• Dydac Controls

SCR Power Controller

Dydac Series DPC25 and DPC50 power controllers provide variable AC power control to resistive loads without contacts or other moving or hazardous parts and produce no arcing, noise or vibrations even at full power. Compact light weight and rugged, all solid state design in both control circuitry means long term reliability, even in most demanding conditions. Models are available for single or three phase operation, either phased-angle fired or zero switched. These extend heater life and eliminate thermal shock, and are optically isolated. Description: power supply – 11, 220, 380 and 440 V ±10%; load capacity – 20, 30, 50, 70, 90, 150, 200 and 350 A; output voltage – 0-97%; applicable load – pure resistance load or inductive load; and input single phase 4-20 mA DC, 0-10 V DC, manual VR adjustment. Features: load current ranges from 15-70 A; internally mounted snubber circuit protection for huge current (dv/dt) application; zero crossing turn-on, zero crossing turn-off; photo-isolation, 400 V Rms isolation; with LED display to detect the operating or devices; and ambient temperature – 10-55°C. Applications: plastic injection moulding, heat treatment furnaces, packing machines, foods machinery, drying wire and cable, plastic extrusion machinery, powder metallurgy, high temperature ceramic furnace, UV, IR drying machinery, metallic heating treatment drying machinery, plastic leather pasting, chemical - heating equipment and load testing.