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Product

75–160 kV DC multicore X-ray HV cable75 – 160 kV DC3 / 4 Filament CoresNEMA XR7 / R10 / R24

HXC X-Ray Multicore X-Ray High-Voltage Cable75 kV to 160 kV DC 3-core & 4-core X-ray cathode/anode HV cable (NEMA XR7 / R10 / R24)

Multicore X-ray high-voltage cable (HXC X-Ray) rated 75 kV, 100 kV, 125 kV and 160 kV DC with 3 or 4 central dual-filament and grid-bias conductors, inner/outer semiconductive stress-grading layers, EPR/silicone HV dielectric, and tinned copper screen.

Low-EMC design
EMC screen
Oil-resistant
Flame-retardant
Order designation
HXC-XR-75KV-3C-MED
Rated DC voltage
75 kV DC
Standard cone
NEMA XR7 CA11 3-Pin
Overall OD
19.5 mm
Weight
510 kg/km
All sizes (12)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
DC voltage range
75 to 160 kV DC
Bipolar ±75 kV (150 kV) or unipolar
Central cores
3 or 4 Cores
Large/small focal-spot filament + grid
Core-to-core U
2.5 – 5.0 kV DC
Filament & Wehnelt grid isolation
Capacitance
110–145 pF/m
Low stored energy for fast kVp rise
Cone standards
CA11 / R10 / R24
NEMA XR7 Federal & Euro EN 60522
Bend radius
5–6 × OD
C-arm, CT gantry & NDT crawler flex

Typical values for this cable type, based on IEC 60522 / NEMA XR7 / IEC 60601-2-28 — confirmed in the datasheet and quotation for your order.

Application fit

Is HXC X-Ray right for your machine?

Carries both the −75 kV to −160 kV DC high voltage and the low-voltage AC filament heating / grid-bias currents simultaneously to the X-ray tube cathode.

Free-hanging vertical run

Suitable

Flexible EPR or silicone HV dielectric withstands overhead ceiling-suspended radiographic tube crane articulation.

Self-supporting pendant & push-button drop

Suitable

Compact low-weight 75–100 kV DC builds flex smoothly on surgical C-arms and mobile NDT crawlers.

Switchgear & control cabinet wiring

Suitable

100 % grounded copper braid and dual semicon layers eliminate corona and ozone inside diagnostic imaging suites.

Energy chain / drag chain

With conditions

Standard series supports C-arm/crane flexing; specify ultra-flexible silicone gantry grade for high-speed CT slip-ring loops.

Typical machinesMedical Radiography, Fluoroscopy & Surgical C-ArmsIndustrial NDT Weld & Aerospace Casting InspectionAirport Baggage & Cargo Security X-Ray ScannersX-Ray Diffraction (XRD) & X-Ray Fluorescence (XRF)Thickness Gauging in Steel & Aluminium Rolling Mills

Construction

Layer by layer

Representative 3-core or 4-core cathode X-ray cable: 3 (or 4) × 1.5–2.5 mm² FEP/EPR-insulated filament & grid cores laid around a conductive core filler + extruded inner semiconductive layer + void-free HV EPR/HEPR or Silicone dielectric + outer semiconductive layer + ≥ 85 % tinned Cu braid + medical grey/black PVC, PUR or Silicone jacket.

123456
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
13 or 4 central filament & grid-bias conductors2 × 1.5/2.5 mm² tinned copper filament heater cores (Common, Large Focus, Small Focus) + 1 or 2 × 0.75/1.0 mm² grid/control cores insulated to 2.5–5.0 kV DCSupplies up to 15 A filament heating current and grid cutoff bias at full −75 to −160 kV cathode potential
2Inner semiconductive equipotential layerExtruded semiconductive elastomer encapsulating the 3-core or 4-core central filament bundleTransforms the multi-core bundle into a smooth cylindrical HV electrode free of internal corona
3Void-free HV EPR/HEPR or Silicone dielectricHigh-dielectric-strength ethylene propylene rubber (EPR) or medical-grade silicone rubber rated 75, 100, 125 or 160 kV DCWithstands full cathode/anode DC potential with low capacitance (110–145 pF/m)
4Outer semiconductive stress-control layerStrippable semiconductive layer or conductive tape under the metallic shieldPrevents partial discharge between the HV insulation and the grounded metal braid
5≥ 85 % tinned copper braided earth shieldHeavy tinned copper braid connected to the grounded X-ray generator tank and tube housingCarries tube return current, confines the electric field and provides operator touch safety
6Medical Grey PVC / NDT Black PUR or Silicone jacketNon-marking Medical Grey (RAL 7035/7047) PVC/Silicone for hospitals or abrasion-resistant Black PUR for industrial NDT crawlersResists hospital disinfectants, X-ray transformer oil and workshop abrasion

