HOME   INTRO   HISTORY   PRODUCTS   NEWS

EWS/EWF
EDGE WOUND RESISTORS

Download
PDF File

SPECIFICATIONS

Model

Power Rating

Resistance Range [ohms]

Resistance
Tolerance

With Fan

In Free Air

EWS

EWF

EWS/EWF1200

600W

400W

0.02 – 0.25

0.26 – 3.3

+-5.0%(J)

+-10%(K)

EWS/EWF1700

1000W

600W

0.029 – 0.28

0.39 – 4.95

EWS/EWF2300

1.3kW

800W

0.039 – 0.50

0.51 – 6.6

EWS/EWF2800

1.6kW

1kW

0.051 – 0.63

0.64 – 8.2

EWS/EWF3400

2kW

1.2kW

0.061 – 0.75

0.76 – 9.9

EWS/EWF3900

2.3kW

1.4kW

0.071 – 0.88

0.89 – 11.5

EWS/EWF4400

2.6kW

1.6kW

0.081 – 1.00

1.10 – 13.2

RATED CURRENTS BY MODELS AND OHMIC VALUES

Resistance (ohms)

Rated
Current

D#

EWS/EWF
1200

EWS/EWF
1700

EWS/EWF
2300

EWS/EWF
2800

EWS/EWF
3400

EWS/EWF
3900

EWS/EWF
4400

0.02

0.029

0.039

0.051

0.061

0.071

0.081

140

69

0.023

0.035

0.047

0.059

0.071

0.082

0.094

130

65

0.027

0.041

0.055

0.069

0.083

0.097

0.111

120

65

0.033

0.049

0.066

0.082

0.099

0.115

0.132

110

72

0.04

0.06

0.08

0.1

0.12

0.14

0.16

100

72

0.044

0.066

0.088

0.110

0.132

0.155

0.177

95

72

0.049

0.074

0.098

0.123

0.148

0.172

0.197

90

72

0.055

0.083

0.110

0.138

0.166

0.193

0.221

85

71

0.062

0.093

0.125

0.156

0.187

0.218

0.25

80

67

0.071

0.106

0.142

0.177

0.213

0.248

0.284

75

65

0.081

0.122

0.163

0.204

0.244

0.285

0.326

70

69

0.094

0.142

0.189

0.236

0.284

0.331

0.378

65

65

0.111

0.166

0.222

0.277

0.333

0.388

0.444

60

67

0.132

0.198

0.264

0.330

0.396

0.462

0.528

55

71

0.16

0.24

0.32

0.4

0.48

0.56

0.64

50

71

0.197

0.296

0.395

0.493

0.592

0.691

0.790

45

67

0.25

0.375

0.5

0.625

0.75

0.875

1

40

67

0.326

0.489

0.653

0.816

0.979

1.142

1.306

35

67

0.444

0.666

0.888

1.111

1.333

1.555

1.777

30

65

0.64

0.96

1.28

1.6

1.92

2.24

2.56

25

61

1

1.5

2

2.5

3

3.5

4

20

55

% INCREASE IN RATED CURRENT (CR=current rating)

% ED

5%

10%

15%

40%

60%

Increased Rated Current

2.5 X CR

1.8 X CR

1.6 X CR

1.25 X CR

1.15 X CR

CHARACTERISTICS                                                                        Values in [ ] mean change in ohms after test

Temperature Range

-55C to 375C

Insulation Resistance

100Mohms min.

Dielectric Strength

AC 2000V/min.

DIMENSIONS

TYPE DIMENSIONS  (mm)
L1 L2 C
EWS/EWF400 240 205 18 to 23
EWS/EWF600 310 275
EWS/EWF800 380 345
EWS/EWF1000 450 415
EWS/EWF1200 520 485
EWS/EWF1400 590 555
EWS/EWF1600 660 625

SURFACE TEMPERATURE INCREASE VS. POWER LOAD

DERATING CURVES

     

ORDERING PROCEDURE

Copyright©, RARA Electronics Corporation
Tel:82-32-817-4325 Fax:82-32-817-4329

Rara electronics Sitemap Rara electronics main contents
Home
Intro
History
News
Email
Wirewound
Power Film
SMD
RF
Current Sensing
Precision
High Voltage
NGR, Load Bank, Motor Control
Inductors
Circuit Protection

Wire Wound Resistors


High Power Shunt Resistors


Current Sensing resistors


Metal Clad Resistors


Loadbanks


High Power Resistors


High Voltage Resistors


High Precision Resistors


Precision Power Resistors


Thick Film Resistors


Precision Thin Film Resistors


Rara Eletronics

rotary potentiometers


variable resistor potentiometer


rotary potentiometer manufacturers


rotary potentiometer switch


single turn potentiometer


control potentiometer


carbon potentiometers


ceramic composition resistors


ceramic composition resistor


ceramic power resistors


resistor ceramic


rotary dip switches

dip switch settings


3 position dip switch


dip switch manufacturer


dip swich


mini rotary switch


high power shunt resistors


loadbanks