Title:
SAFETY SWITCH FOR THE SAFE DISCONNECTION OF AN ELECTRIC CONSUMER
Document Type and Number:
WIPO Patent Application WO2006099935
Kind Code:
A9
Abstract:
The invention relates to a safety switch for the safe disconnection of an electric consumer. Said switch comprises at least one input (38, 40) for connecting a signalling device (20). The switch is also equipped with an evaluation and control unit (82), in addition to a switching element (56, 58) that can be controlled by the evaluation and control unit (82) in order to interrupt a power supply path to the consumer. The evaluation and control unit (82) is configured to check function tests at defined times, in order to verify at least one switching function of the switching element or elements (56, 58). According to one aspect of the invention, the input or inputs (38, 40) for connecting the signalling device (20) is or are also configured as an input for supplying a supply voltage (42), which is required to operate the switching element or elements (56, 58).
Inventors:
NITSCHE THOMAS (DE)
Application Number:
PCT/EP2006/001935
Publication Date:
January 03, 2008
Filing Date:
March 03, 2006
Export Citation:
Assignee:
PILZ GMBH & CO KG (DE)
NITSCHE THOMAS (DE)
NITSCHE THOMAS (DE)
International Classes:
H01H47/00
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