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 Temperature Sensors    Download PDF    
Thermal Sensors
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PTC Thermistors
PTC thermistors act as thermal protection for electrical machines, and are well known particularly as motor-protectors.They are available with or without insulating sleeve and have flexible connecting leads. PTC thermistors have a non-linear resistance/temperature response, and at a specified temperature the resistance changes rapidly to a very high value.

Features:
– rapid response protection for electrical machines
– compact size for easy assembly into windings
– silvered copper leads


Applications Motor Protection and Electronics.

 > Technical Data
Nominal response temperature:
80° C to 180° C in steps of 10°, plus 145° and 155°
Max. allowable operating temp.
T max. 200° C
Max. allowable operating voltage at +25° C
Umax 25V (per bead)
Max. allowable power dissipation at +25° C
690 mW
Insulation strength (between leads and outer insulation) also for threaded sensor
2.5 kV
Conductors - silvered copper wire with teflon insulation
PTFE
Insulation stripping
approx 10 mm
Conductor cross-section
0.25 mm 2 for single, double and triple PTC’s

 

 
CANTHERM
(800) 561-7207 | sales@cantherm.com
Canadian Thermostats & Control Devices Ltd.