POWER RESISTOR
Type EW
90W to 1500W
Edgewound, Fixed Vitreous Enamel or Silicone Coated
FEATURES:
END USE:
Rapid Cooling Motor Starting
Low Resistance Braking
High Current Capacity
CONSTRUCTION:
Crimped ribbon resistance wire is edgewound and locked to the ceramic core with Silicone or Vitreous Enamel Coating. The resistance wire is spot welded to the terminal bands.
ELECTRICAL:
Tolerance: ± 5%, 10% (resistance values < 1 ohm 10% only)
Power Rating: Based on 25 ° C free air rating
Derating: Vitreous - Derate linearly from 100% @ + 25 ° to 0% @ + 400 °
 Silicone - Derate linearly from 100% @ + 25 ° to 0% @ + 275 °
Overload: 10 times rated wattage for 5 seconds.
Max. Amps: To calculate use formula
Temperature Coefficient: ± 400PPM/ ° C
Dielectric Withstanding Voltage: 1000 VAC measured from terminal to mounting bracket.
RESISTOR HARDWARE:
Can be ordered separately

Type Wattage
(Vitreous)*		 Core Length Core O.D.
(Inches)		 Min. Ohms Max. Ohms
EW90 90 4.0 0.50 0.021 12
EW100 100 3.5 0.75 0.021 11
EW110 110 5.0 0.75 0.029 16
EW135 135 6.0 0.75 0.028 21
EW150 150 5.0 1.06 0.043 27
EW160 160 6.0 0.75 0.038 26
EW180 180 6.5 0.75 0.031 29
EW190 190 6.0 1.06 0.056 35
EW215 215 7.0 1.06 0.068 43
EW220 220 6.5 1.125 0.063 39
EW270 270 5.0 1.50 0.065 41
EW300 300 8.5 1.125 0.100 45
EW375 375 10.5 1.125 .0130 80
EW500 500 10.5 1.625 0.190 117
EW750 750 12.0 2.50 0.310 198
EW1000 1000 15.0 2.50 0.410 258
EW1500 1500 20.0 2.50 0.560 358
Consult factory for sizes not shown.
* Wattage for Silicone 30% less than shown
ORDERING INFORMATION
For silicone add letter "S". For Vitreous add "V"
Example: 100W 10 ohm 5% Silicone coat
EW100S
10R0
J
Type
Resistance
Tolerance
4 digit. <100 use R for decimal. >100 4th digit is multiplier
J = 5%
K = 10%
TO ORDER PRODUCT
E mail: microohm@vividnet.com
Call Toll Free: 1-800-845-5167

home page product guide R
axial		 FP
flat oval		 TL
tubular lug 		HS chassis mount CW bathtub axial SU bathtub printed circuit PI
radial 		RX
vitreous axial		 CP
bare axial		 RX20 vitreous tubular