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 with an additional payment.

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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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