This NSi Industries 2000-2 switch and photocontrol accepts 208-277 VAC input and each of its three circuits can activate a 2,770 ballast for lighting control. The integral photocell turns on lighting when the ambient light level drops below a user-selectable light level of 1 to 5 foot candles (fc) and turns the lighting off when the level is at 3 to 15 fc. The single-pole single-throw (SPST) contacts are housed within impact-resistant dome. The base is ultrasonically welded for maximum strength and the sensor accepts 1/2" conduit and has 180-degree swivel capacity. This switch and photo sensor unit is Underwriter Laboratories (UL) Listed and Canadian Standards Association (CSA) certified for quality assurance and is suitable for controlling lighting.
Specifications
| Switch type | Photo sensor and switch, weatherproof |
| Input power supply | 120/277 VAC, 50/60 Hz, 1 watt power consumption |
| Output contacts | SPST contacts, 2,770 watt ballast capable, 4,620 watt load |
| On/off control | On at user-selectable 1 to 5 fc, Off at 3 to 15 fc |
| Enclosure | 1/2" conduit mount, indoor/outdoor use |
| Terminal wire size range | #16 AWG (American wire gauge) |
| Operating temperature range | -40 to +140 degrees F (-40 to +60 degrees C) |
| Standards met | UL Listed, CSA certified |
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.
