Sprecher + Schuh introduces compact combination starter

Houston, Tex. - A "simple, compact alternative to traditional combination starters" is how Sprecher + Schuh refers to its newly introduced CX7 enclosed combination starter.


Houston, Tex. - A 'simple, compact alternative to traditional combination starters' is how Sprecher + Schuh refers to its newly introduced CX7 enclosed combination starter. According to the company, CX7 needs only two basic elements: a motor circuit controller (KT7) and a contactor (CA7) for remote operation. Separate traditional items, such as an overload relay, a disconnect, and short-circuit protection, are said to be eliminated by combining multiple functions into the KT7. Because of its high short-circuit rating, versatile KT7 controller can be used as a 'through-the-door' disconnect. Fewer parts and smaller dimensions of CX7 translate into a smaller enclosure and lower unit cost.

Sprecher + Schuh's new CX7 combination starter handles motors up to 30-hp size (at 460 V ac). It supplies current limiting short-circuit protection up to 65 kA and Class 10 thermal overload protection. For single-phase conditions, a differential trip mechanism delivers faster tripping.

While CX7 offers a substantially smaller enclosure than a traditional combination starter, there is space to add a control transformer or an extra contactor. This allows configuring the unit as a reversing combination starter. A choice of ac or dc coils is available for either the reversing or non-reversing version of this combination starter.

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