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Motor current-rm-technical

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Sy Thinhbk

This document contains tables listing the full load current (FLC) in amps for single phase and three phase electric motors of varying horsepower or kW ratings. The tables provide the FLC for motors running on different standard line voltages of 110V, 220V, 240V, 380V, 415V and 550V. The document notes that the tables are intended as a guide for selecting control gear for AC motors, and that actual motor FLC should be determined from each individual motor rating plate where possible, as variations can occur.

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MOTOR CURRENT SINGLE PHASE MOTORS 110V ac 220V ac 240V ac 0.07 kW 1/12 2.4 1.2 1.1 0.1 kW 1/8 3.3 1.6 1.5 0.12 kW 1/6 3.8 1.9 1.7 0.18 kW 1/4 4.5 2.3 2.1 0.25 kW 1/3 5.8 2.9 2.6 0.37 kW 1/2 7.9 3.9 3.6 0.56 kW 3/4 11 5.5 5 0.75 kW 1 15 7.3 6.7 1.1 kW 1.5 21 10 9 1.5 kW 2 26 13 12 2.2 kW 3 37 19 17 3 kW 4 49 24 22 3.7 kW 5 54 27 25 4 kW 5.5 60 30 27 5.5 kW 7.5 85 41 38 7.5 kW 10 110 55 50 THREE PHASE MOTORS 220V ac 240V ac 380V ac 415V ac 550V ac 0.1 kW 1/8 0.7 0.6 0.4 0.4 0.3 0.12 kW 1/6 1 0.9 0.5 0.5 0.3 0.18 kW 1/4 1.3 1.2 0.8 0.7 0.4 0.25 kW 1/3 1.6 1.5 0.9 0.9 0.6 0.37 kW 1/2 2.5 2.3 1.4 1.3 0.8 0.56 kW 3/4 3.1 2.8 1.8 1.6 1.1 0.75 kW 1 3.5 3.2 2 1.8 1.4 1.1 kW 1.5 5 4.5 2.8 2.6 1.9 1.5 kW 2 6.4 5.8 3.7 3.4 2.6 2.2 kW 3 9.5 8.7 5.5 5 3.5 3.0 kW 4 12 11 7 6.5 4.7 3.7 kW 5 15 13 8 8 6 4.0 kW 5.5 16 14 9 8 6 5.5 kW 7.5 20 19 12 11 8 7.5 kW 10 27 25 16 15 11 9.3 kW 12.5 34 32 20 18 14 10 kW 13.5 37 34 22 20 15 11 kW 15 41 37 23 22 16 15 kW 20 64 50 31 28 21 18 kW 25 67 62 39 36 26 22 kW 30 74 70 43 39 30 30 kW 40 99 91 57 52 41 37 kW 50 130 119 75 69 50 45 kW 60 147 136 86 79 59 55 kW 75 183 166 105 96 72 75 kW 100 239 219 138 125 95 90 kW 125 301 269 170 156 117 110 kW 150 350 325 205 189 142 130 kW 175 410 389 245 224 169 150 kW 200 505 440 278 255 192 HPMOTOR RATING APPROX. F.L.C. AT LINE VOLTAGE MOTOR RATING HP APPROX. F.L.C. AT LINE VOLTAGE AC Motors - full load current tables (1450rpm approx.) (provided as a guide to the selection of suitable MEM control gear). The tables are based on motors of approximately 1450rpm of average efficiency and power factor. Motors of higher speed usually take a lower current than that shown in the table; while motors of lower speed usually take higher current. Wide variations from these figures can arise, especially on single phase motors, and engineers should, whenever possible, determine the actual f.l.c from the motor rating plate in each case.

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Motor current-rm-technical

  • 1. MOTOR CURRENT SINGLE PHASE MOTORS 110V ac 220V ac 240V ac 0.07 kW 1/12 2.4 1.2 1.1 0.1 kW 1/8 3.3 1.6 1.5 0.12 kW 1/6 3.8 1.9 1.7 0.18 kW 1/4 4.5 2.3 2.1 0.25 kW 1/3 5.8 2.9 2.6 0.37 kW 1/2 7.9 3.9 3.6 0.56 kW 3/4 11 5.5 5 0.75 kW 1 15 7.3 6.7 1.1 kW 1.5 21 10 9 1.5 kW 2 26 13 12 2.2 kW 3 37 19 17 3 kW 4 49 24 22 3.7 kW 5 54 27 25 4 kW 5.5 60 30 27 5.5 kW 7.5 85 41 38 7.5 kW 10 110 55 50 THREE PHASE MOTORS 220V ac 240V ac 380V ac 415V ac 550V ac 0.1 kW 1/8 0.7 0.6 0.4 0.4 0.3 0.12 kW 1/6 1 0.9 0.5 0.5 0.3 0.18 kW 1/4 1.3 1.2 0.8 0.7 0.4 0.25 kW 1/3 1.6 1.5 0.9 0.9 0.6 0.37 kW 1/2 2.5 2.3 1.4 1.3 0.8 0.56 kW 3/4 3.1 2.8 1.8 1.6 1.1 0.75 kW 1 3.5 3.2 2 1.8 1.4 1.1 kW 1.5 5 4.5 2.8 2.6 1.9 1.5 kW 2 6.4 5.8 3.7 3.4 2.6 2.2 kW 3 9.5 8.7 5.5 5 3.5 3.0 kW 4 12 11 7 6.5 4.7 3.7 kW 5 15 13 8 8 6 4.0 kW 5.5 16 14 9 8 6 5.5 kW 7.5 20 19 12 11 8 7.5 kW 10 27 25 16 15 11 9.3 kW 12.5 34 32 20 18 14 10 kW 13.5 37 34 22 20 15 11 kW 15 41 37 23 22 16 15 kW 20 64 50 31 28 21 18 kW 25 67 62 39 36 26 22 kW 30 74 70 43 39 30 30 kW 40 99 91 57 52 41 37 kW 50 130 119 75 69 50 45 kW 60 147 136 86 79 59 55 kW 75 183 166 105 96 72 75 kW 100 239 219 138 125 95 90 kW 125 301 269 170 156 117 110 kW 150 350 325 205 189 142 130 kW 175 410 389 245 224 169 150 kW 200 505 440 278 255 192 HPMOTOR RATING APPROX. F.L.C. AT LINE VOLTAGE MOTOR RATING HP APPROX. F.L.C. AT LINE VOLTAGE AC Motors - full load current tables (1450rpm approx.) (provided as a guide to the selection of suitable MEM control gear). The tables are based on motors of approximately 1450rpm of average efficiency and power factor. Motors of higher speed usually take a lower current than that shown in the table; while motors of lower speed usually take higher current. Wide variations from these figures can arise, especially on single phase motors, and engineers should, whenever possible, determine the actual f.l.c from the motor rating plate in each case.