Siemens offers new 230V, single- and 3-phase AC power modules for its Sinamics G120 drives
A new line of PM240-2 power modules is now available from Siemens, extending the use of the popular Sinamics G120 drives family. A significant change is the addition of 230V 3-phase line supply units. Featuring a smaller footprint and higher power density than the current PM240 generation, these new power modules can also be mounted side-by-side without derating.
A push-through version is also available with the heat sink extending out the rear of the cabinet. As a result, the new PM240-2 power modules will reduce the overall required cabinet size and, when used with the optional external mounting bracket, achieve an IP55 (NEMA 12) seal. Standard IP20 open-type versions are also available.
Quick-connect connectors on the motor and cable sides simplify the commissioning and maintenance in the field. Removable terminals for line supply, motor and braking resistors also mean faster replacement whenever service is required.
Overall frame size reduction is further provided, despite the significantly higher power density ranges; for example, Frame size A now has a maximum rating of 3 kW Low Overload (LO) vs. 1.5 kW LO in the PM240 version.
Among the unique, new features of the PM240-2 power modules is the variable speed fan, controllable to run based upon actual conditions vs. simple on/off operation, thereby reducing both the noise generated and the power required when in use.
The PM240-2 power modules are suitable for use with general-purpose and servo-drive styles. Options on these PM240-2 power modules include braking resistors, input reactors, output reactors and sine-wave filters.
For more information, please visit:
www.usa.siemens.com/sinamics-g120
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