ÖPVC-JZ/OZ-YCY: screened, double-sheathed control cable with numbered cores
An engineering guide to a multicore control cable built for EMC: black PVC cores with white numerals, a PVC inner sheath, a tinned copper braid of approx. 85 % coverage and a transparent PVC outer sheath, for interference-free data and signal transmission.
1. Reading the designation
JZ = with GNYE and numbered cores (‘G’); OZ = without GNYE (‘x’). Y-C-Y = PVC inner sheath, copper braid, PVC outer sheath. The whole range is rated 300/500 V and tested at 4 kV.
Standard constructions, 2 × 0.5 to 4 G 50 mm².
Maximum core count (1 mm²).
Braid optical coverage.
Test voltage.
2. Construction
In a single-sheathed CY cable, the braid sits directly on the core insulation, so every impact and tight bend is transferred through the braid wires into the cores. The PVC inner sheath of YCY cushions the cores, keeps the braid round so its coverage stays uniform, and adds a second barrier against moisture and chemicals.
| Pos. | Element | Material / form | Engineering function |
|---|---|---|---|
| 1 | Conductor | Bare Cu, fine-wire, IEC 60228 cl. 5 | Flexibility for installation and free movement |
| 2 | Core insulation | PVC, black | +70 °C continuous, +150 °C short-circuit |
| 3 | Core marking | White numerals per DIN VDE 0293 | Clear identification of many control circuits |
| 4 | Protective conductor | GNYE core in JZ (‘G’) versions | OZ (‘x’) versions have none |
| 5 | Inner sheath | PVC | Cushions the cores, keeps the braid round, second moisture barrier |
| 6 | Overall screen | Tinned Cu braid, approx. 85 % optical coverage | EMC screening; tinning resists corrosion and eases termination |
| 7 | Outer sheath | Transparent PVC | IEC 60332-1; braid visible for inspection |
3. Technical data
| Parameter | Value | Engineering note |
|---|---|---|
| Conductor material | Bare copper strand | |
| Conductor class | IEC 60228 class 5 | |
| Core insulation | PVC | |
| Core identification | Acc. to DIN VDE 0293: black cores with white numerals; G: with GNYE | |
| Stranding | Cores stranded in layers | |
| Inner sheath | PVC | Additional mechanical protection |
| Overall screen | Tinned copper braid, optical coverage approx. 85 % | EMC-compliant; recommended for EMC applications |
| Outer sheath | PVC | |
| Sheath colour | Transparent | |
| Rated voltage U0/U | 300/500 V | Whole range, 0.5–50 mm² |
| Test voltage | 4 kV | |
| Conductor resistance | Acc. to IEC 60228 cl. 5 | |
| Insulation resistance | Min. 20 MΩ × km | |
| Current carrying capacity | Acc. to DIN VDE (technical guideline) | |
| Min. bending radius fixed | 6 × d | Larger than unscreened JZ/OZ (4 × d) because of the braid |
| Min. bending radius moved | 15 × d | |
| Operating temp. fixed | −40 °C / +80 °C | |
| Operating temp. moved | −15 °C / +70 °C | |
| Conductor temperature | +70 °C operation; +150 °C short-circuit | |
| Burning behaviour | Self-extinguishing and flame-retardant acc. to IEC 60332-1 | Single-cable test |
| Chemical resistance | Largely resistant to acids, bases and specified oils | |
| Standard | Similar to EN 50525-2-51 | |
| Compliance | RoHS; 2014/35/EU Low Voltage Directive (CE); LABS-/silicone-free during production |
4. EMC: the braid only works if it is terminated
5. Full dimension and weight tables
All 51 constructions are listed, grouped by cross-section. Bending radii are calculated from the nominal outer diameter (6 × d fixed, 15 × d moved).
