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This content was submitted directly to this Web site by the supplier.Article | July 30, 2014
Siemens: New 230V, single- and 3-phase AC power modules
A new line of PM240-2 power modules is now available from Siemens, extending the use of the Sinamics G120 drives family.
A significant change is the addition of 230V single- and three-phase line supply units featuring quick-connect pull-off terminals on the motor, line supply and braking resistor connections allowing the new PM240-2 to offer an even more simplified installation and maintenance. In addition, these new power modules can be mounted side-by-side without derating.
All versions of the new PM240-2 power modules are rated IP20. However, an optional push-through version is available allowing the heat sink to extend out the backside of the cabinet. The seal for the push-through heat-sink will maintain and enclosure rating of IP55 (NEMA 12). As a result, the new PM240-2 power modules will reduce the overall required cabinet size and cabinet cooling requirements.
Among the unique, new features of the PM240-2 power modules is the variable speed cooling 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 and output reactors.
For more information about this new line of power modules, click here.
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