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3GI3 rubber insulation

4 Min Read
(N)GRDGÖU-J Nomenclature (VDE 0250 part 813): (N) = Nominal voltage prefix (0.6/1 kV implicit in designation) G = Gummiert (rubber-insulated) R = Rubber outer sheath D = Dynamisch (dynamic/flexing application) G = Gummiert inner sheath (intermediate layer) Ö = German standard designation (ö indicates European origin) U = Unarmoured (no metal sheath) J = Jacked (multi-sheath design: intermediate + outer) Full meaning: Rubber-insulated, rubber-sheathed, dynamic-rated, multi-sheath construction, unarmoured festoon cable VDE 0250 part 813 scope: Published by: VDE (Verband der Elektrotechnik, German standards body) Applies to: Flexible cables for crane installations (particularly festoon systems) Coverage: Voltage, temperature, mechanical properties, installation methods Festoon-specific requirements: - High bending flexibility (4×D minimum typical) - Fast rewind capability (240+ m/min rated speed) - Sustained torsion tolerance (±25°/1m continuous) - Extended temperature range (−50 to +80°C) - UV/ozone/moisture resistance (outdoor exposure) Alternate designations (similar cables): IEC 60811-1-1: International equivalent (less specific) DIN VDE 0298 part 3: German mechanical property standard DIN VDE 0482-265-2-1: German flame test standard EN 50265-2-1: European flame test equivalent GRDGÖU-J advantage: Combines all standards into single VDE designation Procurement simplified for European buyers
Technical Department
on10/06/2026

TROMMELFLEX (K) NSHTOEU：中等机械应力低压卷筒电缆的工程深度解析

TROMMELFLEX (K) NSHTOEU 是一种 0.6/1kV 柔性低压卷筒电缆，设计应用场景为 medium mechanical stresses，即中等机械应力下的 reeling operation。 与极重载矿山拖拽或超高速港口卷筒电缆相比，它更适合受控张力、受控速度、较规范卷盘路径和中等动态频率的移动供电系统。 从深度使用者角度看，这类电缆的真正价值不是“越重越好”，而是以合理重量、足够柔性、耐磨外护套、抗扭结构和标准化电气性能，解决大量中低压移动设备中最常见的卷绕、拖曳、磨耗、油污和维护问题。
11 Min Read
If there is one cable designation that every port electrical engineer recognises globally, it is NSHTÖU. The TROMMELFLEX® (K) (N)SHTOEU-J is the definitive embodiment of this designation — a DIN VDE 0250-814 standard drum reeling cable with EPR 3GI3 insulation, 5GM3 neoprene construction, and the broadest configuration range of any single cable family in the Klaus Faber portfolio: 24 configurations spanning 8 cross-sections from 1.5 mm² to 150 mm², with core counts from 4 to 30, ampacities from 23 A to 404 A, and weights from 372 kg/km to 8,706 kg/km
Technical Department
on03/04/2026

TROMMELFLEX® (K) (N)SHTOEU

If there is one cable designation that every port electrical engineer recognises globally, it is NSHTÖU. The TROMMELFLEX® (K) (N)SHTOEU-J is the definitive embodiment of this designation — a DIN VDE 0250-814 standard drum reeling cable with EPR 3GI3 insulation, 5GM3 neoprene construction, and the broadest configuration range of any single cable family in the Klaus Faber portfolio: 24 configurations spanning 8 cross-sections from 1.5 mm² to 150 mm², with core counts from 4 to 30, ampacities from 23 A to 404 A, and weights from 372 kg/km to 8,706 kg/km
13 Min Read
Engineered for Ship-to-Shore Cranes, RTG/RMG Gantry Cranes, Grab Unloaders, Tunnel Boring Machines, and Smart Port Electrification Systems Demanding Maximum Power and Data Density in the Smallest Possible Cable Diameter
Technical Department
on02/04/2026

