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What is the difference between normally close and normally open?
Wiki User
∙ 14y ago
normally close relay is closed initially and when a signal arrive to it it will open and dont let the current pass i9n opposit to normally open
Wiki User
∙ 14y ago
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What does nc and no mean in electrical terms?
nc: Normally Closed (contact is closed when power is not applied) no: Normally Open (contact is open when power is not applied) Applies to a relay ex...: when power is applied to a relay the no(Normally Open contact will close and allow current to flow between two terminals on relay).
Is the pressure switch high Normally open or normally close?
A pressure switch can be normally open or normally closed. It depends on how it was made. The NO/NC should be marked somewhere on the switch. A pressure switch can be normally open or normally closed. It depends on how it was made. The NO/NC should be marked somewhere on the switch.
Definition of coil in contactor?
The coil in a "Contactor" is essentially an electromagnetic coil that provides the driving force to close the contacts in a Contactor. When the "Coil" is energized by a lower control voltage usually from some type of controller such as a PLC, the Normally-Open contactor will close or in the oposite case, the Normally-Closed contactor will open.
A device that opens and closes a set of contacts when its coil is energize?
The device is a relay. A relay may have several sets of contacts, or sets of open and closed contacts that "change state" as the coil is energized.Changing state means that the normally open contact will close and the normally closed contact will open when the coil is energized.
What is a normally open contact?
A normally open contact is similar to a spring loaded switch, found in push buttons, and relays. For a push button, when you push the button, the button head has a piece of metal that makes contact between two external screws, where the wires are attached. For a relay, the concept is the same, but instead of pushing the button yourself, the relay would be turned on and off by an external electronic device.
What is the Difference between Alt plus f4 and Ctrl plus w?
Alt+F4 will normally close a program completely, while Ctrl+W will normally just close an open window.
What is the difference between a gutter and a sewer?
Gutters are normally open Sewer piping is closed
What is the difference between making up an open bed close bed or occupied bed?
No
How the auxiliary contacts of the reversing circuit works?
Normally open contacts close and normally closed contacts open.
Open loop and close loop system in injection moluld machine?
loop checking is perform before cable termination..the difference between a close loop and open loop is,tha close loop has a feedback while the open loop has not.
What is the basic difference between an open class system and a close class system?
The existence or nonexistence of social mobility
What is difference in close loop and an open-loop control?
no difference that's the difference
What does nc and no mean in electrical terms?
nc: Normally Closed (contact is closed when power is not applied) no: Normally Open (contact is open when power is not applied) Applies to a relay ex...: when power is applied to a relay the no(Normally Open contact will close and allow current to flow between two terminals on relay).
Is the pressure switch high Normally open or normally close?
A pressure switch can be normally open or normally closed. It depends on how it was made. The NO/NC should be marked somewhere on the switch. A pressure switch can be normally open or normally closed. It depends on how it was made. The NO/NC should be marked somewhere on the switch.
How do heating and cooling thermostats differ?
A cooling thermostat only will be normally open, closing on the rise of temperature. A Heat only thermostat will be a normally open, close on the fall of temperature.
What is the difference between a valve and actuator?
actuator is a mechanism that will responds to hydraulic,pneumatic and electrical signal ,it is used to control the valve that to be in open or close condition.
What is the difference between extrusion and forging?
Type your answer here... Extrusion is the open die punching process whether forging is close die punching process.
