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In contrast to a simple light switch, which is a single pole, single throw (SPST) switch, multiway switching uses switches with one or more additional contacts and two or more wires are run between the switches. When the load is controlled from only two points, single pole, double throw (SPDT) switches are used.
Symbol IEC 60617 SPST (1P1T) Single pole, single throw: One-way: Two-way: A simple on-off switch: The two terminals are either connected together or disconnected from each other. An example is a light switch. SPST-NO. Form A [4] Single pole, single throw, normally open A simple on-off switch.
The graphic symbols used for electrical components in circuit diagrams are covered by national and international standards, in particular: IEC 60617 (also known as BS 3939). There is also IEC 61131-3 – for ladder-logic symbols. JIC JIC (Joint Industrial Council) symbols as approved and adopted by the NMTBA (National Machine Tool Builders ...
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The following other wikis use this file: Usage on af.wikipedia.org Skakelaar; Usage on ast.wikipedia.org Interruptor; Usage on bn.wikipedia.org ইলেকট্রনিক প্রতীক
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Texas quarterback Quinn Ewers threw just two passes — a 54-yarder to Matthew Golden and a 23-yarder to DeAndre Moore Jr. — and Texas got out to a 7-3 lead less than seven minutes into the game.
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