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  • NSI Industries 5737TM Photo-Timer, 1800 VA Ballast, SPST Switch, 1000 Watt Power, 105-305 VAC Voltage
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by NSI

NSI Industries 5737TM Photo-Timer, 1800 VA Ballast, SPST Switch, 1000 Watt Power, 105-305 VAC Voltage

List Price: $110.25
Price: $105.00 & FREE Shipping
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Usually ships within 1 to 3 weeks.
Ships from and sold by HomePlumbing.
2 new from $69.52

Specifications for this item
Brand Name NSI
EAN 0786261620095
Number of Items 1
Operating Frequency 60  Hz
Output Power 1000  Watts
Part Number 5737TM
Size Name 1800VA
Style Name SPST
Temperature Range -40/158  Degrees Fahrenheit
UNSPSC Code 32101519
UPC 786261620095
Voltage 105  Volts

This NSi Industries 5737TM photocontrol accepts 105-305 VAC input, has a 1,... Read full product description

Product Features

  • Silicon photocell for on/off control
  • User-selectable timed Off cycle for energy savings
  • Instant On cycle, delay of three to five seconds for Off cycle
  • 105-305 VAC input voltage, 1,800 VA ballast, 1,000 W output
  • Polypropylene housing, UV stabilized for durability

Product Details

  • Shipping Information: View shipping rates and policies
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • Item model number: 5737TM
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Product Description

This NSi Industries 5737TM photocontrol accepts 105-305 VAC input, has a 1,800 VA ballast capability, and can power a 1,000 watt lamp for applications such as sign and billboard lighting. The silicon photocell turns on lighting when the ambient light level drops below five foot candles (fc) and works with screw-base compact fluorescent (CFL) and LED bulbs. User-selectable Off time during darkness provides energy savings. The photocell turns lighting off when the level exceeds five foot candles. The polypropylene photocell housing is UV stabilized and the clear acrylic window is UV-resistant. This photocontrol unit is suitable for controlling lighting.


Photocell typeSilicon photo sensor and switch, three-prong mount, timed Off cycle
Input power supply105-305 VAC, 50/60 Hz
Output1,000 watts
On/off control5 fc ambient light, instant On, 3-5 seconds Off delay, timed Off
EnclosurePolypropylene, UV stabilized
Mount styleThree-prong mount
Operating temperature range-40 to +158 degrees F (-40 to +70 degrees C)

Automatic switches are used to turn on or off electrical devices and are activated by time, light, and motion. Time activated switches (also known as timers) operate at preset time intervals during a daily or weekly period and can be either mechanical or electronic. Mechanical timers feature a dial with multiple pins to set the on/off time intervals. Electronic timers feature an LCD display and pushbuttons to set the time intervals. Light activated switches (also known as optical or photo) operate when ambient light levels reach preset values, generally measured in foot candles. Motion-activated switches (also known as motion sensors) operate when an electronic field of a preset range is interrupted. These switches can include energy saving logic that uses combinations of time, light, and motion to operate and can include one or more device outlets or circuit contacts. Automatic switches are used to control indoor lights, outdoor lights, appliances, and small equipment motors.

NSi Industries manufactures electrical components and sensors, lighting products, and energy management products. The company, founded in 1975, is headquartered in Huntersville, NC.

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