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Product

Heavy-duty rubber cables (NSSHÖU)DIN VDE 0250-8133.6/6 kV & 6/10 kVWater-Blocked LW · RWA

NTSCGERLWÖU Armoured Submersible-Pump Cable3.6/6 & 6/10 kV water-blocked steel-wire-armoured MV submersible pump rubber cable

Medium-voltage 3.6/6 kV and 6/10 kV submersible pump and mine shaft riser cable to DIN VDE 0250-813 with Class 5 tinned copper conductors, 3GI3 EPR dielectric, longitudinal/radial water-blocking (LW), galvanised steel wire armour (R) and 5GM5 sheath.

Water-resistant
EMC screen
Oil-resistant
Flame-retardant
Order designation
NTSCGERLWÖU 3×50+3×25/3E 6/10 kV
Outer Ø min
49.9 mm
Outer Ø max
54.2 mm
Weight ≈
4,790 kg/km
Min. bend R
542 mm
Check against my drumAll sizes (14)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Rated voltage
3.6/6 & 6/10 kV
Max. Um 7.2 kV / 12 kV · 11/17 kV test
Conductor temp.
+90 °C max.
+250 °C short-circuit (5 s)
Water depth
AD8 deep shaft
Longitudinal & radial water-blocked (LW)
Bending radius
10–15 × OD
10 × OD fixed · 15 × OD deployment
Armour & tensile
30–50 N/mm²
Galvanised round steel wire armour (R)
Size range
25–185 mm²
3×Phase + 3×Split Earth (3E)

Typical values for this cable type, based on DIN VDE 0250-813 — confirmed in the datasheet and quotation for your order.

Application fit

Is NTSCGERLWÖU right for your machine?

NTSCGERLWÖU is purpose-engineered for high-head medium-voltage submersible dewatering pumps in deep open-pit mines, flooded shafts and offshore caissons where vertical suspension tensile load and hydrostatic pressure exceed unarmoured cables.

Immersion & wet locations

Suitable

Permanent deep-water submersion (AD8) with longitudinal and radial water-swelling barriers (‘LW’) preventing capillary water migration.

Free-hanging vertical run

Suitable

Galvanised round steel wire armour (‘R’) carries high vertical self-supporting suspension loads in deep mine dewatering shafts.

Trailing & towing

Suitable

Heavy mine sump pontoons, floating barge pumps and open-pit dewatering risers.

Motorised monospiral reel

Not suitable

Steel wire armour is engineered for vertical suspension and rock-impact protection, not high-speed crane reeling.

Use (N)TSCGEWÖU Reeling
Typical machinesDeep-shaft mine dewatering pumpsOpen-pit & quarry pontoon pumpingOffshore ballast & caisson pumpsCavern & tunnel flood controlHigh-head raw-water intake shafts

Construction

Layer by layer

Shown: NTSCGERLWÖU 3×50+3×25/3E 6/10 kV — 3 screened MV 3GI3 EPR phase cores, 3 split interstitial earth cores, water-blocking tapes, elastomeric inner sheath, galvanised steel round wire armour and black 5GM5 outer sheath.

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Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Tinned copper conductorFine-stranded tinned copper wire (IEC 60228 / DIN VDE 0295 Class 5) with longitudinal water-blockingDIN VDE 0295 Class 5
2Semiconductive field controlInner and outer extruded semiconductive elastomer layers (‘C’ & ‘E’) over each phase coreDIN VDE 0250-813
3MV 3GI3 EPR dielectricOzone- and partial-discharge-resistant ethylene-propylene rubber compound Type 3GI3 (+90 °C)DIN VDE 0207-20 3GI3
4Water-blocking barrier (LW)Longitudinal and radial water-swelling tapes preventing axial water propagation after jacket damageLW longitudinal & radial water tightness
5Elastomeric inner beddingExtruded polychloroprene / elastomer inner sheath Type 5GM3DIN VDE 0207-21
6Round steel wire armour (R)Helically applied galvanised round steel wires (‘R’) with counter-helix binder for high vertical tensile loadCrush, rock-fall & vertical suspension armour
7Heavy-duty 5GM5 outer sheathCross-linked chlorinated elastomer / polychloroprene Type 5GM5, black or redDIN VDE 0207-21 5GM5 · oil, sewage & flame resistant

