Table 1. Factory-Recommended Branch Circuit Protection: Three-Phase 400 V Class Drive Model Maximum Applicable Motor Output kW (HP) Time Delay Fuse Semiconductor Protection Fuse Rated Current Manufacturer: EATON/Bussmann ND HD Class J, CC, and T Fuse Rated Current A Model Fuse Rated Current A 4001 0.4 (1/2) 0.2 (1/2) 3 FWH-40B 40 4002 0.75 (1) 0.4 (3/4) 3.5 FWH-40B 40 4004 1.5 (2) 0.75 (2) 7 FWH-50B 50 4005 2.2 (3) 1.5 (3) 9 FWH-70B 70 4007 3.0 (4) 2.2 (3) 12 FWH-70B 70 4009 3.7 (5) 3.0 (4) 15 FWH-90B 90 4012 5.5 (7.5) 3.7 (5) 20 FWH-90B 90 4018 7.5 (10) 5.5 (10) 30 FWH-80B 80 4023 11.0 (15) 7.5 (10) 40 FWH-100B 100 4031 15.0 (20) 11.0 (15) 50 FWH-125B 125 4038 18.5 (25) 15.0 (20) 60 FWH-175B 175 4044 22.0 (30) 18.5 (25) 70 FWH-200B 200 4060 30.0 (40) 22.0 (30) 100 FWH-200B 200