RONDOFLEX® (C)-FC(N)GRDGCGOEU

RONDOFLEX® (C)-FC (N)GRDGCGOEU-J Technical Specifications (DIN VDE 0250-814) Parameter Specification Standard DIN VDE 0250-814 (with ref. to). Feichun equivalent: PROTOLON® (FL) FEST-PWR Series. Voltage Rating (U₀/U) 0.6/1 kV. Max operating: 1.2 kV. Test voltage: 5 kV. Peak voltage: 2,400 V. VFD Umax: 690 V. Conductor Material FC-FLX™ Tongling bare copper, 99.97%+. Class 5 = flexible. PE conductor: Class FS = exceptionally fine stranded, tinned. Insulation Rubber 3GI3 (EPR with semi-conductive stress-control layer). 90°C continuous / 250°C short-circuit. Inner Sheath Rubber GM1b. High-grade flexible rubber for intermediate protection. Screen Tinned copper braid, 80% optical coverage. EMC/EMI shielding for VFD output containment. Outer Sheath Gummi (Rubber) 5GM3. Black. Flame-retardant (IEC 60332-1-2). UV-resistant. Oil-resistant (EN 60811-404). Ozone-resistant. Temperature Range Fixed: −50°C to +80°C. Moving: −35°C to +80°C. Bending Radius Fixed: 4 × OD. Moving: 5 × OD. Tensile Strength 15 N/mm² × total Cu cross-section. Operating Speed (Festoon) 240 m/min. Bending Direction Unidirectional — optimised for festoon trolley systems. Core Identification Green-yellow + numbers. REACH Note Contains MCCP (Medium-chain chlorinated paraffins) > 0.1% per REACH candidate list.
11 Min Read
The (N)SSHÖU designation represents a family of European rubber-insulated cables designed and manufactured to German VDE standards, specifically VDE 0250-812. The designation encodes the cable's fundamental characteristics: flexible power transmission cable suitable for mining and industrial applications. The baseline European design is optimized for 0.6/1kV operation, representing the standard voltage rating for TN earthing systems prevalent throughout Europe and North America. (N)SSHÖU代表一系列欧洲橡胶绝缘电缆，按照德国VDE标准（特别是VDE 0250-812）设计和制造。该名称编码了电缆的基本特征：适合采矿和工业应用的灵活电力传输电缆。欧洲基线设计针对0.6/1kV运行进行了优化，代表了欧洲和北美普遍存在的TN接地系统的标准电压额定值。
Technical Department
on05/03/2026

Insulation Thickness Differences: How AS/NZS 1.1/1.1kV Modifies (N)SSHÖU Cable Structure

The (N)SSHÖU designation represents a family of European rubber-insulated cables designed and manufactured to German VDE standards, specifically VDE 0250-812. The designation encodes the cable’s fundamental characteristics: flexible power transmission cable suitable for mining and industrial applications. The baseline European design is optimized for 0.6/1kV operation, representing the standard voltage rating for TN earthing systems prevalent throughout Europe and North America. (N)SSHÖU代表一系列欧洲橡胶绝缘电缆，按照德国VDE标准（特别是VDE 0250-812）设计和制造。该名称编码了电缆的基本特征：适合采矿和工业应用的灵活电力传输电缆。欧洲基线设计针对0.6/1kV运行进行了优化，代表了欧洲和北美普遍存在的TN接地系统的标准电压额定值。
24 Min Read
Complete Technical Analysis: Why Australian Port Terminals, Heavy Industrial Sites, and STS/RTG Crane Operations Require NSHTÖU Cables Rated at 1.1/1.1kV (Uo=U) Instead of Standard European 0.6/1kV Specifications. IT Earthing System Philosophy for Continuous Port Operations, Earth Fault Voltage Stress Analysis, VFD Drive Compatibility, Symmetrical Earth Conductor Configuration, Heavy-Duty PCP Sheath Materials, Tinned Copper Conductor Specifications, DIN VDE 0295 Class 5 Strand Flexibility, 5GM5 Rubber Compound Durability, AS/NZS Regulatory Compliance, Real-World Port Machinery Applications, Procurement Verification Protocols.
Technical Department
on05/03/2026

