SHUNT SELECTION
AC MOTOR FULL-LOAD CURRENT LIST*
Amperages
Amperages
HP
RPM
HP
RPM
230 VAC
460 VAC
230 VAC
460 VAC
3600 1800 1200 3600 1800 1200 3600 1800 1200 3600 1800 1200 3600 1800 1200 3600 1800 1200 3600 1800 1200 3600 1800 1200 900 3600 1800 1200 900 3600 1800 1200 900 3600 1800 1200 900
.95 1.140 1.160
.48 .70 .80 .60 .80 .90 .86
25.4 26.8 28.0 30.5 36.4 39.2 41.4 44.5 50.4 51.2 52.8 54.9 60.8 64.8 65.6 67.3 73.7 75.6 78.8 96.4
12.7 13.4 14.0 15.2 18.2 19.6 20.7 22.2 25.2 25.6 26.4 27.4 30.4 32.4 32.8 33.7 36.8 37.8 39.4 48.2 50.4 50.6 60.1 62.2 63.0 71.7 74.5 75.0 89.6 91.6 92.0
1800 1200 900 1800 1200 900 1800 1200 900 1800 1200 900 3600 1800 1200 900 3600 1800 1200 900 3600 1800 1200 900 3600 1800 1200 900 3600 1800 1200 900 3600 1800 1200 900
¹⁄₄
Motor Current
Shunt No.
10
1.19 1.59 1.80 1.72 2.15 2.38 2.46 2.92 3.26 2.80 3.56 3.76 4.30 4.36 4.86 5.28 5.60 5.60 6.40 6.84 7.90 8.34 9.40
1.0 amp 1.5 amp 2.0 amp 5 amp 10 amp 20 amp 50 amp 100 amp 150 amp 200 amp 250 amp 300 amp 400 amp 500 amp
Shunt 1-50 Shunt 1.5-50 Shunt 2-50 Shunt 5-50 Shunt 10-50 Shunt 20-50 Shunt 50-50 Shunt 100-50 Shunt 150-50 Shunt 200-50 Shunt 250-50 Shunt 300-50 Shunt 400-50 Shunt 500-50
¹⁄₃
15
¹⁄₂
1.08 1.19 1.23 1.46 1.63 1.40 1.78 1.88 2.15 2.18 2.43 2.64 2.80 2.80 3.20 3.42 3.95 4.17 4.70 5.12 5.70 6.76 7.21 7.91 7.92 9.79
20
³⁄₄
25
1
30
1 ¹⁄₂
40
101 102 120 124 126 143 149 150 179 183 184 231 236 239 292 293 298
2
50
60
3
10.2 11.4 13.5 14.4 15.8 15.9 19.5 21.5 21.8 23.0
75
5
146 147 149 115 118 120
100
10.7 10.9 11.5
7 ¹⁄₂
125
*Amperages shown are approximates only. Shock Relay can also be used on motors below 1 / 4 hp and above 125 hp.
D-6
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