7.4 Ambient ConditionsEnvironmentEnclosure size A, protection ratings IP20/Chassis, IP21/Type 1, IP55/Type 12, IP66/Type 4XEnclosure size B1/B2, protection ratings IP21/Type 1, IP55/Type 12, IP66/Type 4XEnclosure size B3/B4, protection ratings IP20/ChassisEnclosure size C1/C2, protection ratings IP21/Type 1, IP55/Type 12, IP66/Type 4XEnclosure size C3/C4, protection ratings IP20/ChassisEnclosure kit available ≤ enclosure size A IP21/TYPE 1/IP4X topVibration test enclosure A/B/C 1.0 gMaximum relative humidity 5–95% (IEC 721-3-3; Class 3K3 (non-condensing) during operationAggressive environment (IEC 721-3-3), uncoated class 3C2Aggressive environment (IEC 721-3-3), coated class 3C3Test method according to IEC 60068-2-43 H2S (10 days)Ambient temperature Maximum 50 °C (122 °F)Derating for high ambient temperature, see chapter 5 Special Conditions.Minimum ambient temperature during full-scale operation 0 °C (32 °F)Minimum ambient temperature at reduced performance -10 °C (14 °F)Temperature during storage/transport -25 to +65/70 °C (-13 to +149/158 °F)Maximum altitude above sea level without derating 1000 m (3300 ft)Maximum altitude above sea level with derating 3000 m (10,000 ft)Derating for high altitude, see chapter 5 Special Conditions.EMC standards, Emission EN 61800-3EMC standards, Immunity EN 61800-3Energy efficiency class1) IE21) Determined according to EN50598-2 at:• Rated load• 90% rated frequency• Switching frequency factory setting• Switching pattern factory setting7.5 Cable SpecificationsMaximum motor cable length, shielded/armored 150 m (492 ft)Maximum motor cable length, non-shielded/unarmored 300 m (984 ft)Maximum cross-section to motor, line power, load sharing and brake1)Maximum cross-section to control terminals, rigid wire 1.5 mm2/16 AWG (2 x 0.75 mm2)Maximum cross-section to control terminals, flexible cable 1 mm2/18 AWGMaximum cross-section to control terminals, cable with enclosed core 0.5 mm2/20 AWGMinimum cross-section to control terminals 0.25 mm2/24 AWG1) See electrical data tables in chapter 7.1 Electrical Data for more information.It is mandatory to ground the AC line input connection properly using T95 (PE) of the adjustable frequency drive. Theground connection cable cross-section must be at least 10 mm2 or 2 rated line power wires terminated separately accordingto EN 50178. See also chapter 3.2.8 Ground Leakage Current. Use non-shielded cable.Specifications VLT® AQUA Drive FC 202166 Danfoss A/S © 09/2014 All rights reserved. MG20N62277