KOHLER Infrared AVRs Compatible

EA-KOH

Photo Coupler Automatic Voltage Regulator (Infrared)

EA-KOH self excited genset voltage regulator is a compatible replacement for Kohler infrared photo coupler C-255670 regulator.

Brochure

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  • All manufacturer names and numbers are used for reference purpose only and do not imply that any part is the product of these manufacturer.

Features

  • Voltage regulation < +/-1%
  • Drive infrared LED to control excitation
  • 50/60 Hz optional
  • Under frequency protection
  • Adjustable stability
  • External voltage trimmer applicable

Specifications

Sensing Input
Voltage
220 Vac 1 phase 2 wire
Frequency
50/60 Hz select by jumper
Power Input
Voltage
10 to 26 Vdc
Output
Current
20 mA
Volts Regulation < +/-1% (with 4% engine governing)
External Volts Adjustment +/-10% with 1 kΩ 1 watt trimmer
Unit Power Dissipation Max. 2 watts
Thermal Drift 0.05% per °C change in AVR ambient
Under Frequency Protection
(Factory Setting)
50 Hz system presets knee point at 45 Hz
60 Hz system presets knee point at 55 Hz
Environment
Operating Temperature
-40 to +65 °C
Storage Temperature
-40 to +80 °C
Relative Humidity
Max. 95%
Vibration
3.3Gs @ 100 to 2K Hz
AVR Control Functions
STAB
Stability adjustment
Dimension 127.2 (L) x 114.5 (W) x 39.0 (H) mm
Weight 109 g +/-2%

Diagram and Dimensions