NTSCGERLWÖU 3.6/6 kV (3×25–3×185)

3.6/6 kV (Um 7.2 kV) armoured water-blocked submersible pump cable with 3 split earth cores

NTSCGERLWÖU 6/10 kV (3×25–3×185)

6/10 kV (Um 12 kV) armoured water-blocked submersible pump cable for high-power deep shaft pumps

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on DIN VDE 0250-813. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage U0/U
3.6/6 kV (Um 7.2 kV) or 6/10 kV (Um 12 kV)
AC test voltage
11 kV AC (3.6/6 kV) · 17 kV AC (6/10 kV), 50 Hz, 5 min
Partial discharge level
≤ 20 pC at 2 × U0
Phase field control
Extruded inner (‘C’) & outer (‘E’) semiconductive elastomer layers
Protective earth conductor
Split into 3 symmetrical interstitial tinned-copper cores (3E)

Thermal

Max. conductor temperature
+90 °C continuous operation
Short-circuit temperature
+250 °C max. on phase conductors (5 s)
Max. water temperature
+60 °C to +70 °C continuous submersion
Ambient temperature range
−25 °C to +80 °C flexing · −40 °C to +80 °C fixed

Mechanical

Min. bending radius, fixed
10 × overall diameter
Min. bending radius, deployment
15 × overall diameter
Vertical suspension tensile load
30–50 N/mm² carried by galvanised round steel wire armour (‘R’)
Crush & impact protection
Galvanised steel wire armour resists shaft rock-fall & clamp loads

Resistance

Water tightness (LW)
Longitudinal & radial water-blocked construction for deep AD8 submersion
Oil & chemical resistance
EN 60811-404 oil, acidic mine water & slurry resistant (5GM5 ‘Ö’)
Flame retardance
IEC 60332-1-2 / EN 60332-1-2 self-extinguishing
Weather & ozone
Ozone-immune 3GI3 core & UV-stabilised 5GM5 outer sheath

Reference standards

Construction basis
DIN VDE 0250-813 (with R armour & LW water-blocking)
Selection & installation
DIN VDE 0298-300 & DIN VDE 0298-4
Conductor standard
IEC 60228 / DIN VDE 0295 Class 5
RoHS & REACH
2011/65/EU (RoHS 2) & EC 1907/2006 compliant

Identification

Sheath colour
Black or red (mining visibility)
Core identification
Natural semiconductive screen with phase identification + 3 split earth cores
Sheath marking
TEBAOFLEX NTSCGERLWÖU [Size] 3.6/6kV (or 6/10kV) DIN VDE 0250-813 CE
Customs tariff (HS)
8544.60 (insulated electric conductors > 1000 V)

Sizes

14 standard NTSCGERLWÖU configurations

Typical DIN VDE 0250-813 outer diameter limits, copper content and cable weight.

Dimensions & weights
Order designationCores × mm²AWG ≈Outer Ø min
mm		Outer Ø max
mm		Copper
kg/km		Weight ≈
kg/km		Min. bend R
mm		Enquiry
3.6/6 kV (Um 7.2 kV) NTSCGERLWÖU Armoured Submersible Pump Cables
NTSCGERLWÖU 3×25+3×25/3E 3.6/6 kV3×25+3×25/3E440.944.59603,150445
NTSCGERLWÖU 3×35+3×25/3E 3.6/6 kV3×35+3×25/3E244.047.81,2483,680478
NTSCGERLWÖU 3×50+3×25/3E 3.6/6 kV3×50+3×25/3E147.451.51,6804,420515
NTSCGERLWÖU 3×70+3×35/3E 3.6/6 kV3×70+3×35/3E2/051.756.22,3525,490562
NTSCGERLWÖU 3×95+3×50/3E 3.6/6 kV3×95+3×50/3E3/056.161.03,2166,780610
NTSCGERLWÖU 3×120+3×70/3E 3.6/6 kV3×120+3×70/3E4/060.265.44,1288,120654
6/10 kV (Um 12 kV) NTSCGERLWÖU Armoured Submersible Pump Cables
NTSCGERLWÖU 3×25+3×25/3E 6/10 kV3×25+3×25/3E443.447.29603,480472
NTSCGERLWÖU 3×35+3×25/3E 6/10 kV3×35+3×25/3E246.450.41,2484,010504
NTSCGERLWÖU 3×50+3×25/3E 6/10 kV3×50+3×25/3E149.954.21,6804,790542
NTSCGERLWÖU 3×70+3×35/3E 6/10 kV3×70+3×35/3E2/054.359.02,3525,880590
NTSCGERLWÖU 3×95+3×50/3E 6/10 kV3×95+3×50/3E3/058.763.83,2167,210638
NTSCGERLWÖU 3×120+3×70/3E 6/10 kV3×120+3×70/3E4/062.768.24,1288,590682
NTSCGERLWÖU 3×150+3×70/3E 6/10 kV3×150+3×70/3E300 kcmil66.772.54,9929,850725
NTSCGERLWÖU 3×185+3×95/3E 6/10 kV3×185+3×95/3E350 kcmil71.277.46,24011,680774
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Dimensions and weights are typical values per DIN VDE 0250-813. Minimum fixed bending radius shown is 10 × OD.

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 300 mm is below 1,084 mmUse a larger drum core or a smaller cable size
Minimum bending radius
542 mm
Min. drum core diameter
≈ 1,084 mm
Cable weight on drum
239.5 kg
Copper content
84.0 kg
Indicative only: based on the datasheet outer diameter and 10 × 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 test11.0 kV AC (50 Hz)Every manufactured length
Conductor DC resistanceIEC 60228 Class 5 (tinned copper)Every manufactured length
Sample tests
Vertical flame propagationIEC 60332-1-2 / EN 60332-1-2Per production batch
Insulation & sheath elastomer physical propertiesDIN VDE 0250-813Type approval

Inspection certificate

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

Product approvals

DIN VDE 0250-813CE · RoHS 2 (2011/65/EU) · REACH

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX NTSCGERLWÖU [Size] 6/10 kV DIN VDE 0250-813 CE
Delivery form
Export wooden drums or coils, cut-to-length on request
Packaging
Heat-treated ISPM-15 timber drums with sealed cable ends
Conductor / sheath options
Custom core counts, pilot cores or sheath colours on request

Technical documents

Downloads

PDFNTSCGERLWÖU Armoured Submersible-Pump Cable – technical datasheet14 sizes · construction, technical data, approvalsXLSXNTSCGERLWÖU spec data (Excel)All 14 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.

Decode the German VDE designation NTSCGERLWÖU letter by letter.
Under DIN VDE 0250-813 nomenclature: 'NT' = flexible trailing/mobile rubber cable; 'S' = mining/heavy-duty execution; 'C' = inner semiconductive layer; 'G' = 3GI3 EPR rubber core insulation; 'E' = outer semiconductive field-control layer with split interstitial earth cores; 'R' = galvanised round steel wire armour; 'LW' = longitudinal and radial water-blocked construction (Längswasserdicht); 'Ö' = oil-resistant outer sheath; 'U' = flame-retardant 5GM5 elastomer jacket.
Why is NTSCGERLWÖU specified instead of (N)TSCGEWÖU on deep mine dewatering pumps?
While (N)TSCGEWÖU is an unarmoured MV trailing/reeling cable limited to 15–20 N/mm² tensile load on the copper conductors, deep vertical shaft dewatering pumps require both hydrostatic water-blocking ('LW') and galvanised round steel wire armour ('R') to support the heavy vertical column weight of the cable and protect against shaft rock-fall.
How are the protective earth conductors arranged in NTSCGERLWÖU?
The protective earth cross-section is divided equally into three symmetrical tinned-copper cores (e.g. 3×25/3E) laid in the outer interstices between the three semiconductive-screened phase cores. This keeps the overall cable diameter compact and balances ground-fault impedance.
Can NTSCGERLWÖU be supplied in 12/20 kV or with integrated optical fibres?
Yes. In addition to standard 3.6/6 kV and 6/10 kV ratings, we manufacture 12/20 kV constructions and hybrid versions incorporating interstitial control pilots or single-mode/multimode optical fibres for pump condition monitoring.

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NTSCGERLWÖU Armoured Submersible-Pump Cable

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Reel & motion:
- Reel type: 
- Drum core diameter (mm): 
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- Travel speed (m/min): 
- Max. acceleration: 
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- Ambient temperature: 
- Exposure (outdoor, water, oil, abrasion): 
- Destination country: 
- Equipment and operating conditions:
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