McPherson Controls | Voltage Regulator | EA-230

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McPherson Controls | Voltage Regulator | EA-230


  • Replacement for Leroy Somer EA230 
  • McPherson Controls Self Excited Automatic Voltage Regulator 
  • Not a genuine Leroy Somer product 

Available on backorder. Usually ships in 3 to 5 business days.

can be export

Product can be export to the Caribbean, Latin America and other parts of the world.

Chat with one of our customer service representatives or call us at +1.954.657.7777 to access the list of recommended international carriers (forwarders) for shipping from USA to your country. (Shipping within the continental USA is free for orders over US$200).

SKU: EA-230.
Additional Info


Details and Specifications

  • Voltage regulation less than +/-1% 
  • Economical compact design 
  • For use in 50/60 Hz brushless generators 
  • EMI suppression 
  • Under frequency protection 
  • Over excitation current shutdown 

Product Specifications:

Sensing Input Voltage 90 to 140 Vac @ 120 Vac 1 phase 2 wire 

Frequency 50/60 Hz 

Excitation Output Voltage Max. 100 Vdc @ power input 120 Vac 

Current Continuous 3.5A Intermittent 5A for 10 seconds 

Resistance Min. 15 ohms 

External Voltage Adjustment Max. +/-5% @ 1K ohm 0.5 watt potentiometer 
Voltage Regulation Less than +/-1% (with 4% engine governing) 
Build Up Voltage 6 Vac residual volts at power input terminal 
EMI Suppression Internal electromagnetic interference filtering 
Static Power Dissipation Max. 6 watts 
Under Frequency Protection
(Factory Presets) 
Adjustable range 45/55 Hz 
Voltage Thermal Drift Less than 3% at temperature range -40 to +70 °C 


AVR Control Functions 
VOLT Voltage adjustment 
STAB Stability adjustment 
U/F Setting under frequency protection knee point 


Operating Temperature -40 to +60 °C 
Storage Temperature -40 to +85 °C 
Relative Humidity Max. 95% 
  1. Gs @ 5 to 30 Hz 

5.0 Gs @ 30 to 500 Hz 


Physical Specifications 
Dimensions 140.0 (L) x 81.0 (W) x 46.0 (H) mm 
Weight 310 g +/-2% 
Shock Withstands up to 20G in each X, Y, Z axes 

PRODUCT Related documents:

EA-230 Manual

EA-230_ADVR-250 Comparison Table

Additional Info
Weight1 lbs
Dimensions6.5 × 3.75 × 3.25 in


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