Snap-action switch
AssigneeSchaltbau GmbH
InventorsGrete Hofmann, Denis Kemmer, Armin Birnkammer
Life of this patent
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Abstract
A two-conductor field device, comprising a measuring transducer for capturing a measurement variable, an electronic unit for processing the measurement data and a two-conductor interface for supplying power to the two-conductor field device and for communicating with a superordinate unit, characterized in that the two-conductor field device has a display unit for signaling a state of the two-conductor field device, which display unit can be visually read remotely.
Claims16
A snap-action switch comprising a housing, an actuation plunger with two switch positions with at least one contact bridge for electrically connecting at least one first contact pair in a switch position and with snap-on springs supporting themselves substantially symmetrically and in a pretensioned manner on an actuation element and the actuation plunger, the pitch lines of which can be shifted by the actuation element in such a way, that the actuation plunger can be snapped from a first switch position, in which the actuation plunger is substantially in the resting position, to a second switch position, in which the actuation plunger is substantially in the actuation position, wherein the snap-action switch also comprises a forced-opening assembly with which it is switching at least from the first to the second switch position is imposed on the actuation element when a forced-opening force is exceeded, wherein the at least one contact bridge on one end and on the other hand has at least two respective contact points for electrically parallel contacting of the first contact pair, wherein each of the contact points is designed in such a way as to entirely switch an electrical rated power of the snap-action switch.
Dependencies are inferred from the claim text.