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NSi Industries AlumStem Stem-Mount Photocontrol, 120/208-277V, 2000W Tungsten
The NSi Industries AlumStem is a stem-mount photocontrol built with a die-cast aluminum enclosure for durable outdoor performance. Designed for 1/2" conduit mount installation, this photocontrol operates on 120/208-277 VAC supply voltage and is rated for 2000W tungsten and 1800VA ballast loads. With a cadmium sulphide sensor cell that turns on at 1 to 5fc and turns off at 3 to 15fc, it delivers dependable dusk-to-dawn switching for outdoor lighting circuits, and it carries cULus listing for code-compliant commercial installations.
Key Features
- Mounting: 1/2" conduit stem mount with 6" leads for straightforward field wiring.
- Durable Construction: Aluminum die-cast enclosure resists corrosion and withstands outdoor exposure from -40 to +140 F.
- Supply Voltage: 120/208-277 VAC input accommodates common commercial and industrial branch circuits.
- Load Rating: Rated 2000W tungsten and 1800VA ballast for direct control of outdoor lighting fixtures.
- Sensor Type: Cadmium sulphide cell with turn-on sensitivity of 1 to 5fc and turn-off sensitivity of 3 to 15fc.
- Timing Range: 2-minute timing range prevents nuisance switching from passing headlights or brief light changes.
- Surge Protection: Metal oxide varistor (MOV) type construction with under 1 watt power consumption.
- Frequency Rating: Rated for 50-60 Hz supply frequency for broad electrical system compatibility.
Certifications & Compliance
- cULus Listed
Technical Specifications
- Mounting: 1/2 Conduit Mount
- Environmental Conditions: -40 to +140 F
- Supply Voltage: 120/208-277 VAC
- Standard: cULus
- Timing Range: 2 Minutes
- Sensitivity: Turn On Is 1 to 5fc - Turn Off is 3 to 15fc
- Power Consumption: Under 1 Watt
- Sensor Type: Cadmium Sulphide Cell
- Type: Metal Oxide Varistor
- Frequency Rating: 50-60 Hz
- Enclosure: Aluminum Diecast
- Application: Parking Lot-Building Perimeter-Outdoor Signage Lighting
Typical Applications
- Parking Lot and Building Perimeter Lighting Control
- Outdoor Signage Lighting
- Dusk-to-Dawn Area Lighting Circuits
- Commercial and Industrial Outdoor Electrical Installations
- Ballast and Tungsten Luminaire Switching
Why NSi Industries?
NSi Industries builds the AlumStem photocontrol with a rugged die-cast aluminum enclosure and cULus listing, giving contractors a dependable, code-compliant option for automatic outdoor lighting control. Its cadmium sulphide sensor, defined timing range, and MOV-based surge tolerance support consistent switching performance across the 120/208-277V range demanded by commercial and industrial lighting circuits.
Manufacturer Resources
Product Specs
- Mounting Method:
- 1/2 Conduit Mount
- Environmental Conditions:
- -40 to + 140 F
- Product Voltage:
- 120/208-277 VAC
- Standards:
- cULus
- Timing Range:
- 2 Minutes
- Sensitivity:
- Turn On Is 1 to 5fc - Turn Off is 3 to 15fc
- Product Wattage:
- Under 1 Watt
- Sensor Type:
- Cadmium Sulphide Cell
- Product Type:
- Metal Oxide Varistor
- Frequency Rating:
- 50-60 Hz
- Configuration:
- Aluminum Diecast
- Application:
- Parking Lot-Building Perimeter-Outdoor Signage Lighting
- Product Material:
- Aluminum Die-Cast
- Listing:
- cULus
- Department:
- Electrical
- Product Group:
- Wiring Devices