ABB CA5-01 Auxiliary Contact Block

ABB CA5-01 Auxiliary Contact Block

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The voltage is then reduced to zero. Infineon’s IGBT modules are designed to achieve at least the basic insulation class 1 according to IEC 61140. For IGBT modules with an internal NTC, the functional insulation requirement is fulfilled between the grounded NTC terminals and the remaining control and power terminals connected and powered by the high voltage source. 

The appropriate insulation voltage depends on the maximum rated collector-emitter voltage of the IGBT. Most drive applications require an insulation voltage of 2.5kV for IGBT modules up to 1700V blocking voltage. For traction applications, the required insulation voltage is defined to be 4kV for the same IGBT blocking voltage of 1700V. Therefore it is important to focus on the application field during the choice of the IGBT module. 

ABB CA5-01 Technical drawing:

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