Cable length on drum (m)Travel speed (m/min)Max. accelerationCycles per hourLength and quantityAmbient temperatureExposure (outdoor, water, oil, abrasion)Destination countryEquipment and operating conditions

03Message for our engineers

Screened Round Festoon Cable for Cranes (N)GRDGÖU-O(C)

Selected sizes:


Reel & motion:
- Reel type: 
- Drum core diameter (mm): 
- Cable length on drum (m): 
- Travel speed (m/min): 
- Max. acceleration: 
- Cycles per hour: 
- Length and quantity: 
- Ambient temperature: 
- Exposure (outdoor, water, oil, abrasion): 
- Destination country: 
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