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What factors affect the choice of a resistor/capacitor RC suppressor or a varistor suppressor?

1) The RC units are used with AC coils only. The varistor units are used with AC or DC coils
2) The RC units drop out time is 1.2 to 2 times normal compared to the varistor 1.1 to 1.5 times normal.
3) The RC unit limits transient voltage to 300% of the nominal voltage maximum compared to a varistor 200% of nominal voltage maximum.

CTA-ID : 2008463
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