About this Manual
2 M-Max Series Adjustable Frequency Drive    MN04020003E—October 2013    www.eaton.com
Input Supply Voltages
The rated operating voltages stated in the following table are 
based on the standard values for networks with a grounded 
star point.
In ring networks (as found in Europe) the rated voltage at the 
transfer point of the power supply companies is the same as 
the value in the consumer networks (for example, 230V, 400V).
In star networks (as found in North America), the rated 
voltage at the transfer point of the utility companies is higher 
than in the consumer network. Example: 120V   115V, 
240V   230V, 480V   460V.
The wide tolerance range of M-Max frequency inverters 
takes into account a permissible voltage drop of an additional 
4% (U
LN 
–14%) in load networks, while, in the 400V 
category, it takes into account the North American line 
voltage of 480V +10% (60 Hz).
The permissible connection voltages for the M-Max series 
are listed in “Appendix A”.
The rated operational data of the input voltage is always 
based on the input frequencies 50/60 Hz (50 Hz –10% to 
60 Hz +10%).
Units
Every physical dimension included in this manual uses 
imperial units. For the purpose of the equipment’s UL 
certification, some of these dimensions are accompanied by 
their equivalents in metric or Système International d’Unites 
(SI) units.
Unit Conversion Examples
Designation US-American Value SI Value Conversion Value
US-American
Designation
Length 1 in  25.4 mm 0.0394 inch
Power 1 hp = 1.014 PS 0.7457 kW 1.341 horsepower
Torque 1 lbf in 0.113 Nm 8.851 pound-force inches
Temperature 1°F (T
F
) –17.222°C (T
C
)T
F
 = T
C
 x 9/5 + 32 Fahrenheit
Speed 1 RPM 1 min
–1
1 revolutions per minute
Weight 1 lb 0.4536 kg 2.205 pound