Quick answer: (N)TMCGCW11Y is a German DIN VDE 0250-813 flexible single-core medium-voltage power cable (3.6/6 kV to 18/30 kV) built with Class 5 tinned copper, triple-extruded 3GI3 EPR insulation, concentric copper wire screening, and an abrasion-resistant 11Y polyurethane (PUR) outer sheath. Its closest rubber-sheathed VDE counterpart is (N)TMCGCWOEU, while North American projects evaluate flexible single-core UL 1072 / ICEA S-93-639 Type MV-105 constructions.
Applicable standards: DIN VDE 0250-813, DIN VDE 0207-20/21, IEC 60228 Class 5, IEC 60502-2, UL 1072.
What Does the (N)TMCGCW11Y Designation Mean Under DIN VDE 0250-813?
Under DIN VDE 0250-813, the (N)TMCGCW11Y code defines a screened single-core flexible medium-voltage cable engineered for mobile mining substations, switchgear cubicles, transformer jumpers, and festoon loops. Unlike rigid IEC 60502-2 distribution cables, every layer is compounded for tight cabinet routing, short-circuit electrodynamic stress, and severe cut or oil exposure.
Procurement reviews frequently misread the trailing characters of German VDE designations. In DIN VDE coding, G identifies the EPR insulation compound, whereas 11Y as a complete two-part code specifies the thermoplastic polyurethane (PUR) outer jacket rather than PVC.
| VDE Code Element | Physical Layer | Engineering Specification (DIN VDE 0250-813) |
|---|---|---|
| (N) | Standard alignment | National German construction aligned with DIN VDE 0250-813 design rules without direct CENELEC harmonization. |
| TM | Cable family | Flexible single-core sheathed cable (Trommel-/Mantelleitung) for mining, tunnelling, and mobile MV switchgear. |
| C (first) | Field-control layers | Extruded inner conductor semiconductive screen and outer strippable insulation semiconductive layer. |
| G | Dielectric insulation | Ethylene propylene rubber (EPR compound 3GI3 per DIN VDE 0207-20), rated 90 °C continuous and 250 °C short-circuit. |
| CW | Metallic screen | Concentric helical or braided tinned copper wire screen sized for earth-fault current return and touch safety. |
| 11Y | Outer sheath | Heavy-duty polyurethane (TMPU / 11Y per DIN VDE 0207-21) providing high tear, rock-cut, and hydraulic-oil resistance. |
For full dimensional tables covering 25 mm² to 300 mm² single-core cross-sections, inspect our (N)TMCGCW11Y 3.6/6 kV and 6/10 kV single-core PUR mining cable product datasheet and the companion (N)TMCGCW11Y technical specification guide.
How Does (N)TMCGCW11Y Cross-Reference Across International Standards?
No non-VDE standard reproduces the exact combination of a Class 5 tinned copper core, 3GI3 EPR dielectric, concentric copper wire screen, and 11Y PUR sheath under a single code. Engineers cross-referencing (N)TMCGCW11Y across IEC, ICEA/UL, British, or Australian frameworks must compare voltage class (U0/U), stranding class, and fault-screen area.
| Standard / Region | Closest Public Designation | Typical Voltage Rating | Conductor & Insulation | Metallic Screen & Jacket | Key Engineering Differences |
|---|---|---|---|---|---|
| DIN VDE 0250-813 (Germany / Europe) | (N)TMCGCW11Y | 3.6/6 kV to 18/30 kV | IEC 60228 Class 5 tinned Cu; 3GI3 EPR (90 °C) | Concentric Cu wire screen; 11Y PUR sheath | Reference single-core MV PUR construction for sharp rock abrasion, oil contact, and tight switchgear bends. |
| DIN VDE 0250-813 (Germany / Europe) | (N)TMCGCWOEU | 3.6/6 kV to 18/30 kV | IEC 60228 Class 5 tinned Cu; 3GI3 EPR (90 °C) | Concentric Cu wire screen; 5GM3/5GM5 PCP rubber | Identical electrical core; polychloroprene rubber sheath offers higher flame self-extinguishing margin than standard PUR. |
| UL 1072 / ICEA S-93-639 (North America) | Type MV-105 (Flexible Class I/K) | 5 kV, 8 kV, 15 kV, 25 kV, 35 kV | ASTM B172 flexible tinned Cu; 105 °C EPR (100% or 133% wall) | Copper tape or wire shield; CPE or TPU jacket | Standard catalog MV-105 uses rigid Class B stranding; flexible Class I stranding and wire shield must be explicitly specified. |
| IEC 60502-2 / CEI (International / Italy) | RG7H1R (Single-Core) | 3.6/6 kV to 18/30 kV | IEC 60228 Class 5 Cu; HEPR G7 (90 °C) | Copper wire/tape screen; ST2 PVC sheath | Suitable for fixed indoor trays and ducts; PVC jacket lacks the low-temperature flexibility and cut resistance of 11Y PUR. |
| ICEA S-75-381 (North America Mining) | Single-Core Shielded Jumper / SHD | 5 kV to 25 kV | Flexible rope-lay tinned Cu; 90 °C EPR | Tinned Cu braid shield; heavy-duty thermoset CPE/PCP | Sized in AWG/kcmil with MSHA flame compliance; check outer diameter compatibility with European metric stress cones. |
Which VDE Single-Core or Multi-Core Variant Fits Your Duty?
