Design and function
2015-09-07 / DIS 113_58300000171499_ara_en_c
Copyright by BSH Hausgeräte GmbH
Page 13 of 65
3.5
NTC
3.5.1
Structure
Graphic 4: Components of the NTC
1
Electrical connection
3
Semi-conductor resistor
2
Connecting cables
4
Housing
The NTC is an electrical component. The housing (4) encloses the semi-conductor
resistor (1) and the connecting cables (2). Semi-conductor resistor and housing
touch each other.
The electrical connection (1) of the NTC is designed as a plug or socket.
3.5.2
Function
NTC resistors are conductive materials with a negative temperature coefficient
(
N
egative
T
emperature
C
oefficient =
NTC
). As the temperature rises, the electrical
resistance of the NTC drops.
Graphic 5: The function of the NTC
The NTC converts the temperature to electrical resistance. The electronics
evaluate the resistance of the NTC and actuate a switching process if a specified
setpoint temperature is exceeded or drops below the minimum.
3.5.3
Positions of the NTCs
NTC B21
Temperature sensor- end
shield
optional
NTC B31 (a,b)
Temperature sensor-
compressor
Optional
NTC B33
Temperature sensor- re-
fresher
optional
Table 5:
NTC
