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industry.usa.siemens.com
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Definitions (299)
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control circuit
A control circuit which uses a maintained contact to energize or de-energize the control coil. This circuit will provide Low Voltage Release.
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control circuit
A circuit which carries the signals directing the performance of the controller. This circuit contains pilot devices such as push buttons, selector and limit switches, timers, pilot lights and magnetic coils of relays, starters and contactors.
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withstandability
The ability of electrical apparatus to withstand the effects of specified electrical fault current conditons without exceeding specified damage criteria.
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schematic diagram
See Elementary Diagram.
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trip free
A device which automatically trips (i.e.: overload relay) and cannot be manually defeated.
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accelerating time
See Time, Accelerating
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across the line starter
A device consisting of a contactor and overload relays to start-stop a motor from rest to normal speed and to protect motor from overload.
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action device
See Device, Output
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actuator
The cam, arm or similar mechanical piece used to operate the contacts in a device
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air
When applied to a device which interrupts an electric circuit, indicates that the interruption occurs in air.
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