Thyristor Power Controller Multidrive 3PH up to 2700A 3, 4 & 6 wire / 24Vac to 690Vac Supply / 4-20mA or 0-10V DC linear inputs, 10K Pot or RS485 Comms input / Burst Firing, Single Cycle, Soft Start + Burst Firing, Delayed Triggering + Burst Firing, Phase Angle, Soft Start + Phase Angle.