Welcome to the BENDER Group
                 Your partner for electrical safety

                    
As early as the thirties, Walther Bender succeeded in obtaining first patents for several insulation monitoring devices (IMDs) for ungrounded systems in mining applications. The response to the technology was tremendous, and more developments followed quickly. 
Very soon, the decision was made to cover grounded systems as well. Residual current monitoring devices (RCDs) and ground fault circuit interrupters (GFCIs) were developed and added to the product line. 
BENDER devices soon began to appear in industrial applications all over the world and requests for voltage monitoring devices came in on a frequent base. A third product line was developed and added to the Bender family of protection devices: The protection relays. 

Today, BENDER devices help worldwide to avoid accidents and are protecting people and equipment by supporting electrically safe environments. Our quality management begins in research & development, continues into purchasing and ends with final testing and inspection to ensure high reliability for all Bender products. 

BENDER Products
-   Protection relays for single and three phase systems up to 690VAC
-   Ground fault monitoring devices for grounded systems
-   Ground Fault Circuit Interrupters for both, portable and fixed installed use
-   Insulation monitoring devices for ungrounded systems
-   Ground Fault Location devices, portable and fixed installed
-  Power supplies for hospitals including Line Insulation Monitors
-   Medical testers

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current relays - voltage relays - phase failure relays - phase loss relays - frequency relays