All IEC Curves

K p Normal IVery I Very In ExtremeLong ExtremeLong Time Inverse 0.14 13.5 80 120 0.02 1 2 1

MultipleNo MultipleNorma rmall Very Very Extre Extreme meLon Long g Time Time 1 #DIV #DIV/0 /0!! ### ### #DIV #DIV/0 /0!! #DIV #DIV/0 /0!! 1.1 73.37 135 380.95 1200 1.2 38.32 67.5 181.82 600 1.3 26.61 45 115.94 400 1.4 20.73 33 3 3.75 83.33 300 1.5 17 17.19 27 64 240 1.6 14.82 22.5 51.28 200 1.7 1.7 13.12 .12 19.2 9.29 42. 42.33 171 171.43 .43 1.8 11.84 16 1 6.88 35.71 150 1.9 10.84 15 30.65 133.33 2 10.03 13.5 26.67 120 2.1 9.36 12.27 23.46 109.09 2.2 8.81 11 11.25 20.83 100 2.3 8.33 10.38 18.65 92.31 2.4 7.93 9.64 16.81 85.71 2.5 7.57 9 15.24 80 2.6 7.26 8.44 13 13.89 75 2.7 6.98 7.94 12.72 70.59 2.8 6.73 7.5 11.7 66.67 2.9 6.5 7.11 10.8 63.16 3 6.3 6.75 10 60 3.1 6.12 6.43 9.29 57 57.14 3.2 5.95 6.14 8.66 54 54.55 3.3 5.79 5.87 8.09 52 52.17 3.4 5.65 5.63 7.58 50 3.5 5.52 5.4 7.11 48 3.6 5.4 5.19 6.69 46.15 3.7 5.28 5 6.3 44.44 3.8 5.17 4.82 5.95 42 42.86 3.9 5.07 4.66 5.63 41 41.38 4 4.98 4.5 5.33 40 4.1 4.89 4.35 5.06 38 38.71 4.2 4.81 4.22 4.81 37.5 4.3 4.73 4.09 4.57 36 36.36 4.4 4.65 3.97 4.36 35 35.29 4.5 4.58 3.86 4.16 34 34.29 4.6 4.52 3.75 3.97 33 33.33

1500 1000 500 1 2. 3. 4. 5. 6 7. 8. 9. 2 1. 2 8 4. 5. 6. 7. 8. 9. 3 1. 2 3. 4. 5. 6. 7. 8. 9 4 6 2. 3 4 5. 6 7. 8. 4 5 6 2. 3 4. 5. 6. 7. 8. 9. 6 1. 2. 3. 4. 8 6. 7 6 1 8 1. 9 6 1 8 3 9 6 1 7 3 9 6 2 7 3 9 6 2 7 3 9 6 2 7 3 9 6 2 0 1. 9 3. 4. 5 6. 7. 8 9. 1 1. 2. 3. 4. 5 6. 7. 8. 9. 2 1. 2. 3. 4. 5. 6 01 1 1 1 1 1 1 2 0 92 2 2 2 2 2 3 3 3 3 3 3 3 9 4 04 9 4 4 0 9 5 5 5 5 5 5 5 6 6 6 6 96 9 0 97 9 90 9 09 9 0 0 0 9 9 90 0 9 9 0 0 9 9 0 0 9 9 91 0 90 0 0 0 0 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 0 09 9 09 09 0 010 0010100111000110 01100 11000 1911 11 1 1111 1111 11111 0 09 9 09 09 0 000 00 00 0000000 00 00000 00000 9 0 09 9 09 09 0 000 00 00 0000000 00 00000 00000 9 0 09 9 09 09 0 000 00 00 0000000 00 00000 00000 9 0 09 9 09 09 0 000 00 00 0000000 00 00000 00000 9 0 09 9 09 09 0 000 00 00 0000000 00 00000 00000 9 0 09 9 09 09 0 000 00000 000 000000 00000 000 0 9 0 000 00000 000 000000 00000 000 0 9 0 09 9 09 09 0 09 9 09 09 0 000 00000 000 000000 00000 000 0 9

Over Curr 

200 150 100 )

f

s( n oi t ar e p O O e mi T

50 1 1 1 1 1 1 1 1 1 2 2 . . . . . . . . . . 1 2 3 4 5 6 7 8 9 1 0 0 0 0 0 0 0 0 0

4.7 4.8 4.9 5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 6 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 7 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 8 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 9 9.1

