Application & Operating Conditions
KYFLY is a 300/500 V flexible flat PVC power and control cable engineered to DIN VDE 0281-403 for overhead workshop cranes, electric wire-rope and chain hoists, automated warehouse stacker trolleys, plating lines, and machine tools operating under medium mechanical stress and repeated single-plane bending.
Overhead Bridge Cranes & Hoist Loops
Delivers 12-core, 18-core, and 24-core control and limit-switch circuits along C-track and I-beam trolley runways while packing into a fraction of the parking length required by round cables.
High-Density 5×4×0.5 BD Signal Transmission
Bundle-stranded (BD) 20-conductor star-quad/group architecture (8.1 × 37.1 mm) maintains balanced loop geometry and flex life for multi-axis crane telemetry and PLC I/O.
Dry, Damp & Wet Industrial Halls
Smooth black PVC flat sheath resists moisture, aqueous coolants, and sliding friction when stacked multi-layer on multi-tier festoon trolley saddles.
Multi-Cable Saddle Stacking Tip: When stacking multiple flat festoon cables on a single trolley saddle, place thicker power cables (such as NGFLGOEU) on the top saddle tier and lighter multi-core KYFLY control cables beneath with 1–2 mm lateral clearance inside saddle clamps.
Cable Construction (DIN VDE 0281-403 Flat Profile)
Engineered with parallel 4-core or multi-core bundle groups wrapped in low-friction separating tape inside an extruded flat black PVC web so individual conductors flex freely without buckling.
| Layer / Component | Material & DIN VDE 0281-403 Engineering Specification |
|---|---|
| 1. Conductors | Fine-stranded bare copper (Cu-bare) conductors in accordance with DIN VDE 0295 Category 5 / IEC 60228 Class 5 |
| 2. Core Insulation | Flexible PVC core insulation formulated for repeated single-plane bending down to -25°C |
| 3. Core Identification | 5-, 20- (5×4 BD), and 28-wire special color coding, or black numbered cores with one green/yellow (GN/YE) protective earth core |
| 4. Parallel Bundle Lay-Up | Sub-groups stranded with short pitch, wrapped in separating tape, and arranged parallel in one horizontal plane |
| 5. Outer Sheath | Extruded black flexible PVC flat sheath per DIN VDE 0281-403 with smooth low-friction faces for multi-layer stacking |
Parallel bundle-stranded flat PVC profile (e.g. 5×4×0.5 BD / 24-core) for compact single-plane crane trolley festoon loops.
Technical Characteristics
Electrical and thermal performance data verified in reference to DIN VDE 0281-403 for indoor and covered crane festoon installations.
| Parameter | DIN VDE 0281-403 Rated Value |
|---|---|
| Nominal Voltage (U0/U) | 300 / 500 V AC |
| Conductor Class | DIN VDE 0295 Category 5 (IEC 60228 Class 5 bare copper) |
| Max. Conductor Operating Temp. | +70°C |
| Ambient Temperature (Mobile) | -25°C to +70°C (guided trolley & hoist loops) |
| Ambient Temperature (Fixed) | -35°C to +70°C |
| Bending Geometry | Single-plane bending across minor axis H (min. mobile bend radius ~10 × H) |
| Operating Environment | Dry, damp, and wet industrial workshops, crane bays, and conveyor halls |
| Compliance | RoHS & REACH compliant; flame-retardant per IEC 60332-1-2 |
Dimensional & Copper Weight Schedule — KYFLY Flat PVC Cable
Standard 7-size multi-core and bundle-stranded (BD) control schedule for crane festoon systems (mass columns corrected to kg/km; additional 4G1.5–4G70 power sizes available to order).
KYFLY 300/500 V Unscreened Flexible Flat PVC Crane Festoon Series
| Part Designation | External Dimensions H × W (ca. mm) | Copper Weight (kg/km) | Approx. Cable Weight (kg/km) | Sheath Color |
|---|---|---|---|---|
| KYFLY 5 × 4 × 0.5 BD | 8.1 × 37.1 | 96.00 | 402.00 | Black |
| KYFLY 12 × 0.75 | Project / Custom* | 86.40 | 260.00 | Black |
| KYFLY 18 × 0.75 | Project / Custom* | 130.00 | 438.00 | Black |
| KYFLY 24 × 0.75 | Project / Custom* | 173.00 | 490.00 | Black |
| KYFLY 18 × 1 | Project / Custom* | 173.00 | 450.00 | Black |
| KYFLY 24 × 1 | Project / Custom* | 230.40 | 590.00 | Black |
| KYFLY 18 × 1.5 | Project / Custom* | 259.00 | 620.00 | Black |
KYFLY vs. KYFLCY, KYFLTFCY & NGFLGOEU Flat Festoon Comparison
Match your crane festoon cable insulation, EMC screening, and weather resistance to the exact installation environment.
| Flat Festoon Series | Material, EMC Shielding & Ideal Operating Environment |
|---|---|
| KYFLY (This Page) | Unscreened Flat PVC (300/500 V, -25°C/+70°C) — compact, cost-effective control & signal festoon loops in dry/damp/wet indoor halls without VFD EMI. |
| KYFLCY | Copper-screened Flat PVC (EMC type) — adds braided copper shielding for VFD motor feeders and noise-immune crane encoders. |
| KYFLTFCY | Copper-screened Flat PVC + Dual Steel Support Ropes — adds axial load-bearing suspension ropes for deep vertical hoist loops. |
| NGFLGOEU / NGFLGÖU | Unscreened Flat EPR/PCP Rubber (300/500 V & 0.6/1 kV, -35°C/+90°C) — heavy-duty choice for uncovered outdoor port cranes, UV, and sub-zero weather. |
Frequently Asked Questions (FAQ)
Answers to frequent engineering questions on KYFLY flat PVC crane festoon cables.
What does “BD” mean in KYFLY 5 x 4 x 0.5 BD?
“BD” stands for Bündelverseilung (bundle stranding): twenty 0.5 mm² insulated conductors are stranded into five compact 4-core sub-bundles laid side-by-side inside an 8.1 x 37.1 mm flat PVC jacket. Bundle stranding distributes bending strain evenly across fine 0.5 mm² signal wires during high-cycle trolley travel.
How does KYFLY compare with H07VVH6-F flat PVC cable?
While H07VVH6-F (EN 50214) uses single side-by-side core rows primarily for elevator and light hoist loops, KYFLY (referenced to DIN VDE 0281-403) supports multi-core bundle-grouped layouts up to 24+ cores (such as 5x4x0.5 BD, 24×1, and 18×1.5 mm²) so wide core counts remain narrow enough to fit standard crane festoon saddles and flat glands.
When should I upgrade from KYFLY flat PVC to NGFLGOEU flat rubber cable?
Choose KYFLY for indoor workshops, electroplating bays, warehouse cranes, and covered halls between -25°C and +70°C. Upgrade to NGFLGOEU EPR/PCP rubber if the crane operates outdoors under direct sunlight, salt mist, heavy oil splash, sub-zero flexing down to -35°C, or +90°C continuous conductor load.
Can TEBAOFLEX supply flat cable glands and custom cut-to-loop lengths?
Yes. In addition to standard 500 m export drums, TEBAOFLEX supplies custom cut lengths matched to your crane bridge span and can confirm exact H x W dimensions for matching flat EMC/IP68 cable glands.
Request a Quote or Drawing for KYFLY Flat PVC Festoon Cable
Send your required core count, conductor cross-section, max saddle width, and total run length—our team responds within 24 hours with factory pricing.
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