Static Bypass Switch

Our UNB and STS range of static bypass switches features the latest micro controller technology for monitoring, synchronization and load transfer. It consists of an anti parallel thyristor switch in the bypass and inverter output. The units are programmable for online and offline operation. In case of failure or overloading of the load feeder with the highest priority the unit switches over to second source without interruption (<4ms).
The optimized digital PLL guarantees very high synchronization speed between mains and inverter frequency and therefore also diesel gensets can be used as a second source.

STS207 LV/ HV
A series of very compact Static bypass switches. Minimized synchronization time of inverter and mains frequency is guaranteed by digital PLL.

UNB5.0
A range of static bypass switches features the modern micro controller technology for monitoring, synchronization and communication.

UNB12.5
A range of static bypass switches features the modern micro controller technology for monitoring, synchronization and communication.

UNB23.0
The UNB range of static bypass switches features the modern micro controller technology for monitoring, synchronization and communication.

UNB40.0
A range of static bypass switches features the modern micro controller technology for monitoring, synchronization and communication.