SELECTABLE INPUT TRANSIENT VOLTAGE SUPPRESSOR

An electrical system includes an input node (102) electrically connectable to a power supply (104). The system includes a plurality of voltage suppressors (106, 108, 200, 202), with at least one of the voltage suppressors electrically connected to the input node. A voltage selection switch (110) is electrically connected to at least one of the plurality of voltage suppressors. A controller (114) in communication with the switch may selectively operate the switch based on a nominal operating voltage at the input node. 种电系统包括可电连接到电源（104）的输入节点（102）。该系统包括多个电压抑制器（106、108、200、202），其中电压抑制器中的至少个电连接到输入节点。电压选择开关（110）电连接到多个电压抑制器中的至少个。与开关通信的控制器（114）可以基于输入节点处的标称工作电压选择性地操作开关。