Thermistor; Temperature Probe; Figure 2.7. Temperature Probe - ABB APC Series Installation, Operation And Maintenance Instructions

2.2.1.

Thermistor

Each fan is of DC type and is equipped with its own thermistor.
This thermistor will adapt the speed of the fan ("variofan" type) to the APC internal temperature.
This fan operates from a 30°C temperature and delivers a maximum airflow for a 50°C temperature.
2.2.2.

Temperature probe

Each APC cubicle is also equipped with a temperature probe in order to switch off the controller power
supply. In case of overtemperature around 60°C, the whole APC bank is automatically disconnected.
APC - Chapter 2. APC description

Figure 2.7. Temperature probe

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