Multidrive 3PH Thyristor Power Controller

• Suitable for normal resistance & transformer coupled with normal resistive loads
• Thyristors for resistive, inductive & transformer loads
• Current range – 35A, 45A, 75A, 100A, 125A, 225A, 300A, 350A, 400A, 450A, 500A, 600A, 850A, 1000A, 1400A, 1500A, 1850A, 2000A, 2400A, 2700A
• Supply voltage up to 480V as standard, 600V & 690V available as option (690V not available on 1000A, 1500A, 2000A & 2700A units)
• Microprocessor based electronic circuit fully isolated from the power
• Firing types include Burst Firing (BF), Single Cycle (SC), Soft Start + Burst Firing (S+BF), Delayed Triggering + Burst Firing (DT+BF), Phase Angle (PA), Soft Start + Phase Angle (S+PA).
• Input signals from 4-20mA, 0-10V DC Linear input, 10K Pot or RS485 comms
• Selectable control modes include V, I, VxI, V2
• Current limit as standard including internal current transformer, fully adjustable via front panel keypad
• Profiling of current limit via analogue input
• Heater Break (HB) alarm to diagnose partial or total load failure with automatic setting, relay alarm output and front LED indication.
• 4 configurable Analogue outputs, 4 Relay outputs and 6 Digital inputs as standard
• Internal quick-blow fuses as standard
• RS485 comms (Modbus Protocol) as standard
• Critical Alarms monitor phase loss, rotation and provide Thermal Protection
• Special design Heatsink with high dissipation value
• IP20 protection, cUL us is available as an option.