The correct answer is: c) may be used to protect internal circuits of equipment Article 240 provides the general requirements for overcurrent protection and overcurrent protective devices rated 1,000V ...

In the first part of this series, featured in the February 2011 issue, we considered the selection of the protective devices of a low-voltage induction motor supplied from a motor control center (MCC) ...

The usual way of preventing a small motor from drawing too much current is to install overcurrent protection in the form of a circuit breaker or some other kind of limiter. But installations that ...