FLIR ThermaCAM EX300 User Manual page 48

7 – Introduction to thermographic inspections of electrical installations
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Figure 7.17 Overheating in a circuit breaker
The overheating of this circuit breaker is most probably caused by bad contact in the
near finger of the contactor. Thus, the far finger carries more current and gets hotter.
The component in the infrared image and in the photo is not the same, however, it is
similar).
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Publ. No. 1558439 Rev. a156 – ENGLISH (EN) – February 28, 2006