Danfoss VLT AutomationDrive FC 301 Design Manual

Also see for VLT AutomationDrive FC 301: Programming guide Installation guide Operating guide Installation guide Design guide

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Danfoss VLT AutomationDrive FC 301 Design Manual Manual pdf 125 page image

9.3.1.2 RecommendationsThe tables in chapter 9.3.1 Fuses and Circuit Breakers list therecommended rated current. Recommended fuses are ofthe type gG for small to medium power sizes. For largerpower sizes, aR fuses are recommended. For circuitbreakers, Moeller types are recommended. Other types ofcircuit breakers may be used, provided they limit theenergy into the frequency converter to a level equal to orlower than the Moeller types.If fuses/circuit breakers according to recommendations areselected, possible damage on the frequency converter ismainly limited to damages inside the unit.For further information see Application Note Fuses andCircuit Breakers, MN90T.9.3.1.3 CE ComplianceFuses or circuit breakers are mandatory to comply with IEC60364. Danfoss recommend using a selection of thefollowing.The fuses below are suitable for use on a circuit capable ofdelivering 100,000 Arms (symmetrical), 240 V, 500 V, 600 V,or 690 V depending on the frequency converter voltagerating. With the proper fusing the frequency convertershort circuit current rating (SCCR) is 100,000 Arms.The following UL listed fuses are suitable:• UL248-4 class CC fuses• UL248-8 class J fuses• UL248-12 class R fuses (RK1)• UL248-15 class T fusesThe following max. fuse size and type have been tested:Enclosure Power [kW] Recommendedfuse sizeRecommendedmax. fuseRecommended circuitbreakerMoellerMax trip level [A]A1 0.25-1.5 gG-10 gG-25 PKZM0-10 10A2 0.25-2.2 gG-10 (0.25-1.5)gG-16 (2.2)gG-25 PKZM0-16 16A3 3.0-3.7 gG-16 (3)gG-20 (3.7)gG-32 PKZM0-25 25A4 0.25-2.2 gG-10 (0.25-1.5)gG-16 (2.2)gG-32 PKZM0-25 25A5 0.25-3.7 gG-10 (0.25-1.5)gG-16 (2.2-3)gG-20 (3.7)gG-32 PKZM0-25 25B1 5.5-7.5 gG-25 (5.5)gG-32 (7.5)gG-80 PKZM4-63 63B2 11 gG-50 gG-100 NZMB1-A100 100B3 5.5 gG-25 gG-63 PKZM4-50 50B4 7.5-15 gG-32 (7.5)gG-50 (11)gG-63 (15)gG-125 NZMB1-A100 100C1 15-22 gG-63 (15)gG-80 (18.5)gG-100 (22)gG-160 (15-18.5)aR-160 (22)NZMB2-A200 160C2 30-37 aR-160 (30)aR-200 (37)aR-200 (30)aR-250 (37)NZMB2-A250 250C3 18.5-22 gG-80 (18.5)aR-125 (22)gG-150 (18.5)aR-160 (22)NZMB2-A200 150C4 30-37 aR-160 (30)aR-200 (37)aR-200 (30)aR-250 (37)NZMB2-A250 250Table 9.3 200-240 V, Enclosure Types A, B and CElectrical Installation VLT® AutomationDrive FC 301/FC 302 Design Guide, 0.25-75 kWMG33BF02 - Rev. 2013-12-20 1239 9