Grässlin By Intermatic

Grasslin St. Georgen


Acquired in 2007, Grässlin has become a global extension of Intermatic. 

Grässlin features a robust line of products in the area of time switch technology and light and temperature control.  It strives to develop practical-oriented, market-driven solutions together with professional support to meet the demands of its customers.

The European Company is headquartered in the historic Black Forest city of St. Georgen, Germany, where it manufactures its world-renowned products. With engineering and marketing offices in St. Georgen, and sales satellites around the globe, Grässlin serves over 50 countries with an export level over 80%.

Today, Grässlin plays a vital role in helping Intermatic become a global leader in energy management solutions.



Are you in North America? Visit the Intermatic website for Grässlin products.

To view our complete line of Grässlin products sold worldwide, please visit


Grasslin GmbH
Bundesstr 36
78112 St. Georgen
Phone:  +49 7724 933 0
Fax:      +49 7724 933-240

New Product Highlights


The Intermatic® line of occupancy sensors are engineered and tested for long-lasting performance. In-Wall and Ceiling Mount sensors in both PIR (infrared) and dual (PIR/ultrasonic) technologies can monitor virtually any area within a building, providing solutions for any retrofit or new construction project. They utilize zero-crossing technology to suppress inrush current impact, supplying reliable ON/OFF sensing no matter the lighting technology.


The Intermatic® ICUBE™ Adaptive Defrost Module cuts defrost cycles--and utility bills--for the food service industry. Designed by Grässlin by Intermatic for commercial walk-in coolers and freezers, the smart-sensing technology behind the ICUBE™ continuously monitors evaporator coil temperatures and only allows defrosting when necessary at the next programmed timer interval.

Surge Protective Device Group Shot

The Intermatic® Surge Protective Device with Consumable Modules covers 100% of a home’s big investment equipment, from appliances and computers, to HVAC equipment and TVs. The Surge Protective Device uses replaceable Consumable Modules that allows homeowners to easily and safely replace a module when the built-in LED light indicates it has been compromised.