4.45 4.39 4.34 4.28 4.23 4.18 4.13 4.08 4.04 3.99 3.95 3.91 3.87 3.84 3.8 3.77 3.73 3.7 3.67 3.64 3.61 3.58 3.55 3.53 3.5 3.48 3.45 3.43 3.4 3.38 3.36 3.34 3.32 3.3 3.28 3.26 3.24 3.22 3.2 3.18 3.17 3.15 3.13 3.12 3.1

3.65 3.55 3.46 3.38 3.29 3.21 3.14 3.07 3 2.93 2.87 2.81 2.76 2.7 2.65 2.6 2.55 2.5 2.45 2.41 2.37 2.33 2.29 2.25 2.21 2.18 2.14 2.11 2.08 2.05 2.01 1.99 1.96 1.93 1.9 1.88 1.85 1.82 1.8 1.78 1.75 1.73 1.71 1.69 1.67

3.79 3.63 3.48 3.33 3.2 3.07 2.95 2.84 2.74 2.64 2.54 2.45 2.37 2.29 2.21 2.14 2.07 2 1.94 1.88 1.82 1.77 1.72 1.67 1.62 1.57 1.53 1.49 1.45 1.41 1.37 1.34 1.3 1.27 1.24 1.21 1.18 1.15 1.12 1.1 1.07 1.05 1.02 1 0.98

32.43 31.58 30.77 30 29.27 28.57 27.91 27.27 26.67 26.09 25.53 25 24.49 24 23.53 23.08 22.64 22.22 21.82 21.43 21.05 20.69 20.34 20 19.67 19.35 19.05 18.75 18.46 18.18 17.91 17.65 17.39 17.14 16.9 16.67 16.44 16.22 16 15.79 15.58 15.38 15.19 15 14.81

0 0 0 0 1

9.2 9.3 9.4 9.5 9.6 9.7 9.8 9.9 10 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.9 11 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9 12 12.1 12.2 12.3 12.4 12.5 12.6 12.7 12.8 12.9 13 13.1 13.2 13.3 13.4 13.5 13.6

3.08 3.07 3.05 3.04 3.03 3.01 3 2.98 2.97 2.96 2.94 2.93 2.92 2.91 2.9 2.88 2.87 2.86 2.85 2.84 2.83 2.82 2.81 2.8 2.79 2.78 2.77 2.76 2.75 2.74 2.73 2.72 2.71 2.7 2.69 2.68 2.68 2.67 2.66 2.65 2.64 2.64 2.63 2.62 2.61

1.65 1.63 1.61 1.59 1.57 1.55 1.53 1.52 1.5 1.48 1.47 1.45 1.44 1.42 1.41 1.39 1.38 1.36 1.35 1.34 1.32 1.31 1.3 1.29 1.27 1.26 1.25 1.24 1.23 1.22 1.21 1.19 1.18 1.17 1.16 1.15 1.14 1.13 1.13 1.12 1.11 1.1 1.09 1.08 1.07

0.96 0.94 0.92 0.9 0.88 0.86 0.84 0.82 0.81 0.79 0.78 0.76 0.75 0.73 0.72 0.7 0.69 0.68 0.67 0.65 0.64 0.63 0.62 0.61 0.6 0.59 0.58 0.57 0.56 0.55 0.54 0.53 0.52 0.52 0.51 0.5 0.49 0.48 0.48 0.47 0.46 0.45 0.45 0.44 0.43

14.63 14.46 14.29 14.12 13.95 13.79 13.64 13.48 13.33 13.19 13.04 12.9 12.77 12.63 12.5 12.37 12.24 12.12 12 11.88 11.76 11.65 11.54 11.43 11.32 11.21 11.11 11.01 10.91 10.81 10.71 10.62 10.53 10.43 10.34 10.26 10.17 10.08 10 9.92 9.84 9.76 9.68 9.6 9.52

13.7 13.8 13.9 14 14.1 14.2 14.3 14.4 14.5 14.6 14.7 14.8 14.9 15 15.1 15.2 15.3 15.4 15.5 15.6 15.7 15.8 15.9 16 16.1 16.2 16.3 16.4 16.5 16.6 16.7 16.8 16.9 17 17.1 17.2 17.3 17.4 17.5 17.6 17.7 17.8 17.9 18 18.1

