Chapter 6 Relay contact protection
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Chapter 6 Relay contact protection
Electrical spark at the relay contact may affect the life of the relay, especially in an
inductive and capacitive load. In order to inhibit the spark and arc, user should use
an RC circuit to extend the life of the relay.
AC protection, use for inductive load
1. load
2. RC eliminate spark, using in 220VAC, R=100 ohm1W,C=0.1uF630V
3. Relay contact
