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Connectors save costs in FHP electric motors

Posted: 15 Mar 2010 ?? ?Print Version ?Bookmark and Share

Keywords:connector? electric motor? copper magnet?

Mag-Mate connector

Tyco Electronics has released the Mag-Mate insulation displacement crimp (IDC) interconnection system as a cost-effective interconnect for fractional horsepower (FHP) motor manufacturers.

The product drives cost reduction as the same part number qualifies for termination of both copper and aluminium magnet wires.

"Many medium- and high-volume manufacturers of FHP motors for appliance, heating ventilation and air-conditioning equipment are evaluating a switch from copper to aluminium magnet wire to reduce raw material costs," explains Fabrizio Longo, Tyco product manager.

"Copper contributes on average about 30 percent to the overall production cost of a FHP electric motor. Switching from copper to aluminium conductors can also reduce transportation costs, as aluminium weighs about two thirds less than copper.

Aluminium conductors have approximately 61 percent of the conductivity and a small fraction of the tensile strength of their copper counterparts. Handling properties also differ as the softer aluminium lacks the resiliency of copper.

The Mag-Mate IDC connector system compensates for these differences by providing a stable, long-term termination of aluminium magnet wire, possible because of two IDC slots that provide four gas-tight points of contact (two on each beam).

In addition, the new connector system simultaneously terminates two magnet wires of the same size in one terminal. It uses IDC technology to reduce assembly costs by eliminating soldering or stripping.

The UL recognized product terminates wire sizes ranging from 34 AWG to 12 AWG for maximum flexibility. Product offerings include multiple lead wire attachment options and special versions that mate with RAST 2.5 IDC connectors.

This product family additionally offers slim-line and mini solutions to meet the needs of customers with space constraints.

Specific applications of the product include motor windings, coil and bobbin connections, transformer windings, and lighting ballasts.

- Julien Happich
EE Times Europe

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