1) Lighting contactor:
I Chose mechanically held contactor :[ Contacts shall be rated [____?_] volts, [___?_] amperes, and [___?_] poles. Coils shall be rated [___?__] volts.][ Rate contactor as indicated.]
But I have problem for choosing the above Items. I have 120V/20A panel board with 3 Fluorescents and 2 HID lights need to be control on/off automatically when sunrise and sunset. Please help
2) Same above application: have 120V/20A panel board with 3 Fluorescents and 2 HID lights need to be control on/off automatically when sunrise and sunset
I don't know what options to select for Photo Cell Switch
hermetically sealed cadmium-sulfide or silicon diode type cell rated [__?___] volts ac, 60 Hz with[ single-throw contacts][ single pole double-throw (spdt) contacts for mechanically held contactors rated 1000 watts] designed to fail to the ON position. Switch shall turn on at or below 32 lux 3 footcandlesand off at 4 to 10 footcandles. A time delay shall prevent accidental switching from transient light sources.[ Provide a directional lens in front of the cell to prevent fixed light sources from creating a turnoff condition.]
Thanks for Your help.
I Chose mechanically held contactor :[ Contacts shall be rated [____?_] volts, [___?_] amperes, and [___?_] poles. Coils shall be rated [___?__] volts.][ Rate contactor as indicated.]
But I have problem for choosing the above Items. I have 120V/20A panel board with 3 Fluorescents and 2 HID lights need to be control on/off automatically when sunrise and sunset. Please help
2) Same above application: have 120V/20A panel board with 3 Fluorescents and 2 HID lights need to be control on/off automatically when sunrise and sunset
I don't know what options to select for Photo Cell Switch
hermetically sealed cadmium-sulfide or silicon diode type cell rated [__?___] volts ac, 60 Hz with[ single-throw contacts][ single pole double-throw (spdt) contacts for mechanically held contactors rated 1000 watts] designed to fail to the ON position. Switch shall turn on at or below 32 lux 3 footcandlesand off at 4 to 10 footcandles. A time delay shall prevent accidental switching from transient light sources.[ Provide a directional lens in front of the cell to prevent fixed light sources from creating a turnoff condition.]
Thanks for Your help.