HXC-XR-MED (75 / 90 / 100 kV DC Medical C-Arm & Rad)

3-core or 4-core extra-flexible medical grey cable for bipolar ±75 kV (150 kVp) diagnostic X-ray tubes (CA11 /CA12 Federal 3/4-pin cones)

HXC-XR-NDT (100 / 125 / 160 kV DC Industrial NDT)

3-core or 4-core heavy-duty black PUR-jacketed cable for unipolar 160 kV or bipolar 320 kV NDT tubes (Euro R10, R24 & R30 cones)

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on IEC 60522 / NEMA XR7 / IEC 60601-2-28. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated DC working voltage
75 kV, 90 kV, 100 kV, 125 kV & 160 kV DC (to ground)
Bipolar tube system rating
150 kVp (±75 kV) · 200 kVp (±100 kV) · 320 kVp (±160 kV)
Filament core-to-core rating
2.5 kV to 5.0 kV DC (up to 15 A AC/DC filament current)
Factory DC proof test
1.35 × to 1.5 × rated U_DC for 15 min
Nominal capacitance
110 pF/m to 145 pF/m

Thermal

Operating temperature (EPR/PVC/PUR)
−25 °C to +85 °C
Operating temperature (Silicone)
−40 °C to +150 °C

Mechanical

Central conductor layout
3-core (2×1.5/2.5 + 1×1.0) or 4-core (2×1.5/2.5 + 2×0.75)
Min. bend radius
5 × OD static · 8 × OD dynamic C-arm/crane

Resistance

Disinfectant & oil resistance
Resistant to hospital cleaners & insulating oil
Flame retardancy
IEC 60332-1-2 / UL VW-1

Reference standards

X-ray cable & receptacle stds
NEMA XR7 (CA11/CA12) · IEC 60522 · EN 60601-2-28
Industrial NDT cone interface
R10 (100 kV) · R24 (160/225 kV) · R30 (300 kV)

Identification

Outer sheath colour
Medical Light Grey (RAL 7035) or NDT Matte Black
Surface legend
TEBAOFLEX HXC X-RAY [kV DC] [3C/4C] NEMA XR7 / IEC 60522
Customs tariff (HS)
8544.60 / 9022.90

Sizes

12 standard HXC X-Ray 75–160 kV DC multicore high-voltage cable configurations

Covers 3-core and 4-core medical radiographic/C-arm cables (75–100 kV DC) and industrial NDT / XRD cables (100–160 kV DC).

kV rating, filament cores, cone type & OD
Order designationCentral Filament CoresRated U_DC
kV DC		Standard Cone FitDielectric OD
mm		Overall OD
mm		Capacitance
pF/m		Weight
kg/km		Enquiry
Medical Diagnostic & C-Arm X-Ray HV Cables (75 kV to 100 kV DC, ±75–100 kV Bipolar)
HXC-XR-75KV-3C-SLIM3C (2×1.5 + 1×0.75 mm²)75NEMA XR7 3-Pin / Mini13.517.5135420
HXC-XR-75KV-3C-MED3C (2×2.0 + 1×1.0 mm²)75NEMA XR7 CA11 3-Pin15.219.5128510
HXC-XR-75KV-4C-MED4C (2×1.5 + 2×0.75 mm²)75NEMA XR7 CA12 4-Pin15.519.8132530
HXC-XR-90KV-3C-MED3C (2×2.0 + 1×1.0 mm²)90NEMA XR7 CA11 3-Pin16.821.2120595
HXC-XR-90KV-4C-MED4C (2×1.5 + 2×0.75 mm²)90NEMA XR7 CA12 4-Pin17.021.5124615
HXC-XR-100KV-4C-SIR4C (2×1.5 + 2×0.75 mm²)100CA12 / CT Gantry Flex18.223.0138690
Industrial NDT, Security & Analytical XRD HV Cables (100 kV to 160 kV DC)
HXC-XR-100KV-3C-R103C (2×2.5 + 1×1.5 mm²)100Euro R10 (EN 60522)18.022.8118680
HXC-XR-100KV-4C-R104C (2×2.5 + 2×1.0 mm²)100Euro R10 4-Pin18.423.2122705
HXC-XR-125KV-3C-R243C (2×2.5 + 1×1.5 mm²)125Euro R24 (EN 60522)21.026.2115890
HXC-XR-125KV-4C-R244C (2×2.5 + 2×1.0 mm²)125Euro R24 4-Pin21.426.6118920
HXC-XR-160KV-3C-R243C (2×2.5 + 1×1.5 mm²)160Euro R24 (160 kV)24.530.01101,180
HXC-XR-160KV-4C-R244C (2×2.5 + 2×1.0 mm²)160Euro R24 4-Pin (160 kV)24.830.51121,215
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Available as bulk cable on reels or complete factory-vulcanised double-ended assemblies with NEMA XR7 CA11/CA12 or Euro R10/R24 cones.

