Which device is required to close a circuit breaker electrically via the shunt close?

The requirement for a device to close a circuit breaker electrically via the shunt close is fulfilled by an electrical closing push button. This device is specifically designed to send a command for the circuit breaker to close, triggering the shunt closing mechanism. When the push button is activated, it provides the necessary electrical signal to energize the shunt trip coil, effectively closing the circuit breaker.

The use of an electrical closing push button is critical in many applications as it allows for remote or manual control of the circuit breaker, facilitating the safe management of electrical systems. In contrast, other devices listed have different roles; for instance, a spring-charging motor is associated with the mechanism that charges the closing springs of the breaker, and a time-delay module is used for timing operations but does not execute the closing function directly. Similarly, an operations counter tracks the number of operations of the circuit breaker but has no impact on the closing mechanism itself.