User Manual – Rev BE    AMETEK Programmable Power 
MX Series  25 
Line Regulation:  0.1% for 10% input line change 
DC Off s e t  Vol t a g e :  < 20 mV 
Output Noise:  
(20 kHz to 1 MHz) 
<  2  VRMS  l o w V Ra n g e  
< 3 VRMS high V Range 
Output Coupling 
DC coupled 
Except on optional -HV o r  -XV Voltage range output, which is AC coupled. 
Power  (total power for all phases, either range, at full scale voltage, maximum ambient T = 35° C) 
AC Mo d e   60 KVA  90 KVA  135 KVA  180 KVA  225 KVA  270 KVA 
DC Mo d e   40 KVA  60  KW  90  KW  120 KW  150 KW  180 KW 
AC+DC Mod e  
The maximum power and current in the AC+DC mode are equal to that in the DC mode 
NOTE:   Current, maximum amps indicated per phase available between 50 and 100 % of voltage range. Maximum ambient temperate for full power 
operation at full-scale voltage is 35° C.  
Constant Power Mode: 
Operation at higher currents but constant power is possible from 80% of Voltage range (125% of max. current) declining to 100% of 
maximum current at 100 % of voltage range for short periods of time or at reduced ambient temperatures. (< 15 mins @ 30° C). See Figu r e  
2-1. (Requires firmware revision 0.27 or higher.) 
Not e:  Fo r  MX60-3Pi model, constant power mode is supported at max ambient temperature. 
AC Mo d e  
Standard Models 
per phase 
V Lo :  133 A  
V Hi :  66.7 A 
per phase 
V Lo :  200 A  
V Hi :  100 A 
per phase 
V Lo :  300 A  
V Hi :  150 A 
per phase 
V Lo :  400 A  
V Hi :  200 A 
per phase 
V Lo :  50 0  A  
V Hi :  250 A 
per phase 
V Lo :  60 0  A  
V Hi :  300 A 
AC Mo d e  
-333 Op t i on  
per phase 
V Lo :  120 A  
V Hi :  60 A 
per phase 
V Lo :  180.2 A  
V Hi :  90.1 A 
per phase 
V Lo :  270.3 A  
V Hi :  135 A 
per phase 
V Lo :  360.3 A  
V Hi :  181.2 A 
per phase 
V Lo :  450 A  
V Hi :  225 A 
per phase 
V Lo :  540.6 A  
V Hi :  270.3 A 
DC Mo d e  /  AC+ DC 
Mo d e  
Standard Models 
per phase 
V Lo :  66.7 A  
V Hi :  33.3 A 
per phase 
V Lo : 100 A  
V Hi :  50 A 
per phase 
V Lo :  150 A  
V Hi :  75 A 
per phase 
V Lo :  200 A  
V Hi :  100 A 
per phase 
V Lo :  250 A  
V Hi :  125 A 
per phase 
V Lo :  300 A  
V Hi :  150 A 
DC Mo d e  /  AC+ DC 
Mo d e  
-333 Op t i on  
per phase 
V Lo :  60.6 A  
V Hi :  30.2 A 
per phase 
V Lo :  90.9 A  
V Hi :  45.4 A 
per phase 
V Lo :  136.3 A  
V Hi :  68.1 A 
per phase 
V Lo :  181.8 A  
V Hi :  90.9 A 
per phase 
V Lo :  227.2 A  
V Hi :  113.6 A 
per phase 
V Lo :  272.7 A  
V Hi :  136.3 A 
NOTE:   Current derates linearly from 50% of voltage range to 20% of specified current at 5% of voltage range 
Current Limit mode  P r o g r a m m a b l e ,  CC o r  CV m o d e  
NOTE:   Maximum Peak Current shown. Value shown reflects absolute peak current protection level. This level may not be reached under all load 
conditions. Depending on load conditions, peak current may max out at lower levels due to amplifier output impedance. 
NOTE:   As of firmware revision 4.52, a repetitive peak current limit function is provided which will generate a fault and shut off the power supply if 
the peak current drawn by the load exceeds the maximum level for more than 30 seconds. During this time, the amplifier will limit the peak 
current at a level somewhat above the maximum level, but it is not allowable to run in this mode indefinitely. This should provide sufficient 
time to ride through any startup/ inrush load conditions. 
AC Mo d e  
Standard Models 
per phase 
V Lo :  600 A 
V Hi :  300 A 
per phase 
V Lo :  600 A 
V Hi :  300 A 
per phase 
V Lo :  900 A 
V Hi :  450 A 
per phase 
V Lo :  1200 A 
V Hi :  600 A 
per phase 
V Lo :  1500 A 
V Hi :  750 A 
per phase 
V Lo :  1800 A 
V Hi :  900 A 
AC Mo d e  
-333 Op t i on  
per phase 
V Lo : 540 A  
V Hi :  282 A 
per phase 
V Lo : 540 A  
V Hi :  270 A 
per phase 
V Lo :  810 A 
V Hi :  405 A 
per phase 
V Lo :  1080 A 
V Hi :  540 A 
per phase 
V Lo :  1350 A 
V Hi :  675 
per phase 
V Lo :  1621 A 
V Hi :  810 A 
Range: 
Standard:  16 Hz - 819.0 Hz  (for –HV option range, 45 Hz – 819.0 Hz) 
-LF option:  16 Hz - 500.0 Hz 
-HF option:  16 Hz – 905 Hz 
Resolution: 
0.01 Hz  from 16.00 to 81.91 Hz 
0.1 Hz   from 82.0 to 819.0 Hz 
Accuracy:  ± 0.01 %