| 摘要 |
A flux shifting type trip device, which is electrically activated under the control of a static trip unit to mechanically initiate tripping of a circuit breaker automatically in response to an abnormal current condition in a protected circuit, is equipped with a thermal responsive element operative to directly, mechanically activate the trip device and thereby initiate circuit breaker tripping automatically in response to an excessive ambient temperature condition within the circuit breaker enclosure.
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