User manual

1 Preface

Thank you for choosing inverters from the

coolcept

range of products manufactured by Steca Elek-

tronik GmbH. By using solar energy you make a significant contribution to environmental protection

by reducing the total amount of atmospheric pollution caused by carbon dioxide (CO

) and other

damaging gases.

Highest efficiency with longer service life

The innovative inverter topology is based on a single-stage transformerless circuit concept and is

integrated into all devices in the coolcept series. This unique technology allows peak efficiencies of

98.0 % or 98.6% to be achieved. Depending on the type, the European efficiency of the devices is

also significantly greater than 98 % and sets new standards in photovoltaic grid-feed systems.

A new and unique cooling concept inside the inverter ensures an even distribution of heat and a

long service life.

Designer casing and easy installation

For the first time, the very high efficiency allows the use of a designer casing made of plastic for the

coolcept inverters. This offers many advantages. The overall surface temperature of the devices

remains very low. There are also great installation advantages. The coolcept-x inverters have a sturdy

metal casing that allows them to be also used outdoors.

The lightweight devices weigh only 9 or 12 kg and can be easily and safely mounted on a wall. The

supplied wall bracket and practical recessed grips for right and left handed installers make

mounting of the device simple and convenient. All connections and the DC circuit breaker are exter-

nally accessible.

Visualisation tools and accessories

The devices have a graphical display for visualising the energy yield values, current performance and

operating parameters of the photovoltaic system. Its innovative menu allows individual selection of

the various measurements.

See

www.stecasolar.com

for further information on accessories. Your installer can, of course, also

give you more information about the options and accessories that are available.

747.431 | Z08 | 2014-01-31