Kohler Power Systems is launching a new Mobile Paralleling Box, which the company claims delivers cutting-edge flexibility by allowing users to combine different sized generators with different fuel types. The new paralleling box is specifically designed for use with Kohler’s gaseous and diesel mobile generator line. It also allows users to mix and match different size generators to meet job requirements.  Four of the new boxes can be used to parallel as many as eight generators. The Kohler Decision-Maker 3500 digital controller, which is standard on all Kohler gaseous and Tier 4 Final diesel mobile generators, provides the paralleling intelligence and network communications for remote monitoring.

The digital controller along with the new Mobile Paralleling Box makes it possible to parallel generators for applications such as using multiple smaller units to replace a larger generator, providing redundancy to a primary generator in support of critical loads, meeting system capacity demands when one generator is inadequate, or managing generators to be sequenced on or off in a predetermined order based on system output.

The new system uses contactors to connect to the bus and eliminates the need for installing or investing in motorized breakers on generators that may never be used in a parallel application. Each contactor is rated at 1,000 amps — different sized generators can parallel as long as each unit’s output is less than 1,000 amps.