... power regulator, power controller 1. sealed IC circuit board 2. easy to install 3. used on power regulation equipment SCR power controller, ... % 50/60HzEffective value current and refrigerating modeCompulsory air cooling mode: 40A, 60A, 80A, 100A, 160A, 200A, 300A, 400AWater cooling ... If R-S-T wiring is correct, then SCR controller phase identification neon lights are onControl modePhase control voltage ...