Step-Down Transformers – 347/480V to 277V

Button & Pencil Photocells

Step-down transformers are designed to utilize standard universal voltage (120-277V) electronic drivers and ballasts in applications where the main facility power is either 347V or 480V. These transformers can be used to operate multiple luminaires up to the rated maximum power, which is rated in volt-amps (VA).

▪  Switches light sources including LED, incandescent, HID and fluorescent.
▪  Heavy-duty, rain-proof, polycarbonate housing and lens.
▪  Photocell is ½” diameter CdS (cadmium-sulfide).
▪  Universal 120-277 AC voltage (50-60Hz) is standard.
▪  Preset 3 to 10 second time-delay prevents unintended switching due to momentary flashes of light.
▪  Power consumption: 2 watts.
▪  Switches light source on when ambient lighting levels decrease to 1-2 foot-candles.
▪  Switches light source off when ambient lighting levels increase to  3-8 foot-candles.

 

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