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Spec Sheet  Install Manual

Intermatic EK4537 NightFox™ Select Grade Locking Type Electronic Photocontrol, 347/480 V

Designed to meet a 15-year service life, this photocontrol is LED-compatible and backed by an 8-year warranty.

Features:

  • Non-drift silicon light sensor with IR filter
  • DC relay with zero-crossing circuitry for extended life
  • All components meet 15-year life expectancy
  • Conformal coated PCB
  • Exceeds 10,000 ON/OFF switching cycles
  • Ideal for single or multifixture HID and LED installations (up to 1,650 W @ 277 VAC)
  • 510 J MOV surge protection

Applications:

  • Outdoor Lighting Control

Specifications:

Input Voltage Range(s) 347/480 VAC, 50/60 Hz Usage Environments Outdoor
Electronic Ballast 6 A, 347 VAC, 50 Hz, 6 A, 347 VAC, 60 Hz, 6 A, 480 VAC, 50 Hz, 6 A, 480 VAC, 60 Hz Photocontrol Style Locking type
Surge Protection Technology 685 J MOV Warranty Period 8-Year limited
Application Compatibilities HID, Incandescent, LED Activation Off 2.25 fc
Activation On 1.5 fc Category Locking Type Electronic Photocontrols Web
Cover Color White with Yellow Band Electronic Ballast Load Ratings Ranges 6 A, 347/480 VAC, 50/60 Hz
Fail Mode ON Housing Material Polypropylene
Magnetic Ballast (NO) 1800 VA Magnetic Ballast Range(s) 1800 VA
Photo Control Switch Type Relay Photocell Type Silicon Diode
Photocontrol Sensor Location Side Photocontrol Type Electronic
Sensor Time Delay Instant ON; 2 sec to 5 sec OFF Tungsten (NO) 1000 W
Tungsten Range(s) 1000 W Operating Temperature Max (°C) 70
Operating Temperature Max (°F) 158 Operating Temperature Min (°C) -40
Operating Temperature Min (°F) -40 Product Height (in) 2 3/4
Product Height (mm) 69.9 Unit Carton Height (in) 3.375
Unit Carton Length (in) 3.062 Unit Carton Weight (lb) 0.35
Unit Carton Width (in) 3.375

General
Model Number EK4537
Description NightFox™ Select Grade Locking Type Electronic Photocontrol, 347/480 V
UPC Code 078275148970
Brand Intermatic
Country of Origin (Intermatic) MEXICO
Warranty Period 8-Year limited
Usage Environments Outdoor
Photocontrol Type Electronic
Expected Lifetime (Years) 15
Expected Lifetime (Operations) 10000
Application Compatibilities LED; Incandescent; HID
Photocontrol Style Locking type
Photocontrol Sensor Location Side

Control Specifications
Sensor Time Delay Instant ON; 2 sec to 5 sec OFF
Photocell Type Silicon Diode
Photo Control Switch Type Relay
Fail Mode ON
Activation On 1.5 fc
Activation Off 2.25 fc

Dimensions
Product Height (in) 2 3/4
Product Height (mm) 69.9
Product Diameter (in) 3.375
Product Diameter (mm) 85.8

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