Power

Power is the description for electrical feedthroughs used for the transmission of high voltages and/or high current into vacuum systems. Power feedthrough options include many variations of design which offer a broad range of voltage and current. High purity alumina ceramic insulators provide electrical isolation and various conductor materials offer specific current capacities.

MPF offers several mounting options for power feedthroughs: Weldable, Quick Flange (QF), Conflat Flange (CF), and Baseplate (BP). Baseplate versions of power feedthroughs are commonly used in vacuum furnaces and vacuum coating applications. Many designs are also configured for NPT style adapters. Custom adapters, plates and flange configurations are available by request.

High Voltage and High Current

The voltage rating for feedthroughs is determined by the length of the ceramic insulator, or the surface distance in the case of fluted designs. MPF offers power feedthroughs with voltage ratings up to 60,000 Volts DC. The current rating for feedthroughs is dependent on the conductor material. The choice of which must consider other factors such as strength and corrosion resistance. Copper gives the best current capacity, while stainless steel offers high strength and resistance to corrosion. Nickel, Alumel and Molybdenum are other popular conductor materials. MPF offers power feedthroughs with current ratings to 1000 Amps.

Water-cooled and RF Power

Water-cooled feedthroughs are intended for use with grounded, closed-loop cooling systems and non-conductive coolants such as deionized water. Standard conductor options for these feedthroughs include copper, nickel and stainless tubes. Water-cooled feedthroughs are rated for up to 5000 Volts DC and up to 1000 Amps. RF Power Feedthroughs are specifically designed for the transmission of Radio Frequency power into the vacuum environment. Non-magnetic materials are used in RF feedthroughs to reduce current induction. RF Feedthroughs are rated up to 3000 Volts DC and up to 1000 Amps.

Power Glove Connectors

MPF offers the Power Glove series of high voltage feedthroughs which includes an air-side connector / cable (96 inches) for safe and convenient termination of high voltage and high current leads. Power Glove fitted feedthroughs are rated up to 20,000 Volts DC and 30 Amps.