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Does an automatic molded case switch provide overcurrent protection?

What makes an automatic switch different from a circuit breaker?  

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Molded case automatic switches

No, an automatic molded case switch does not provide overcurrent protection and cannot be applied in place of an overcurrent protective device such as a circuit breaker or fused switch. However, it does differ from a non-automatic molded case switch in that it does have a trip point. This trip point is purely to protect itself, and does not offer any protection for the downstream load or wiring. The trip point varies for each individual switch.
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