Danfoss VLT MCD 600 Operating Manual
Also see for VLT MCD 600: Installation guideInstallation guideInstallation guideOperating guide
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Table 11: Circuit Breakers - High Fault Short-circuit CurrentModel Nominal rating [A] Breaker 1: Eaton (rating, A) (1) Breaker 2: GE (rating, A) (1) Breaker 3: LS (rating, A) (1) (2)MCD6-0020B 24 HFD3030 (30 A) SELA36AT0060 (60 A) UTS150H-xxU-040 (40 A)MCD6-0034B 42 HFD3050 (50 A) UTS150H-xxU-050 (50 A)MCD6-0042B 52 HFD3060 (60 A) UTS150H-xxU-060 (60 A)MCD6-0063B 64 HFD3100 (100 A) SELA36AT0150 (150 A) UTS150H-xxU-100 (100 A)MCD6-0069B 69MCD6-0086B 105 HFD3125 (125 A) UTS150H-xxU-125 (125 A)MCD6-0108B 115MCD6-0129B 135 HFD3150 (150 A) UTS150H-xxU-150 (150 A)MCD6-0144B 184 HFD3250 (250 A) SELA36AT0250 (250 A) UTS150H-xxU-250 (250 A)MCD6-0171B 200MCD6-0194B 229MCD6-0244B 250 HFD3300 (300 A) SELA36AT0400 (400 A) UTS150H-xxU-300 (300 A)MCDF6-0287B 352 HFD3400 (400 A) SELA36AT0600 (600 A) UTS150H-xxU-400 (400 A)MCD6-0323B 397MCD6-0410B 410 HFD3600 (600 A) UTS150H-xxU-600 (600 A)MCD6-0527B 550 UTS150H-xxU-800 (800 A)MCD6-0579B 580 UTS150H-NG0-8001 Suitable for use on a circuit capable of delivering not more than 65000 rms symmetrical amperes, 480 V AC maximum, when protected by circuit breaker models listed in this table.2 For LS circuit breakers, xx represents FM, FT, or AT.3.14 Fuse Selection for Type 2 CoordinationType 2 coordination is achieved by using semiconductor fuses. These fuses must be able to carry motor start current and have a totalclearing I2t less than the I2t of the soft starter SCRs.When selecting semiconductor fuses for VLT® Soft Starter MCD 600, use the I2t values in table 12.For further information on selecting semiconductor fuses, contact the local distributor.Table 12: SCR Values for Semiconductor FusesModel SCR I2t [A2s]MCD6-0020B 1150MCD6-0034B 7200MCD6-0042BMCD6-0063B 15000MCD6-0069BSystem DesignOperating Guide | VLT® Soft Starter MCD 600AQ262141844215en-000202 / 175R1174 | 23Danfoss A/S © 2018.10 |
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