McPherson Controls | Voltage Regulator | SS341

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McPherson Controls | Voltage Regulator | SS341


  • Replacement for Newage MX341 
  • McPherson Controls Self Excited Automatic Voltage Regulator 
  • Permanent Magnet Generator (PMG) AVR 
  • 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: SS341
Additional Info


Details and Specifications

  • Voltage regulation less than +/-1% 
  • 3 phase PMG power input 
  • For use in parallel operation 
  • Adjustable EXC TRIP, DIP, TRIM and DROOP functions 
  • Soft start voltage ramping 
  • Under frequency roll off protection 
  • UFRO and over excitation LED indicators 

Product Specifications:

Sensing Input Voltage 190 to 264 Vac 1 phase 2 wire 

Frequency 50/60 Hz selectable 

Power Input (PMG) Voltage 170 to 220 Vac 3 phase 3 wire 

Current 3A / phase 

Frequency 100 to 120 Hz nominal 

Excitation Output Voltage Max. 120 Vdc @ power input 220 Vac 

Current Continuous 2.7A Intermittent 6A for 10 seconds 

Resistance Min. 15 ohms 

External Voltage Adjustment Max. +/-10% @ 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 
Analogue Voltage Input Input Resistance 1K ohm 

Max. Input +/-5 Vdc 

Sensitivity 1V for 5% generator volt 

Quadrature Droop Input Burden 10 ohms 

Max. Input 0.33A 

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

Over Voltage Detector Input Set Point 300V 

Time Delay 1 second (fixed) 

CB Trip Coil Volts 10 to 30 Vdc / 0.5 Amp 

CB trip coil resistance 20 to 60 ohms 

Current Limit Input Burden 10 ohms 

Sensitivity Range 0.5 to 1A 

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

Slope 170% down to 30 Hz 

Over Excitation Protection Set Point 90 Vdc 

Time Delay 10 seconds (fixed) 

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 To set the Droop to 5% at PF=0 
TRIM To optimize analogue input sensitivity 
EXC TRIP Over excitation trip level set 
DIP Hz related voltage DIP 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 394 g +/-2% 

PRODUCT Related documents:

SS341 Manual

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


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