Selecting between VDE medium-voltage variants depends on whether the circuit runs as segregated single-phase jumpers inside a substation skid or as a unified three-phase trailing feeder to mobile machinery. Matching sheath polymer and core geometry avoids premature jacket splitting and gland plate overheating.
| VDE Model Designation | Core Arrangement | Outer Sheath | Primary Application & Selection Trigger |
|---|---|---|---|
| (N)TMCGCW11Y | 1 × 25 to 1 × 300 mm² | PUR (11Y), red or yellow | Abrasive tunnel switchgear interconnects, festoon loops, and hydraulic-oil-exposed mobile substations. |
| (N)TMCGC11Y | 1 × 25 to 1 × 240 mm² | PUR (11Y) | Compact screened single-core PUR power leads for enclosed MV converter cabinets and skid transformers. |
| (N)TMCGCWOEU | 1 × 25 to 1 × 400 mm² | PCP rubber (5GM3 / 5GM5) | Projects requiring IEC 60332-1-2 flame retardancy, welding-spatter resistance, or outdoor UV stability without PUR hydrolysis risk. |
| (N)TSCGEWOEU | 3 × 25 + 3E to 3 × 185 + 3E | PCP rubber (5GM5) | Three-phase motorized reeling drums and open-pit excavator trailing feeders where single-core cables cannot be spooled together. |
Explore additional medium-voltage flexible constructions across our mining and tunnelling cables catalog.
What Must Be Verified Before Approving a Substitute?
Approving a cross-reference for a single-core medium-voltage cable requires checking five electrical and mechanical parameters beyond nominal conductor area. Overlooking insulation wall thickness, concentric screen cross-section, or magnetic gland-plate eddy currents can trigger termination flashover or thermal runaway under fault load.
Engineering boundary: single-core eddy-current and screen fault limits
Never pass individual single-core AC medium-voltage cables through separate holes in a carbon-steel gland plate without non-magnetic Grade 316 stainless-steel or brass inserts. Always verify the copper wire screen adiabatic short-circuit withstand (I²t) against the upstream earth-fault relay clearing time before substituting another standard.
- 1. System voltage and U0/U insulation class: Confirm both phase-to-earth (U0) and phase-to-phase (U) ratings—for example, 6/10 kV (Um = 12 kV)—especially in unearthed or impedance-earthed mining networks that require 133% insulation coordination under ICEA/UL rules.
- 2. Metric-to-AWG conductor and lug barrel fit: Metric Class 5 conductors (such as 95 mm² or 120 mm²) have larger compacted bundle diameters than concentric Class 2 cores and differ from 3/0 AWG (85.0 mm²) or 4/0 AWG (107.2 mm²). Match flared-barrel compression lugs and cold-shrink stress cones to actual core diameter over insulation.
- 3. Concentric copper screen cross-section: DIN VDE 0250-813 specifies defined copper screen areas (typically 16 mm², 25 mm², or 35 mm² depending on phase conductor size). Thin copper-tape shields from fixed industrial cables cannot carry equivalent earth-fault currents or withstand flexing fatigue.
- 4. Minimum bending radius and trefoil cleating: Verify static bending radius (typically 6 × D to 10 × D) and dynamic routing radius (12 × D to 15 × D), and ensure trefoil cleat spacing withstands peak short-circuit electrodynamic thrust.
- 5. Flame vs. abrasion jacket trade-off: Standard 11Y polyether/polyester PUR excels in rock-cut and oil resistance down to −40 °C, whereas underground coal galleries frequently mandate flame-retardant polychloroprene (5GM3/5GM5) or halogen-free compounds.
Frequently Asked Questions About (N)TMCGCW11Y Cross-References
Procurement and maintenance engineers most commonly ask whether rubber-sheathed VDE cables, fixed IEC cables, or North American MV-105 leads can replace (N)TMCGCW11Y directly. The answers below summarize the exact engineering conditions where substitution succeeds or must be rejected.
Can (N)TMCGCWOEU directly replace (N)TMCGCW11Y?
Electrical core geometry, 3GI3 EPR dielectric thickness, and concentric copper wire screening are identical under DIN VDE 0250-813. Substitution is valid when extreme rock-cut abrasion or sharp edge dragging does not require a 11Y PUR jacket, and when outer diameter tolerances fit existing glands.
Is UL 1072 Type MV-105 an automatic substitute for (N)TMCGCW11Y?
Standard off-the-shelf Type MV-105 is not an automatic substitute because it typically uses rigid Class B bare copper stranding and a thin helical copper tape shield. Only custom-built flexible Class I tinned copper MV-105 with a braided or concentric wire shield and TPU/CPE jacket approaches comparable flexing performance.
Can single-core (N)TMCGCW11Y be used on long-travel motorized cable reels?
Single-core (N)TMCGCW11Y is designed primarily for short festoons, switchgear jumpers, skid interconnects, and controlled trailing loops. For multi-phase motorized reeling drums on excavators or stacker-reclaimers, specify a unified three-core plus split-earth reeling cable such as (N)TSCGEWOEU.
What technical data is required to confirm an (N)TMCGCW11Y cross-reference?
Submit the system nominal and maximum voltage (U0/U/Um), phase cross-section, required copper screen area, routing method (fixed cabinet bend, trefoil tray, or festoon), termination kit model, ambient temperature range, and required test certificates.
Need a Documented (N)TMCGCW11Y Cross-Reference or Custom Build?
Share your existing cable marking, voltage class (3.6/6 kV to 18/30 kV), conductor cross-section, and termination constraints. TEBAOFLEX engineers will verify dimensional compatibility over insulation and jacket and issue a complete DIN VDE 0250-813 datasheet and quotation within 24 hours.
Request Technical Cross-Reference ReviewTechnical references & review record: Construction codes, compound designations, and test criteria referenced from DIN VDE 0250-813 (flexible medium-voltage mining and trailing cables), DIN VDE 0207-20/21 (3GI3 EPR and 11Y PUR compounds), IEC 60228 (Class 5 conductors), IEC 60502-2, and UL 1072 / ICEA S-93-639. Technical review updated October 2026 by TEBAOFLEX Engineering.
