What is the function of the anti-pump feature in a circuit breaker?

The function of the anti-pump feature in a circuit breaker is to ensure that the breaker opens and closes only once per operation. This mechanism is vital for maintaining safe and stable electrical operations, as it prevents the circuit breaker from unintentionally cycling on and off due to inadvertent signals or conditions that might cause a "pumping" effect.

When a user or automated system attempts to close the breaker, the anti-pump feature prevents any further closing actions until a deliberate reset is performed. This is especially important in protecting equipment and ensuring safe operation during fault conditions, as it mitigates the risk of creating a situation where the breaker rapidly opens and closes, which could potentially lead to excessive wear or damage to both the breaker and the connected electrical components.

The other options do not accurately reflect the anti-pump feature’s purpose. For example, while preventing continuous operation can be associated with various protective features, the primary function of the anti-pump is distinctly about restricting multiple operations from occurring due to a single action.