MH Vishay ESTA Low Voltage Capacitors have been designed for Power Factor Correction in low voltage plants. Loads such as motors and transformers consume real power as well as reactive power. Generators, supply cables, and other electrical distribution equipment should be relieved from reactive power.
MH Vishay ESTA Low Voltage Capacitors are based on MKP-technology. The active element consists of metallized polypropylene film with self-healing properties. Three winding elements are encapsulated in one aluminum casing and connected to form a true 3-phase capacitor. In a stacked assembly, these winding elements greatly reduce the risk of device breakdown.
The design ensures the highest safety by self-healing technology as well as by an overpressure tear-off fuse to prevent the capacitor from bursting at the end of service life, or due to inadmissible electrical or thermal overloads.
We offer both oil-impregnated and dry versions. Both versions comply with the highest temperature class D specified by the standards. For filter applications, oil-impregnated design in particular, provides excellent heat dissipation which helps to overcome very high loads. With a higher safety margin by design, the oil-impregnated design offers a life expectancy of >150,000 operating hours.