What is a switch symbol?
IEC 60417-5010, the power on-off symbol (line within a circle), is used on buttons that switch a device between on and fully off states. A crescent moon, indicating sleep mode, is added by IEEE 1621 as a replacement for the standby symbol.
What is the symbol for a switch in a circuit diagram?
Switch and Contact Schematic Symbols
| Symbol Identification | Description of Symbol |
|---|---|
| SPDT Changeover Switch | Single-pole double-throw changeover switch used for changing the direction of current flow from one terminal to another |
| Pushbutton Switch (N.O) | Normally open contacts pushbutton switch – push to close, release to open |
What does SPST NO MEAN?
This switch is a SPST-NO, or single pole single throw normally open circuit. This means that current cannot flow through this switch until the actuator has been pressed.
Where are SPST switches used?
SPST (Single Pole Single Throw) The SPST is a basic ON/OFF switch, that is used to connect or break the connection between two terminals. The power supply for the owl circuit is given by this switch.
What is SPST relay?
The SPST Relay block models a single-pole single-throw relay. The block has three potential states: De-energized — The common contact, C, changes from being connected to disconnected from the normally open contact, S.
What is the symbol for a toggle switch?
Electronic Switch Symbols
| Name | Description |
|---|---|
| SPST Toggle Switch | Disconnects current when open |
| SPDT Toggle Switch | Selects between two connections |
| Pushbutton Switch (N.O) | Momentary switch – normally open |
| Pushbutton Switch (N.C) | Momentary switch – normally closed |
What does DPST mean?
double pole single throw
DPST switch stands for a double pole single throw electrical switch. A DPST switch controls two circuits at the same time; either both circuits are ON or both circuits are OFF.