2.61 2.6 2.59 2.58 2.58 2.57 2.56 2.56 2.55 2.54 2.53 2.53 2.52 2.52 2.51 2.5 2.5 2.49 2.48 2.48 2.47 2.47 2.46 2.46 2.45 2.44 2.44 2.43 2.43 2.42 2.42 2.41 2.41 2.4 2.4 2.39 2.39 2.38 2.38 2.37 2.37 2.36 2.36 2.35 2.35

1.06 1.05 1.05 1.04 1.03 1.02 1.02 1.01 1 0.99 0.99 0.98 0.97 0.96 0.96 0.95 0.94 0.94 0.93 0.92 0.92 0.91 0.91 0.9 0.89 0.89 0.88 0.88 0.87 0.87 0.86 0.85 0.85 0.84 0.84 0.83 0.83 0.82 0.82 0.81 0.81 0.8 0.8 0.79 0.79

0.43 0.42 0.42 0.41 0.4 0.4 0.39 0.39 0.38 0.38 0.37 0.37 0.36 0.36 0.35 0.35 0.34 0.34 0.33 0.33 0.33 0.32 0.32 0.31 0.31 0.31 0.3 0.3 0.29 0.29 0.29 0.28 0.28 0.28 0.27 0.27 0.27 0.27 0.26 0.26 0.26 0.25 0.25 0.25 0.24

9.45 9.38 9.3 9.23 9.16 9.09 9.02 8.96 8.89 8.82 8.76 8.7 8.63 8.57 8.51 8.45 8.39 8.33 8.28 8.22 8.16 8.11 8.05 8 7.95 7.89 7.84 7.79 7.74 7.69 7.64 7.59 7.55 7.5 7.45 7.41 7.36 7.32 7.27 7.23 7.19 7.14 7.1 7.06 7.02

18.2 18.3 18.4 18.5 18.6 18.7 18.8 18.9 19 19.1 19.2 19.3 19.4 19.5 19.6 19.7 19.8 19.9 20

2.34 2.34 2.33 2.33 2.33 2.32 2.32 2.31 2.31 2.3 2.3 2.3 2.29 2.29 2.28 2.28 2.28 2.27 2.27

0.78 0.78 0.78 0.77 0.77 0.76 0.76 0.75 0.75 0.75 0.74 0.74 0.73 0.73 0.73 0.72 0.72 0.71 0.71

0.24 0.24 0.24 0.23 0.23 0.23 0.23 0.22 0.22 0.22 0.22 0.22 0.21 0.21 0.21 0.21 0.2 0.2 0.2

6.98 6.94 6.9 6.86 6.82 6.78 6.74 6.7 6.67 6.63 6.59 6.56 6.52 6.49 6.45 6.42 6.38 6.35 6.32

. . . . . 3. 4. 5. 6. 7. 8. 9 41 1. 2. 3. 4. 5 6. 7. 8. 9. 51 1. 2. 3. 4. 5. 6 7. 8. 9 61 10 2. 3. 99 5. 10 7. 8. 99 71 10 2. 3 99 5. 10 7. 8. 99 81 10 2. 3. 99 5. 10 7. 8. 99 1 10 2. 3. 99 5. 10 7. 8. 99 02 3 3 3 3 3 3 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 06 6 9 6 06 6 9 07 9 7 07 7 9 08 8 9 8 08 8 9 0 9 9 99 09 9 9 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 01 1 9 1 01 1 9 01 9 1 01 1 9 01 1 9 1 01 1 9 0 1 1 91 01 1 9 0 90 90 90 90 90 90 90 9 0 90 90 90 90 90 90 90 9 0 90 90 90 90 90 90 90 9 0 90 90 90 90 90 90 90 9 0 90 90 90 90 90 90 90 9 0 90 90 90 90 90 90 90 9 0 90 90 90 90 90 90 90 9

Normal Very Extremely Long Time

nt Relay (Inverse) IEC Characteristic

2 . 2 0 0 0 0 0 0 0 0 0

2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 5 . . . . . . . . . . . . . . . . . . . . . . . . . 2 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 0 2 3 4 5 5 7 8 9 9 9 0 9 0 9 9 0 9 0 9 9 0 9 0 9 9 0 9 0 9 9 0 9 0 9 9 0 9 0 9 9 0 9 0 9 9 0 9 0 9 9 0 9 0

Normal Very Extremely Long Time

0 0 0 0 2

9 9 9 9 8

Multiple of current

9 9 9 9 6

0 0 0 0 4

9 9 9 9 6

0 0 0 0 4