PTC is a specific resistance witch value increase greatly with temperature
(Positive Temperature Coefficient).
For ATS48 the recommended value of PTC 3x250 ohms at 25°C.
This input is incompatible with PT100 sensors
- Overheating or open circuit :
Trips if R> 2900 Ohms +/- 200 Ohms
Recover if R<1575 Ohms
- Short circuit
Trips if R< 17 Ohms
Recover if R> 24 Ohms
ATS48 does not make the difference between PTC in short circuit, PTC open, or
overtemperature of the motor, it trips always in "OTF" fault.
(Positive Temperature Coefficient).
For ATS48 the recommended value of PTC 3x250 ohms at 25°C.
This input is incompatible with PT100 sensors
- Overheating or open circuit :
Trips if R> 2900 Ohms +/- 200 Ohms
Recover if R<1575 Ohms
- Short circuit
Trips if R< 17 Ohms
Recover if R> 24 Ohms
ATS48 does not make the difference between PTC in short circuit, PTC open, or
overtemperature of the motor, it trips always in "OTF" fault.
Released for:Schneider Electric India
