McPherson Controls | Voltage Regulator | SS440

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McPherson Controls | Voltage Regulator | SS440


  • Replacement for Newage SX440 
  • McPherson Controls Self Excited Automatic Voltage Regulator 
  • Not a genuine Newage 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: SS440.
Additional Info


Details and Specifications

  • Voltage regulation less than +/-1% 
  • Can be use in parallel operation 
  • Adjustable DIP, TRIM and DROOP function 
  • Under frequency roll Off protection 
  • Sensing voltage loss protection 
  • Under frequency LED indicator 
  • Soft start voltage ramping 

Product Specifications:

Sensing Input Voltage 190 to 264 Vac 1 phase 2 wire 

Frequency 50/60 Hz selectable 

Excitation Output Voltage Max. 90 Vdc @ power input 207 Vac 

Current Continuous 4A Intermittent 10A for 10 seconds 

Resistance Min. 15 ohms 

External Voltage Adjustment Max. +/-8% @ 1K ohm 1 watt potentiometer 
Voltage Regulation Less than +/-1% (with 4% engine governing) 
Build Up Voltage 5Vac residual volts at power input terminal 
Soft Start Ramp Time 2 seconds +/-10% 
Static Power Dissipation Max. 12 watts 
Quadrature Droop Input Burden 10 ohms 

Max. input 0.33A 

Max. sensitivity 0.07A for 5% droop (PF=0) 

Analogue Voltage Input Input resistance 1K ohm 

Max. input +/-5 Vdc 

Sensitivity 1V for 5% generator volts 

Under Frequency Protection
(Factory Presets) 
Set point 95% Hz 

Slope 170% down to 30 Hz 

Voltage Thermal Drift Less than 3% at temperature range -40 to +70 °C 


AVR Control Functions 
VOLT Voltage adjustment 
STAB Stability adjustment 
UFRO Setting under frequency protection knee point 
DROOP Droop adjustment 
TRIM Analogue input adjustment 
DIP U/V rate set 


Operating Temperature -40 to +70 °C 
Storage Temperature -40 to +85 °C 
Relative Humidity Max. 95% 
Vibration 3.3 Gs @ 100 to 2K Hz 


Physical Specifications 
Dimensions 150.0 (L) x 135.0 (W) x 48.0 (H) mm 
Weight 418 g +/-2% 

PRODUCT Related documents:

SS440 Manual

Additional Info
Weight2 lbs
Dimensions6.75 × 6.25 × 2.25 in


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