Passive Components


Motor run capacitors

27 April 2011 Passive Components

TDK-EPC has introduced the EPCOS MotorCap DM series of compact motor run capacitors. The space-saving version is implemented in a new housing technology in which the capacitor windings are directly moulded in plastic. This allows a significant reduction in capacitor dimensions: they are now between 24 x 43 mm and 29 x 43 mm (diameter x length). This corresponds to a volume reduction of up to 44% compared with conventional capacitors. In addition, the parts of the MotorCap DM series are distinguished by their hermetically sealed housing.

The new capacitors are designed for 250 V a.c. with capacitances of 10 to 15 μF and for 450 V a.c. with capacitances of 1,2 to 6 μF. Their operating life is specified as 10 000 hours over the entire temperature range from -25°C to +85°C. All types of the MotorCap DM series are available in safety classes P0 and P2 and are UL approved. Their capacitor windings are self-healing. The components are available with fast-on terminals (B32318A*, B32358A*) or wire terminals (B32317A*, B32357A*).

The new capacitors are suitable for use in household appliances, such as washing machines, dishwashers and refrigerators as well as in compressors, air-conditioners, pumps or awning drives. They can also be used as output filters for UPS installations.



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