Enamelled Rectangular Copper Wires are used in low and medium voltage electrical machines such as motors, generators and transformers. The cross section of these wires ranges from 3.0 to 75.0 square millimetre with an insulation Class ranging from 105 to 220 degrees Celsius.Rectangular Enamelled Copper WiresPoly Vinyl Acetal, Class 105, 130Polyester, Class 130 and 155Polyesterimide 180Dual Coated Polyester (imide) + Polyamide imide, Class 200Polyamide imide, Class 200Polyesterimide Bondable, Class 155 and 180And Other insulation Coatings according to customer specifications
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Product Range

1 2 3 4 5 6 7 8 9
SPECIFICATION
STANDARD		 IEC-60317-17
NEMA
MW-18C		 IEC-60317-18 IEC-60317-16 IEC-60317-28 IEC-60317-29/
NEMA
MW-36C		 IEC-60317-30
IEC-60317-47
NEMA
MW-20C		 IEC-60317-58
draft)
THERMAL CLASS 105 120 155 180 200 220/240 220 120 180
Chemical base of base coat Polyvinyl Acetal Polyvinyl Acetal Polyester Polyesterimide Polyesterimide Polyimide Polyamide-imide Polyvinyl Acetal Polyesterimide
Chemical base of Top coat Polyamide-imide Epoxy-Bond coat Epoxy-Bond coat
Range of Wire (Diameter) Cross section area up to 80 sp.mm, Thickness : from 1.3-8 mm, Width : from 2.0-16 mm
Insulation Range IEC Grade 1:0.060-0.110, IEC Grade 2:0.120-0.179;
NEMA Grade Heavy : Increase in thickness : 0.076-0.127, Grade Quadruple : increase in thickness : 0.127-0.178 mm		 In addition to base coat increase
in dimensions, additional bond coat
increase in thickness of
0.030-.0.050 mm
Standard colour Golden Yellow Golden Yellow Brown Brown Brown Light Brown Light Brown Golden Yellow Brown
TECHNICAL PROPERTIES AS PER
IEC-60317-0-2
Flexibility & Adherence
:Mandrel Bending on thickness
on width		 2-3 t & 3-4 W 2-3 t & 3-4 W 3-4 t & 4-6 W 3-4 t & 4-6 W 3-4 t & 4-6 W 3-4 t & 4-6 W 3-4 t & 4-6 W 2-3 t & 3-4 W 3-4 t & 4-6 W
:Adherence (no crack after
stretching %)		 15 15 15 15 15 10 15 15 15
Heat Shock No cracks after
bending on thickness/
Temperature °C		 2-3 t/155 2-3 t/155 6 t/175 6 t/200 6 t/200 6 t/260 6 t/240 2-3 t/155 6 t/200
Break down voltage at Room
temp. (minimum) Volts		 Grade 1 : > 1000, Grade 2: >2000
Resistance to hot transformer oil Excellent Excellent Not applicable Excellent Excellent Not applicable Not applicable Excellent Excellent
Heat Bonding temperature/Time Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable 110 C/48 h or 120 C/24 h
SPECIAL CHARACTERSISTICS
& APPLICATION		 High mechanical strength, strong
adhesion of enamel to copper
conductor, Excellent hydrolysis
& oil resistance		 Good thermal,
and
overall good
mechanical,
electrical and
chemical
properties		 High thermal,
and
overall good
mechanical,
electrical and
chemical
resistance		 High thermal,
electrical and
mechanical,
properties,
excellent heat
shock and
burnout		 Very high
thermal
properties		 Very high
thermal
properties		 Bondable coating
with excellent
mechanical
properties		 Bondable coating
with excellent
thermal
properties
Delivery Spools Please refer to  DELIVERY SPOOLS for Sizes & Respective Spool Types
Special Notes Oil filled
power &
distribution
transformers,
Inductance
coils, etc.		 Oil filled
large
transformers
Loco
transformers,
chokes &
Inductance
coils, etc.		 Large rotating
Machines
such as:
motors,DC
motors,High
Voltage motors,
etc.		 Large and special
electrical machines
such as:
generators, alternators,
Motors, HV motors,
Dry type transformers,
Inductor coils, etc.		 Special electrical
machine
and
magnet
coils for
aerospace
industry		 Large and
special
electrical
machines
such as:
generators,
Motors,HV
motors,
Dry type
transformers,
Inductor
coils,etc.		 Oil filled large transformers,
Loco transformers,chokes &
Inductance coils, particularly

with improved mechanical

strength(hoop stress) to

resist igh short circuit currents.

Engineering Data

Rectangular Wires

Cross Section area=wxt-0.8584 r² mm²

Where
W = Conductor Width in mm
t = Conductor Thickness in mm
And    r = Corner Radius in mm

Weight of Copper Conductor
Weight in kg/km = 6.982 x d²

Where
d = Conductor dia in mm
and Copper density = 8.890 g/cc

  • Conductor properties
  • Nominal cross-sectional areas

Packaging

Delivery Spools

DIMENSION OF DRUMS (All dimensions in mm)

Flange
Dia		 Barrel
Dia		 Traverse Flange
Thick		 Bore
Dia		 Catch hole Distance Slot/hole on barrel No.of iron tube Wt.
Kgs.
 450 300 200 18 38 120 15 5 50
 450 300 240 18 38 120 15 5 65
 500 300 240 18 38 120 15 5 110
 560 300 240 18 38 120 15 5 160
 650 400 240 20 38 120 15 6 200
 710 400 300 20 38 120 15 7 225
 710 400 300 20 38 120 15 7 200
 760 460 300 22 38 120 15 8 260
 760** 560 300 22 38 140 15 8 225
 810** 560 300 25 38 140 15 10 240
 860** 560 300 25 38 140 15 10 290
 910** 560 300 25 38 140 15 10 380

Note:  

  1. Catch hole dia for all the drums will be 16mm.
  2. **One additional hole of 18mm to be provided on flande at 290mm distance from centre.

Ordering Info

We need the following information from our valued clients to understand fully your requirement and deliver the right product :

  • Size : Width X Thickness
  • Type of Insulation and thermal class, e.g. Polyester imide, Class 180 or Dual coated Polyester + Polyamide imide Class 200 or Polyurethane solderable, Class 155, etc.
  • Grade of insulation (thickness), e.g. Grade 1 or 2 or 3, or Single, heavy or triple.
  • Specification reference : e.g. IEC 60317-28 or IEC 60317-13 or NEMA etc. We can also supply as per Customer drawn Specification
  • Packing : Spool size required (for specific Type please refer to Delivery Spools).
  • Net Quantity : Quantity of Wire required, e.g. 2500 kg.(Minimum quantity at a time per size shall be either 1000 KGs or as mutually agreed upon)

For any other special requirement, please address your query to our Marketing Department in Mumbai by e-mail pinankwires@gmail.com