| Dimension n × mm² | Version | Reference item no. | Outer Ø mm | Cu index kg/km | Weight kg/km | Min. bend radius fixed (6 × d) mm | Min. bend radius moved (15 × d) mm |
|---|---|---|---|---|---|---|---|
| 2 x 0.5 | OZ (without GNYE) | 1001093 | 7.0 | 41.0 | 70.0 | 42 | 105 |
| 3 G 0.5 | JZ (with GNYE) | 1000681 | 7.3 | 46.0 | 80.0 | 44 | 110 |
| 4 G 0.5 | JZ (with GNYE) | 1000691 | 7.9 | 55.0 | 95.0 | 47 | 118 |
| 5 G 0.5 | JZ (with GNYE) | 1000711 | 8.4 | 66.0 | 111.0 | 50 | 126 |
| 7 G 0.5 | JZ (with GNYE) | 1000720 | 9.1 | 81.0 | 140.0 | 55 | 136 |
| 12 G 0.5 | JZ (with GNYE) | 1000659 | 11.5 | 139.0 | 217.0 | 69 | 172 |
| 18 G 0.5 | JZ (with GNYE) | 1000665 | 13.6 | 156.0 | 295.0 | 82 | 204 |
| 25 G 0.5 | JZ (with GNYE) | 1000671 | 15.3 | 250.0 | 384.0 | 92 | 230 |
| Dimension n × mm² | Version | Reference item no. | Outer Ø mm | Cu index kg/km | Weight kg/km | Min. bend radius fixed (6 × d) mm | Min. bend radius moved (15 × d) mm |
|---|---|---|---|---|---|---|---|
| 2 x 0.75 | OZ (without GNYE) | 1001092 | 7.5 | 46.0 | 83.0 | 45 | 112 |
| 3 G 0.75 | JZ (with GNYE) | 1000682 | 7.9 | 58.0 | 94.0 | 47 | 118 |
| 4 G 0.75 | JZ (with GNYE) | 1000692 | 8.4 | 64.0 | 115.0 | 50 | 126 |
| 5 G 0.75 | JZ (with GNYE) | 1000712 | 9.1 | 77.0 | 136.0 | 55 | 136 |
| 7 G 0.75 | JZ (with GNYE) | 1000722 | 9.7 | 102.0 | 167.0 | 58 | 146 |
| 12 G 0.75 | JZ (with GNYE) | 1000660 | 12.7 | 177.0 | 271.0 | 76 | 190 |
| 18 G 0.75 | JZ (with GNYE) | 1000666 | 14.6 | 243.0 | 365.0 | 88 | 219 |
| 25 G 0.75 | JZ (with GNYE) | 1000672 | 17.3 | 307.0 | 480.0 | 104 | 260 |
| Dimension n × mm² | Version | Reference item no. | Outer Ø mm | Cu index kg/km | Weight kg/km | Min. bend radius fixed (6 × d) mm | Min. bend radius moved (15 × d) mm |
|---|---|---|---|---|---|---|---|
| 2 x 1 | OZ (without GNYE) | 1001096 | 7.9 | 56.0 | 98.0 | 47 | 118 |
| 3 G 1 | JZ (with GNYE) | 1000683 | 8.2 | 65.0 | 110.0 | 49 | 123 |
| 4 G 1 | JZ (with GNYE) | 1000693 | 8.8 | 78.0 | 130.0 | 53 | 132 |
| 5 G 1 | JZ (with GNYE) | 1000713 | 9.6 | 89.0 | 160.0 | 58 | 144 |
| 7 G 1 | JZ (with GNYE) | 1000723 | 10.4 | 113.0 | 194.0 | 62 | 156 |
| 12 G 1 | JZ (with GNYE) | 1000661 | 13.6 | 188.0 | 330.0 | 82 | 204 |
| 18 G 1 | JZ (with GNYE) | 1000667 | 15.5 | 286.0 | 444.0 | 93 | 232 |
| 25 G 1 | JZ (with GNYE) | 1000673 | 17.9 | 389.0 | 560.0 | 107 | 268 |
| 34 G 1 | JZ (with GNYE) | 1000678 | 20.3 | 505.0 | 738.0 | 122 | 304 |
| 50 G 1 | JZ (with GNYE) | 1000709 | 23.6 | 688.0 | 1,030.0 | 142 | 354 |
| Dimension n × mm² | Version | Reference item no. | Outer Ø mm | Cu index kg/km | Weight kg/km | Min. bend radius fixed (6 × d) mm | Min. bend radius moved (15 × d) mm |
|---|---|---|---|---|---|---|---|
| 2 x 1.5 | OZ (without GNYE) | 1001095 | 8.7 | 65.0 | 122.0 | 52 | 130 |
| 3 G 1.5 | JZ (with GNYE) | 1000684 | 9.0 | 83.0 | 145.0 | 54 | 135 |
| 4 G 1.5 | JZ (with GNYE) | 1000694 | 9.7 | 100.0 | 168.0 | 58 | 146 |
| 5 G 1.5 | JZ (with GNYE) | 1000714 | 10.6 | 125.0 | 205.0 | 64 | 159 |
