This controller is UNTESTED. We do not have a matching turbo pump to test with. The unit does power on and the yellow POWER light ignites faintly.
Turbo pump controller
Power input rating: 110 / 220 / 240 VAC, 50 - 60 Hz, 8.3 / 4.4 / 3.8 Amps
Leybold-Heraeus NT 450 Tubrotronik Turbo Pump Controller TURBOVAC