User manual

1 Preface

Thank you for choosing inverters from the coolceptproduct line of Steca Elektronik GmbH . By using

solar energy, you are making a significant contribution to environmental protection; by reducing the

amount of carbon dioxide (CO

) and other harmful gases that burden the earth's atmosphere.

Maximum efficiency with a long service life

The innovative inverter topology is based on a single-stage transformer-less 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 surface temperatures of the devices overall

remains extremely low. In addition, there are clear benefits for the installation. 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.

Visualization and accessories

The devices have a graphic display, with which the energy load values, actual capacities, and oper-

ating parameters of the photovoltaic system can be visualized. The innovative menu offers the possi-

bility of individual selection of the different measured values.

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 | Z09.3 | 2017-09-05