... Dual solid state relay.. 5A to 200A voltage control relay,voltage control module,voltage Proportional controller Features: -Adgusting resistance: ... 1. Universal switch and thermal control 2. Industrial automatic control 3. Numerical-controlled machinery, remote-control system We aslo supply: * ... Vdc, 3 to 32 Vdc or 90~280Vac,18-36VAC Control) * Zero,Random,Analog switching all available * UL, CUL, CE, ...