Intermatic NIGHTFOX EK4136S Electronic Photocontrol 120-277V Stem Mount with Surge Protection
Professional automatic lighting control with advanced electronic switching technology
The Intermatic NIGHTFOX EK4136S Electronic Photocontrol delivers reliable automatic outdoor lighting control with 120-277V compatibility and professional-grade surge protection. This stem mount photocontrol features DC relay with zero-crossing circuitry, 255J MOV surge protection, and a non-drift silicon light sensor with IR filter for consistent performance in outdoor lighting applications up to 1,650W at 277 VAC.
Professional Features & Benefits
- 120-277V Wide Voltage Range: Compatible with both residential and commercial electrical systems for versatile installation flexibility.
 - 255J MOV Surge Protection: Built-in surge suppression protects connected lighting equipment from electrical transients and extends system life.
 - DC Relay with Zero-Crossing Circuitry: Advanced switching technology minimizes electrical stress and provides extended relay life for reliable long-term operation.
 - Non-Drift Silicon Light Sensor with IR Filter: Precision light detection maintains consistent switching points without calibration drift over time.
 - 1,650W Load Capacity at 277 VAC: Handles substantial lighting loads including single or multi-fixture HID and LED installations.
 - 15-Year Design Life: Engineered for long-term durability with over 10,000 ON/OFF switching cycles capability.
 - Fail ON Safety Mode: Ensures lighting remains operational in case of photocontrol failure for continuous safety and security.
 
Technical Specifications
- Applications: Outdoor Lighting Control
 - Country Of Origin: Mexico
 - Depth: 1.25 in
 - Input Voltage Rating Range S : 120-277 VAC, 50/60 Hz (Nominal Voltage)
 - Marketing Description: NIGHTFOX electronic photocontrols permanently install on outdoor electrical boxes or outdoor lighti
 - Product Color: Gray
 - Product Height: 2.25 in
 - Product Length: NA NA
 - Product Weight: NA lbs
 - Product Width: 1.313 in
 - Warranty Period: 8-Year limited
 
Installation & Operation
- Mount the unit in a suitable location with appropriate clearance and access for connections and service.
 - Connect utility and load conductors following applicable guidelines and the manufacturer's instructions.
 - Wire generator or power input according to the provided voltage/phase specifications and compatible capacity.
 - Configure any available load management or control features as supported by the provided specifications.
 - Test automatic transfer or operational functionality and verify proper performance before placing into service.
 - Complete final inspection and follow ongoing maintenance practices appropriate to the product category.
 
Professional Applications
- Commercial Building Exterior Lighting
 - Parking Lot and Area Lighting Control
 - Security and Perimeter Lighting Systems
 - Multi-Fixture HID and LED Installations
 - Industrial Facility Outdoor Lighting
 - Retail and Office Building Lighting Control
 - Municipal and Public Area Lighting
 
Why Choose Intermatic Quality?
Intermatic NIGHTFOX photocontrols combine proven electronic switching technology with robust construction for dependable outdoor lighting control. The conformal coated PCB, 8-year limited warranty, and 15-year design life demonstrate Intermatic's commitment to long-term reliability in demanding outdoor environments.
Manufacturer Resources
Product Specs
- Applications:
 - Outdoor Lighting Control
 - Country Of Origin:
 - Mexico
 - Depth:
 - 1.25 in
 - Input Voltage Rating Range S :
 - 120-277 VAC, 50/60 Hz (Nominal Voltage)
 - Marketing Description:
 - NIGHTFOX electronic photocontrols permanently install on outdoor electrical boxes or outdoor lighti
 - Product Color:
 - Gray
 - Product Height:
 - 2.25 in
 - Product Length:
 - NA NA
 - Product Weight:
 - NA lbs
 - Product Width:
 - 1.313 in
 - Warranty Period:
 - 8-Year limited