| 摘要 |
An arc-quenching automatic switch which includes an impact-armature tripping device, comprised of an armature core and an armature rod, a set of deionization plates, a thermostatic element, and a secondary circuit-breaking device which switches off said automatic switch in response to an external event. This event can be remotely sensed and registered by a current or voltage signal corresponding to said event whereby said event may be pre-arranged to trigger the open-circuit. This additional circuit-breaking device is comprised of a operating device for a coupling rod which projects into the armature core of the impact-armature tripping device.
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