Question
Download Solution PDFArcing contacts in a circuit breaker is usually made of:
This question was previously asked in
SSC JE EE Previous Year Paper 12 (Held On: 27 Jan 2018 Evening)
Answer (Detailed Solution Below)
Option 1 : Copper tungsten alloy
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RRB JE CBT I Full Test - 23
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Download Solution PDFIn a circuit breaker, the main contacts are usually made up of copper and conduct current in closed positions. Circuit breakers have low contact resistance and they are silver plated. The arcing contacts are solid, resistant to heat and are made up of copper tungsten alloy.
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