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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