For more information about EMC, see chapter 2.5.18 EMCCompliance and chapter 3.2 EMC, Harmonics and GroundLeakage Protection.NOTICE!EMC INTERFERENCERun cables for input power, motor wiring and controlwiring in three separate metallic conduits. Failure toisolate power, motor, and control cables can result inunintended behavior or reduced performance. Minimum200 mm (7.9 in) clearance between power, motor, andcontrol cables is required.3.6 Mechanical Planning3.6.1 ClearanceSide-by-side installation is suitable for all enclosure sizes,except when an IP21/IP4X/TYPE 1 enclosure kit is used (seechapter 3.7 Options and Accessories).Horizontal clearance, IP20IP20 A and B enclosure sizes can be arranged side-by-sidewith no clearance. However, the correct mounting order isimportant. Figure 3.23 shows how to mount correctly.130BD389.11A2B3 B3A2Figure 3.23 Correct Side-by-side Mounting with no ClearanceHorizontal clearance, IP21 enclosure kitWhen the IP21 enclosure kit is used on enclosure sizes A1,A2 or A3, ensure a clearance between the adjustablefrequency drives of minimum 50 mm (2 in).Vertical clearanceFor optimal cooling conditions, ensure vertical clearancefor free air passage above and below the adjustablefrequency drive. See Figure 3.24.ab130BA419.10Enclosure size A1*/A2/A3/A4/A5/B1B2/B3/B4/C1/C3 C2/C4a [mm (in)] 100 (3.94) 200 (7.87) 225 (8.86)b [mm (in)] 100 (3.94) 200 (7.87) 225 (8.86)Figure 3.24 Vertical Clearance3.6.2 Wall MountingWhen mounting on a flat wall, no backplate is required.When mounting on an uneven wall, use a backplate toensure sufficient cooling air over the heatsink. Use thebackplate with enclosures A4, A5, B1, B2, C1 and C2 only.System Integration Design GuideMG20N622 Danfoss A/S © 09/2014 All rights reserved. 673 3
