WS1.2-50-5V WS1.2-50-420A WS1.2-50-1V WS1.2-50-10V WS1.2-500-R1K WS1.2-500-PM5V WS1.2-500-5V WS1.2-500-420A WS1.2-500-1V WS1.2-500-10V