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“
breifly explain about NC switch
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RELATED FAQS
Question
Answer
What is the difference between normally open and normally closed?
Resolution:
In a push button type switch (RX or LX), in which the contacts remain in one state unless actuated, the contacts can either be normally open (abbreviated "n.o." or "no") until closed by o...:
Why does the PS900 power supply not provide any DC output when AC power light is on?
Resolution:
The following items may cause the PS900 series power supply to have no DC output voltage. 1. If the DC voltage selection jumper is missing, the power supply will not provide any D...:
Will the 9100 series Benchmark III power an electric strike?
Resolution:
The Benchmark III control has a 24VDC, 2.5 amp power supply, and built in relay for controlling electric strikes or other accessories less than 2.5 amps current load. For a fail secure strike, r...:
What would cause the Von Duprin Chexit device to have one red flash when armed then nothing?
Resolution:
Chexit devices shipped prior to 8-24-2015 with solenoid driven. The GREEN wire is not shorted to the WHITE if no Access Control system is used.If Access Control system is used,...: