PTC Motor and Transformer Protection

Western Electronic Components Corporation's insulated PTC Thermistors are used for over temperature protection of various types of motors, transformers, and power machinery.

FEATURES

APPLICATIONS

  • Motor Protection
  • Transformer ProtectionPower
  • Machinery Protection
Single Element Physical Specification

wpe9.gif (2664 bytes)

Single Element Electrical Specification

Part Number

Switch Temp. (°C)

Resistance

Resistance

Resistance

Resistance

(OHMS)

(OHMS)

(OHMS)

(OHMS)

ST - 5 °C

ST + 5 °C

ST + 15 °C

ST + 23 °C
WMP1312
60
<570
>570
>4000
>6000
WMP1313
70
<570
>570
>4000
>6000
WMP1314
80
<570
>570
>4000
>6000
WMP1315
90
<550
>1330
>4000
>6000
WMP1316
100
<550
>1330
>4000
>6000
WMP1317
110
<550
>1330
>4000
>6000
WMP1318
120
<550
>1330
>4000
>6000
WMP1319
130
<550
>1330
>4000
>6000
WMP1320
140
<550
>1330
>4000
>6000
WMP1321
150
<550
>1330
>4000
>4000
WMP1322
160
<550
>1330
>4000
>4000
WMP1323
170
<570
>570
>4000
>4000
WMP1324
180
<570
>570
>4000
>4000

Three Phase Motor Protection

WECC's Three Element PTC Thermistor Over Temperature Protection Products is specifically designed for three phase motor protection.

 wpeA.gif (3294 bytes)

Part Number

Switch Temp. (°C)

Resistance

Resistance

Resistance

Resistance

(OHMS)

(OHMS)

(OHMS)

(OHMS)

ST - 5 °C

ST + 5 °C

ST + 15 °C

ST + 23 °C
WMP3512
60
<1710
>1710
>12000
>16000
WMP3513
70
<1710
>1710
>12000
>16000
WMP3514
80
<1710
>1710
>12000
>16000
WMP3515
90
<1650
>3990
>12000
>16000
WMP3516
100
<1650
>3990
>12000
>16000
WMP3517
110
<1650
>3990
>12000
>16000
WMP3518
120
<1650
>3990
>12000
>16000
WMP3519
130
<1650
>3990
>12000
>16000
WMP3520
140
<1650
>3990
>12000
>16000
WMP3521
150
<1650
>3990
>12000
>16000
WMP3522
160
<1650
>3990
>12000
>16000
WMP3523
170
<1710
>1710
>12000
>12000
WMP3524
180
<1710
>1710
>12000
>12000

 



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