Winding wire SHTherm® 220 Flat

  • Enamelled flat copper wire, thermoresistant
  • Insulated with polyamide-imide
  • Class 220

SHTherm® 220 Flat is a highly thermoresistant enamelled copper wire of heat performance class R with superior thermal, chemical and mechanical resistance. It is used for special applications requiring the following criteria:

  •  very high permanent thermal resistance and short-time thermal overload
  • very good resistance to aggressive mediums in liquid or gas form

SHTherm® 220 Flat is ideally suited for use in special safety-relevant and electrical life support equipment. Sophisticated process technology and process setting ensure easy mouldability, good elongation and constant insulation properties of these wires.

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Application

E-Mobility, hybrid constructions

Standards

IEC / DIN EN 60317-58
NEMA MW 84-C

Delivery forms

Grade 1: on request
Grade 2: on request

(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.

Technical data

Typical properties of enamelled flat copper wire 5.60 x 3.55 mm, with insulation film grade 2

Mechanical
Property Unit of measure Set value  Actual value (typ.) 
Width with varnish  mm  5.67 - 5.82 as set value
Bare wire width  mm  5.550-5.650 as set value
Thickness with varnish  mm  3.62 - 3.77 as set value
Bare wire thickness  mm  3.500-3.600 as set value
Varnish increase  μm  120 - 170 as set value
Adhesion (no cracks in film after winding)    mandrel diameter  
Bend over width    4 x width 3 x width
Bend over thickness    4 x thickness 3 x thickness
Elongation    15 % with cracks < 1 x width 32 % without cracks
Pencil hardness    H 4H - 5H
Elongation at break  %  ≥ 32 ≥ 38
Bare wire thickness  mm  3.500-3.600 as set value
Thickness with varnish  mm  3.62 - 3.77 as set value
Varnish increase  μm  120 - 170 as set value
Bend over thickness    4 x thickness 3 x thickness
Adhesion (no cracks in film after winding)    mandrel diameter  
Bend over width    4 x width 3 x width
Elongation    15 % with cracks < 1 x width 32 % without cracks
Pencil hardness    H 4H - 5H
Elongation at break  %  ≥ 32 ≥ 38
Bare wire width  mm  5.550-5.650 as set value
Width with varnish  mm  5.67 - 5.82 as set value

(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.
Thermal
Property Unit of measure Set value  Actual value (typ.) 
Temperature index TI  °C  220 220
Heat shock at 240 °C (no cracks in varnish coat after winding)    mandrel diameter 6 x thickness mandrel diameter 4 x thickness
Solderability    no no
Solderability    no no
Heat shock at 240 °C (no cracks in varnish coat after winding)    mandrel diameter 6 x thickness mandrel diameter 4 x thickness
Temperature index TI  °C  220 220

(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.
Electrical
Property Unit of measure Set value  Actual value (typ.) 
Dielectrical strength at RT  kV  ≥ 2.0 (ball pit) ≥ 3 (ball pit)
High voltage discontiniuties test voltage 2,5 kV    / ≤ 7 on 100 m
Electrical conductivity  MS/m  58 - 59 ≥ 58.5
Electrical conductivity  MS/m  58 - 59 ≥ 58.5
High voltage discontiniuties test voltage 2,5 kV    / ≤ 7 on 100 m
Dielectrical strength at RT  kV  ≥ 2.0 (ball pit) ≥ 3 (ball pit)

(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.
Chemical
Property Set value  Actual value (typ.) 
Pencil hardness (storage in standard solvent ½ h / 60 °C)  min. H 3H - 5H
Pencil hardness (storage in alcohol ½ h / 60 °C)  min. H 3H - 5H
Resistance to commercial impregnants^(1)  / yes
Resistance to commercial refrigerants^(1)  / yes
Resistance to commercial dry transformer oils^(1)  / yes
Resistance to commercial hydraulic oils^(1)  / yes
Resistance to commercial hydraulic oils^(1)  / yes
Resistance to commercial dry transformer oils^(1)  / yes
Resistance to commercial refrigerants^(1)  / yes
Resistance to commercial impregnants^(1)  / yes
Pencil hardness (storage in alcohol ½ h / 60 °C)  min. H 3H - 5H
Pencil hardness (storage in standard solvent ½ h / 60 °C)  min. H 3H - 5H

(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.