Stardelta 1-2-3 control panels suitable for star-delta starting of centrifugal pumps or pressure booster systems with surface pumps.

General features
• Power supply 3 ~ 50/60Hz 400V ±10%;
• 24 Vac transformer for auxiliary circuit;
• Low voltage inputs and control circuits;
• Auxiliary and motor protection with fuses;
• Door lock main switch;
• ABS box up to 11KW, metal box from 15KW, IP55;
• Ambient temperature: -5/+40 °C;
• Relative humidity 50% at 40°C (non-condensing).
• Normally open input for start command;
• Normally open input for minimum level/pressure command;
• Auto-0-Manual Selector (Stable):
Manual: direct operation without operation;
Automatic: operation controlled by minimum and start inputs;
• Network presence blue LED;
• Green LED for active motor;
• Red LED for motor overload alarm;
• Line-star-delta switches in AC3;
• Internal resettable thermal overload relay;
• Adjustable star-triangle timer.