Door Secuirty Hardware/Devices..120v???

[Alwayslearningelec]

I have door that shows devices such as door position switch, card reader, transfer hinge etc. and they spec the usual Belden cables for the devices. Would a door like this need 120v power as well? Thanks.

 

[nhfire77]

I have door that shows devices such as door position switch, card reader, transfer hinge etc. and they spec the usual Belden cables for the devices. Would a door like this need 120v power as well? Thanks.

I dont know, what do the plans say?

If you are just looking at the controls plans, you may not see the 120V for a door controller motor.

If you have to ask, RFI.

 

[Alwayslearningelec]

I dont know, what do the plans say?

If you are just looking at the controls plans, you may not see the 120V for a door controller motor.

If you have to ask, RFI.

No, Looking at the sec. & power plans. It's only (2) doors. Door controller motor? My questions is: Could there be(or not) 120v power required. I did not see anything on the panel schedule or floorplans, notes, spec etc. I was just curious. I will RFI.

 

[infinity]

No, Looking at the sec. & power plans. It's only (2) doors. Door controller motor? My questions is: Could there be(or not) 120v power required. I did not see anything on the panel schedule or floorplans, notes, spec etc. I was just curious. I will RFI.

If the devices operate at 24 volts there will need to be a transformer or power supply somewhere. That power supply would likely require a 120 volt circuit to feed it.

 

[nhfire77]

If the devices operate at 24 volts there will need to be a transformer or power supply somewhere. That power supply would likely require a 120 volt circuit to feed it.

Right the head end (access control system). Will likely require a wall wart.

Is it a locally controlled access door, or is it parts of a larger system?

Door motor: think sliding door or a device that physically opens the door.

 

[Alwayslearningelec]

If the devices operate at 24 volts there will need to be a transformer or power supply somewhere. That power supply would likely require a 120 volt circuit to feed it.

Yes your right. There is a it room that this goes back to.

 

[Alwayslearningelec]

Right the head end (access control system). Will likely require a wall wart.

Is it a locally controlled access door, or is it parts of a larger system?

Door motor: think sliding door or a device that physically opens the door.

I think it is part of a larger system

 

[nhfire77]

I think it is part of a larger system

Not to complicate things but some larger systems have local power supplies. Some serve several doors, some just one. Those would need 120.

 

[Alwayslearningelec]

Not to complicate things but some larger systems have local power supplies. Some serve several doors, some just one. Those would need 120.

Yup, I'm aware of the power supply. I have to see where it is located etc. Thanks.