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
Core-to-screen HV DC proof test (105 kV to 225 kV DC)15-minute DC hold test between shorted central cores and grounded outer braid100 % of cable & assemblies
Filament core-to-core 5.0 kV DC dielectric testVerify inter-conductor insulation between Common, Large Focus, Small Focus & Grid cores100 % of cable & assemblies
Sample tests
Partial discharge & capacitance uniformity testPD ≤ 5 pC and capacitance within ± 5 % of nominalProduction lot

Inspection certificate

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

Product approvals

NEMA XR7 & IEC 60522 X-Ray HV Cable CompliantIEC 60601-2-28 Medical X-Ray Assembly Compatible

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX HXC X-RAY HIGH VOLTAGE CABLE [kV DC] NEMA XR7 / IEC 60522
Delivery form
Bulk reels (50 m / 100 m) or terminated HV cone assemblies (2 m to 25 m)
Terminations
Federal Standard CA11 (3-pin), CA12 (4-pin), Euro R10, R24 & pancake plugs
Lead time
3–4 weeks ex-works

Technical documents

Downloads

PDFHXC X-Ray Multicore X-Ray High-Voltage Cable – technical datasheet12 sizes · construction, technical data, approvalsXLSXHXC X-Ray spec data (Excel)All 12 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 an X-ray cathode cable have 3 or 4 central conductors inside a single high-voltage insulation wall?
An X-ray tube cathode sits at −75 kV to −160 kV DC relative to ground, yet its tungsten filaments require low-voltage, high-current AC/DC heating (typically 5–15 V, 4–12 A) to emit electrons, plus a 1–4 kV bias on the Wehnelt focusing cup/grid. Running 3 or 4 individually insulated low-voltage conductors inside the central semiconductive equipotential core allows one HV cable to supply both −160 kV DC and dual-focus filament heating.
How can two 75 kV DC cables operate a 150 kVp medical X-ray tube?
Medical diagnostic X-ray tubes use a bipolar (center-grounded) circuit: the cathode cable is driven to −75 kV DC and the anode cable is driven to +75 kV DC relative to the grounded tube housing, producing a 150 kVp accelerating potential across the tube using two compact 75 kV cables.
Why is low cable capacitance (110–145 pF/m) important in pulsed fluoroscopy and radiographic exposures?
In high-frequency inverter X-ray generators, the cable capacitance acts as a smoothing filter but also stores electrostatic energy (E = ½ C V²). Excessive cable capacitance slows down kVp rise/fall times during millisecond radiographic pulses and causes post-exposure afterglow radiation.
What is the difference between NEMA XR7 (CA11/CA12) and European EN 60522 (R10/R24/R30) X-ray cones?
NEMA XR7 (Federal Standard CA11 3-pin and CA12 4-pin) is the universal standard on medical diagnostic X-ray tubes (75–100 kV DC). European EN/IEC 60522 rubber-cone terminals (R10 for 100 kV, R24 for 160/225 kV, and R30 for 300 kV) are standard on industrial NDT, security, and analytical X-ray systems.

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HXC X-Ray Multicore X-Ray High-Voltage Cable

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