Autotrasf control panels for 1 pump with autotransformer start type, recommended specifically for squirrel cage motor of medium/high power with high inertia.

General features
• Power supply 3 ~ 50/60Hz 400V ±10%;
• 24 Vac transformer for auxiliary circuit;
• Low voltage inputs and control circuits;
• Normally open pre-start command input;
• Normally open pre-command input at minimum level;
• Automatic-0-Manual selector (stable manual):
• 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;
• AC3 line and autotransformer starter contactors;
• Autotransformer;
• Internal resettable thermal overload relay;
• Autotransformer timer;
• Auxiliary and motor protection with fuses;
• Door lock main switch;
• IP55 metal box;
• Ambient temperature: -5/+40 °C;
• Relative humidity 50% at 40°C (non-condensing).