For more information about EMC, see chapter 2.5.18 EMC Compliance and chapter 3.2 EMC, Harmonics, and Ground LeakageProtection.NOTICEEMC INTERFERENCEUse screened cables for motor and control wiring, and separate cables for input power, motor wiring, and controlwiring. Failure to isolate power, motor, and control cables can result in unintended behaviour or reduced performance.Minimum 200 mm (7.9 in) clearance between power, motor, and control cables is required.3.7 Mechanical Planning3.7.1 ClearanceSide-by-side installation is suitable for all enclosure sizes,except when an IP21/IP4X/TYPE 1 enclosure kit is used (seechapter 3.8 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. Illustration 3.27 shows how to mount correctly.NOTEFor A2 and A3, ensure a clearance between the frequencyconverters of minimum 40 mm.130BD389.11A2B3 B3A2Illustration 3.27 Correct Side-by-side Mounting with noClearanceHorizontal clearance, IP21 enclosure kitWhen the IP21 enclosure kit is used on enclosure sizes A2or A3, ensure a clearance between the frequencyconverters of minimum 50 mm.Vertical clearanceFor optimal cooling conditions, ensure vertical clearancefor free air passage above and below the frequencyconverter. See Illustration 3.28.ab130BA419.10EnclosuresizeA2/A3/A4/A5/B1B2/B3/B4/C1/C3 C2/C4a [mm] 100 200 225b [mm] 100 200 225Illustration 3.28 Vertical ClearanceSystem Integration VLT® Refrigeration Drive FC 10362 Danfoss A/S © 08/2015 All rights reserved. MG16G20233