| 7 G 1.5 | JZ (with GNYE) | 1000724 | 11.4 | 196.0 | 266.0 | 68 | 171 |
| 12 G 1.5 | JZ (with GNYE) | 1000662 | 15.2 | 280.0 | 425.0 | 91 | 228 |
| 18 G 1.5 | JZ (with GNYE) | 1000668 | 17.5 | 389.0 | 565.0 | 105 | 262 |
| 25 G 1.5 | JZ (with GNYE) | 1000674 | 20.5 | 535.0 | 850.0 | 123 | 308 |
| Dimension n × mm² | Version | Reference item no. | Outer Ø mm | Cu index kg/km | Weight kg/km | Min. bend radius fixed (6 × d) mm | Min. bend radius moved (15 × d) mm |
|---|---|---|---|---|---|---|---|
| 3 G 2.5 | JZ (with GNYE) | 1000685 | 10.5 | 146.0 | 197.0 | 63 | 158 |
| 4 G 2.5 | JZ (with GNYE) | 1000699 | 11.5 | 167.0 | 254.0 | 69 | 172 |
| 5 G 2.5 | JZ (with GNYE) | 1000717 | 12.5 | 200.0 | 302.0 | 75 | 188 |
| 7 G 2.5 | JZ (with GNYE) | 1000726 | 14.0 | 288.0 | 395.0 | 84 | 210 |
| 12 G 2.5 | JZ (with GNYE) | 1000663 | 18.2 | 477.0 | 622.0 | 109 | 273 |
| 18 G 2.5 | JZ (with GNYE) | 1000669 | 22.4 | 598.0 | 958.0 | 134 | 336 |
| Dimension n × mm² | Version | Reference item no. | Outer Ø mm | Cu index kg/km | Weight kg/km | Min. bend radius fixed (6 × d) mm | Min. bend radius moved (15 × d) mm |
|---|---|---|---|---|---|---|---|
| 4 G 4 | JZ (with GNYE) | 1000702 | 13.7 | 237.0 | 394.0 | 82 | 206 |
| 5 G 4 | JZ (with GNYE) | 1000718 | 15.4 | 280.0 | 445.0 | 92 | 231 |
| 7 G 4 | JZ (with GNYE) | 1000727 | 16.2 | 388.0 | 610.0 | 97 | 243 |
| Dimension n × mm² | Version | Reference item no. | Outer Ø mm | Cu index kg/km | Weight kg/km | Min. bend radius fixed (6 × d) mm | Min. bend radius moved (15 × d) mm |
|---|---|---|---|---|---|---|---|
| 4 G 6 | JZ (with GNYE) | 1000705 | 15.8 | 318.0 | 485.0 | 95 | 237 |
| 5 G 6 | JZ (with GNYE) | 1000719 | 17.0 | 441.0 | 609.0 | 102 | 255 |
| Dimension n × mm² | Version | Reference item no. | Outer Ø mm | Cu index kg/km | Weight kg/km | Min. bend radius fixed (6 × d) mm | Min. bend radius moved (15 × d) mm |
|---|---|---|---|---|---|---|---|
| 4 G 10 | JZ (with GNYE) | 1000695 | 19.4 | 558.0 | 735.0 | 116 | 291 |
| 5 G 10 | JZ (with GNYE) | 1000715 | 21.8 | 714.0 | 1,105.0 | 131 | 327 |
| Dimension n × mm² | Version | Reference item no. | Outer Ø mm | Cu index kg/km | Weight kg/km | Min. bend radius fixed (6 × d) mm | Min. bend radius moved (15 × d) mm |
|---|---|---|---|---|---|---|---|
| 4 G 16 | JZ (with GNYE) | 1000697 | 22.6 | 804.0 | 1,165.0 | 136 | 339 |
| Dimension n × mm² | Version | Reference item no. | Outer Ø mm | Cu index kg/km | Weight kg/km | Min. bend radius fixed (6 × d) mm | Min. bend radius moved (15 × d) mm |
|---|---|---|---|---|---|---|---|
| 4 G 25 | JZ (with GNYE) | 1000700 | 28.9 | 1,310.0 | 1,720.0 | 173 | 434 |
| Dimension n × mm² | Version | Reference item no. | Outer Ø mm | Cu index kg/km | Weight kg/km | Min. bend radius fixed (6 × d) mm | Min. bend radius moved (15 × d) mm |
|---|---|---|---|---|---|---|---|
| 4 G 35 | JZ (with GNYE) | 1000701 | 35.6 | 1,610.0 | 2,120.0 | 214 | 534 |
| Dimension n × mm² | Version | Reference item no. | Outer Ø mm | Cu index kg/km | Weight kg/km | Min. bend radius fixed (6 × d) mm | Min. bend radius moved (15 × d) mm |
