International Electrotechnical Commission

ENoperator presence control, OPC 
control device that automatically interrupts the power, e.g. to a drive or an engine, when the operator's actuating force is removed

Note 1 to entry: Such devices can be, for example, continuous action controls ("hold-to-run" controls) or seat switches.

TC/SC:61JTerms     Info     Publications
Published in:IEC 60335-2-72, ed. 3.0 (2012-03) Terms     Info
Reference number:3.111

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