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Winding wire

SHTherm® 210

  • Enamelled round cu.wire, thermo-resistant
  • Insulated with theic-mod. polyesterimide
  • Plus polyamide-imide overcoat
  • Class 200

SHTherm® 210 is a highly thermo-resistant enamelled copper wire of heat performance class H with a wide range of good and very good quality features. As it is a dual-coat wire its insulation film consists of 2 different coatings on top of one another. These ensure: a very good permanent thermal and overload resistance, excellent resistance to chemical attacks e.g. by alkalines, washing and cleaning agents, impregnating varnishes and resins, sealing compounds, thinners, solvents and refrigerants as well as their vapours, an excellent mechanical abrasion resistance and a very low coefficient of friction of the wire surface. This range of excellent features makes SHTherm® 210 an all-round wire meeting the requirements of all applications requiring above average resistance to chemical, thermal, mechanical and electrical loads which occur during processing or during operating conditions. High coating resistance to abrasion and a low coefficient of friction result in less stress and damage to the wire and maintain a higher and more constant dielectric insulating resistance of the insulation film. The consistent further developments carried out by our R&D team allow this excellent “all-round” wire to be optimised to take into account specific customer requirements (e.g. improved adhesion after ageing, workability, electrical characteristics).


E-Mobility, control gears, electric motors, electrical tools, generators, polar windings, pump drives, refrigerators, transformers


IEC / DIN EN 60317-13
NEMA MW 35-C / 73-C
UL approved

Delivery forms

Grade 1: 0.15 - 4.000 mm
Grade 2: 0.20 - 4.000 mm
(>  4.000 mm on request)

Technical data

Typical properties of enamelled round copper wire 0.500 mm, with insulation film grade 1

Outer diameter with varnish  Bare wire diameter  Elongation and adhesion  Scrape resistance  Pencil hardness of varnish  Elongation at break  Coefficient of friction 
Unit of measure Set value  Actual value 
mm  min. 0.524 - max. 0.544 as set value
mm  0.495-0.505 as set value
  mandrel diameter: 0.500 mm 1 x d /10 % pre-elongation
≥ 3.950 ≥ 7.500
  H 4H - 5H
≥ 28 ≥ 38
µ  / ≤ 0.140
Temperature index  Cut through temperature (pre-heated block)  Dielectric loss factor (bending point)  Heat shock at 220 °C (no cracks in varnish coat after winding)  Solderability 
Unit of measure Set value  Actual value 
°C  200 210
°C  320 ≥ 360
(°C) (tan δ)  / ≥ 185
  mandrel diameter: 1.120 mm 1 x d /10 % pre-elongation
  no no
Dielectric strength RT  High voltage discontinuities (testing voltage)  Electrical conductivity 
Unit of measure Set value  Actual value 
kV  ≥ 2.4 (twist) ≥ 3 (cylinder)
  ≤ 10 on 30 m ≤ 7 on 100 m
MS/m  58 - 59 ≥ 58.5
Pencil hardness (storage in standard solvent ½ h / 60 °C)  Pencil hardness (storage in alcohol ½ h / 60 °C)  Resistance to commercial impregnants^(1)  Resistance to commercial refrigerants^(1)  Resistance to dry transformer oils^(1)  Resistance to hydraulic oils^(1) 
Set value  Actual value 
min. H 3H - 5H
min. H 3H - 5H
/ yes
/ yes
/ yes
/ yes

(1) Due to the variety of individual applications we cannot make any generally binding commitments regarding the compatibility. We recommend testing compatibility with the materials being used.