|---|---|---|---|---|---|---|---|
| 4 G 50 | JZ (with GNYE) | 1002783 | 37.2 | 2,342.0 | 3,200.0 | 223 | 558 |
6. Application envelope
Power, control and connecting cable in electrical facilities, for interference-free data and signal transmission, in fixed laying and flexible applications with free movement, without tensile stress and without forced guidance. Suitable for dry, humid and wet rooms. Outdoor use only with UV protection; not for burial.
7. Comparison
| Type | Screen | Sheath | Bending (fixed) | Cores | Typical use |
|---|---|---|---|---|---|
| ÖPVC-JZ/OZ | None | Single PVC, grey | 4 × d fixed | Numbered cores | General control wiring |
| ÖPVC-JZ/OZ-YCY | Tinned Cu braid ≈85 % | PVC inner + transparent outer | 6 × d fixed | Numbered cores | Multicore control with EMC needs |
| ÖPVC-JB/OB-YCY | Tinned Cu braid ≈85 % | PVC inner + transparent outer | 6 × d fixed | Coloured cores (≤5), 0.6/1 kV from 25 mm² | Power and drive cables |
| Single-sheath CY | Tinned Cu braid | Braid under outer sheath only | Thinner | Numbered or coloured | Light screened control |
| PUR chain cable, screened | High-coverage braid | PUR/TPE | Chain-rated | Various | Drag chains, robots |
8. Design calculations
9. Certification and traceability
This cable is RoHS-conform, CE-conform to the 2014/35/EU Low Voltage Directive and LABS-/silicone-free during production, with flame behaviour to IEC 60332-1. FeiChun Cable holds a complete export certification portfolio — including CE, UKCA, VDE, EAC, ATEX and IECEx — and every certificate supplied is checked against the exact type, voltage, factory and standard of the order.
Routine tests
Conductor resistance, 4 kV voltage test, insulation resistance, braid continuity, core numbering, dimensions and marking.
Type tests
IEC 60332-1 flame, sheath ageing, cold behaviour, oil resistance on request.
Delivery documents
Approved datasheet, test report per drum, batch number and length marking.
10. FAQ
JZ/OZ-YCY or JB/OB-YCY?
JZ/OZ-YCY has black numbered cores and many-core designs up to 50 cores for control circuits. JB/OB-YCY has coloured cores and goes to 185 mm² at 0.6/1 kV for power and drive leads.
Why a transparent sheath?
The braid stays visible, so crushed braid or poor terminations can be spotted during inspection.
Is 85 % coverage enough?
For typical industrial EMC, yes, if the braid is bonded 360° at both ends with EMC glands. Termination quality matters more than coverage.
Earth the braid at one or both ends?
Both ends for drives and high-frequency noise; for sensitive analogue signals with ground-loop problems, follow the equipment manufacturer’s instructions.
Can it go in a drag chain?
No: free movement only, without tensile stress or forced guidance.
Why 6 × d instead of 4 × d?
The braid and inner sheath add stiffness; a tighter radius would deform the braid and open gaps in its coverage.
Technical and project enquiries: [email protected]
+86 13855123218
