Bus bar connectors drive out power loss

20 May, 2009

Multi-Contact’s rail industry and other power electronics connectors for laminated bus bars reduce power losses from leakage inductance by up to 25%. The ClipLam CL-T withdrawable connection enables electrical contact via Multilam torsion spring contact elements, which form independent lines of current. These parallel current lines lead to a significant reduction in the electrical resistance and inductance of the connection, compared with bolted bus bar connections.

Suitable for connecting two systems of double-pole insulated bus bars, these low contact resistance connectors are simply attached to bus bars using two clips. The bus bars can be between 2mm and 5mm thick and need to be silver plated prior to fitting.

With current ratings of 400~1600A, the rackable plasticframed ClipLams are available in lengths up to 150mm, providing high shock and vibration resistance. They also provide a selfcleaning action when mating, saving space and eliminating the risk of wiring inversion.

According to Multi-Contact, the decrease in installation and maintenance costs, together with a reduction in the amount of copper required in the bus bars, make the connectors cost-effective. Applications range from inverters and power traction converters, to frequency converters, power supplies and UPS systems within the rail industry and other power electronics sectors.

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Bus bar connectors drive out power loss