Danfoss VLT AutomationDrive FC 300 Operating Instructions Manual

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3.3. Electrical InstallationNB!Cables GeneralAll cabling must comply with national and local regulations on cable cross-sectionsand ambient temperature. Copper (60/75°C) conductors are recommended.Aluminium ConductorsTerminals can accept aluminium conductors but the conductor surface has to be clean and theoxidation must be removed and sealed by neutral acid-free Vaseline grease before the conductoris connected.Furthermore the terminal screw must be retightened after two days due to softness of the alu-minium. It is crucial to keep the connection a gas tight joint, otherwise the aluminium surface willoxidize again.Tightening-up TorqueFC size 200 - 240 V 380 - 500 V 525 - 690 V Cable for: Tightening up torqueA1 0.25-1.5 kW 0.37-1.5 kW - Line, Brake resistor,load sharing, Motor ca-bles0.5-0.6 NmA2 0.25-2.2 kW 0.37-4 kW 0.75-4 kWA3 3-3.7 kW 5.5-7.5 kW 5.5-7.5 kWA5 3-3.7 kW 5.5-7.5 kW 0.75-7.5 kWB1 5.5-7.5 kW 11-15 kW - Line, Brake resistor,load sharing, Motor ca-bles1.8 NmRelay 0.5-0.6 NmEarth 2-3 NmB2 11 kW 18.5-22 kW - Line, Brake resistor,load sharing cables4.5 NmMotor cables 4.5 NmRelay 0.5-0.6 NmEarth 2-3 NmC1 15-22 kW 30-45 kW - Line, Brake resistor,load sharing cables10 NmMotor cables 10 NmRelay 0.5-0.6 NmEarth 2-3 NmC2 30-37 kW 55-75 kW - Line, Brake resistor,load sharing cables14 NmMotor cables 10 NmRelay 0.5-0.6 NmEarth 2-3 NmD1, D3 - 90-110 kW 110-132 kW Line, motor cables 19 NmLoad Sharing, brake ca-bles9.5 NmRelay 0.5-0.6 NmEarth 19 NmD2, D4 - 132-200 kW 160-315 kW Line, motor cables 19 NmLoad Sharing, brake ca-bles9.5 NmRelay 0.5-0.6 NmEarth 19 NmE1, E2 - 250-400 kW 355-560 kW Line, motor cables 19 NmLoad Sharing, brake ca-bles9.5 NmRelay 0.5-0.6 NmEarth 19 NmVLT®AutomationDrive FC 300 OperatingInstructions 3. How to InstallMG.33.A9.02 - VLT is a registered Danfoss trademark 213