N E M A M W 3 5 , M W 3 6 , a n d M W 7 3
Class 200 Copper (Class 220 Aluminum) - Round, Square or Rectangular Conductors
Polyester/Polyamideimide coated magnet wire / winding wire.
Essex
®
GP/MR-200
®
Magnet Wire / Winding Wire
A P P L I C AT I O N
GP/MR-200
®
magnet wire is the standard of comparison for
magnet wire performance in virtually every severe and heavy
duty application. The combination of a modified polyester basecoat
and an improved polyamideimide topcoat results in an insulation
system with outstanding physical toughness, excellent dielectric
properties, and superior chemical resistance to most common
solvents and refrigerants.
Windability of GP/MR-200
®
magnet wire, verified by years of
experience on virtually every type of winder, has always been
excellent. Improvements in the topcoat have resulted in a prod-
uct that is even more superior with regard to high slot fill and
insertability.
GP/MR-200
®
magnet wire is recommended but not limited to the
following applications:
• Fractional and Integral HP Motors
• Hermetic Motors
• DC Motors
• Power Tools
• Automotive Alternators and Generators
• All Dry Type Transformers, Class 105 through 200
• Electronics, All Types of Coils, Class 105 Through 200
E N G I N E E R I N G H I G H L I G H T S
1. THERMAL CLASSIFICATION
GP/MR-200
®
magnet wire is classified as 200°C on copper conductor
and 220°C on aluminum. Many high temperature applications
have been limited to Class 180 due to total systems capability.
2. THERMOPLASTIC FLOW
GP/MR-200
®
copper magnet wire has excellent thermoplastic
flow (cut-thru) properties, with typical test values near 390°C.
3. WINDABILITY
The windability of GP/MR-200
®
magnet wire is excellent, and has
been recently improved in the areas of lubricity and scrape
resistance. This has been accomplished without sacrificing
other key thermal and chemical properties.
4. ELECTRICAL
GP/MR-200
®
magnet wire insulation exhibits high dielectric
strength retention under high moisture conditions. Hydrolysis
resistance is excellent.
5. CHEMICAL
As shown by property data presented elsewhere in this brochure,
resistance of GP/MR-200
®
magnet wire to both traditional refrig-
erants and replacement refrigerants (for CFC’s and HCFC’s) is
excellent. GP/MR-200
®
magnet wire has been the standard for
hermetic applications virtually since its inception.
6. TERMINATION
Insulation piercing, hot staking and flame welding processes
can all be used with copper GP/MR-200
®
magnet wire. Flame
welding processes are not recommended for aluminum
GP/MR-200
®
magnet wire. If the connection is to be soldered, the
insulation must be removed prior to soldering. It is recommend-
ed that mechanical stripping be used to remove GP/MR-200
®
magnet wire insulation.
7. NORMAL AVAILABILITY
• Round Copper Sizes:
14-39 AWG, Single Build
4-39 AWG, Heavy Build
• Round Aluminum Sizes:
14-27 AWG, Single Build
2-27 AWG, Heavy Build
• Square and Rectangular
Please consult Magnet Wire Marketing for additional
size (including metrics) and build information.
Temperature
°
C (1/
°
k)
18 AWG Heavy Build GP/MR-200
®
Thermal Aging
A
v
e
ra
g
e
L
if
e
,
H
o
u
rs
100
100
1,000
10,000
20,000
100,000
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
120
140
160
180
200
220 240 260 280
AL
CU
58875_GPMR-200.qxp:Datasheet Ideas 9/25/08 8:24 AM Page 1