NSHTÖU 1.1/1.1kV vs 0.6/1kV: Why Australian Port Cranes Require Uo=U Voltage Rating

Complete Technical Analysis: Why Australian Port Terminals, Heavy Industrial Sites, and STS/RTG Crane Operations Require NSHTÖU Cables Rated at 1.1/1.1kV (Uo=U) Instead of Standard European 0.6/1kV Specifications. IT Earthing System Philosophy for Continuous Port Operations, Earth Fault Voltage Stress Analysis, VFD Drive Compatibility, Symmetrical Earth Conductor Configuration, Heavy-Duty PCP Sheath Materials, Tinned Copper Conductor Specifications, DIN VDE 0295 Class 5 Strand Flexibility, 5GM5 Rubber Compound Durability, AS/NZS Regulatory Compliance, Real-World Port Machinery Applications, Procurement Verification Protocols.
6 Min Read
(N)TSCGEWÖU cable designation follows VDE naming conventions, where each letter represents specific cable characteristics. These medium-voltage cables are specifically engineered for power distribution to heavy-duty equipment in mining and industrial applications, available in voltage ratings of 3.6/6kV, 6/10kV, 8.7/15kV, and 12/20kV. The cable features tinned copper conductors (Class 5 according to DIN VDE 0295), rubber insulation (3GI3 compound per DIN VDE 0207 Part 20), and a heavy-duty elastomer outer sheath (5GM5 compound per DIN VDE 0207 Part 21).
Technical Department
on26/01/2026

Cold Impact Test: How (N)TSCGEWÖU Cables Are Certified as “Cold Resistant” at -40°C Under VDE Guidelines

(N)TSCGEWÖU cable designation follows VDE naming conventions, where each letter represents specific cable characteristics. These medium-voltage cables are specifically engineered for power distribution to heavy-duty equipment in mining and industrial applications, available in voltage ratings of 3.6/6kV, 6/10kV, 8.7/15kV, and 12/20kV. The cable features tinned copper conductors (Class 5 according to DIN VDE 0295), rubber insulation (3GI3 compound per DIN VDE 0207 Part 20), and a heavy-duty elastomer outer sheath (5GM5 compound per DIN VDE 0207 Part 21).
7 Min Read
NTSCGEWÖU and NTMCGEWÖU cables represent critical technical solutions for powering mobile machinery in mining, heavy industry, and material handling environments. Both cable types are manufactured according to the German DIN VDE 0250 standard, which is globally recognized as the definitive benchmark for tough rubber-sheathed flexible cables designed for cranes and material handling equipment. The fundamental distinction lies in their sheath construction: the "S" in NTSCGEWÖU indicates a double rubber sheath (Schwer = heavy-duty) providing enhanced mechanical protection for reeling applications, while "M" in NTMCGEWÖU denotes a single sheath with single-core design optimized for short-length medium voltage connections. According to industry specifications, Germany remains the only country to have issued special design regulations for flexible electrical cables covering cranes and material handling equipment, making DIN VDE 0250 the ultimate international standard for these demanding applications.
Technical Department
on16/01/2026

كيف تختار بين NTSCGEWÖU و NTMCGEWÖU للآلات المتحركة؟

NTSCGEWÖU and NTMCGEWÖU cables represent critical technical solutions for powering mobile machinery in mining, heavy industry, and material handling environments. Both cable types are manufactured according to the German DIN VDE 0250 standard, which is globally recognized as the definitive benchmark for tough rubber-sheathed flexible cables designed for cranes and material handling equipment. The fundamental distinction lies in their sheath construction: the “S” in NTSCGEWÖU indicates a double rubber sheath (Schwer = heavy-duty) providing enhanced mechanical protection for reeling applications, while “M” in NTMCGEWÖU denotes a single sheath with single-core design optimized for short-length medium voltage connections. According to industry specifications, Germany remains the only country to have issued special design regulations for flexible electrical cables covering cranes and material handling equipment, making DIN VDE 0250 the ultimate international standard for these demanding applications.