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Application – Three-Phase Motors
Table 25 Three-Phase Motor Fuse Sizing
TYPE
MOTOR
MODEL
PREFIX
RATING
CIRCUIT BREAKERS OR FUSE AMPS CIRCUIT BREAKERS OR FUSE AMPS
(MAXIMUM PER NEC) (TYPICAL SUBMERSIBLE)
STANDARD
FUSE
DUAL ELEMENT TIME
DELAY FUSE
CIRCUIT
BREAKER
STANDARD
FUSE
DUAL ELEMENT TIME
DELAY FUSE
CIRCUIT
BREAKER
HP KW VOLTS
6"
236650
5 3.7
200 60 35 45 50 25 45
236600
5 3.7
230 45 30 40 45 20 40
236660
5 3.7
380 30 17.5 25 30 12 25
236610
5 3.7
460 25 15 20 25 10 20
236620
5 3.7
575 20 12 15 20 8 15
236651
7.5 5.5
200 80 45 70 80 35 70
236601
7.5 5.5
230 70 40 60 70 30 60
236661
7.5 5.5
380 45 25 35 40 20 35
236611
7.5 5.5
460 35 20 30 35 15 30
236621
7.5 5.5
575 30 17.5 25 25 11 25
236652
10 7.5
200 100 60 90 100 45 90
236602
10 7.5
230 90 50 80 90 40 80
236662
10 7.5
380 60 35 45 50 25 45
236612
10 7.5
460 45 25 40 45 20 40
236622
10 7.5
575 35 20 30 35 15 30
236653
15 11
200 150 90 125 150 60 125
236603
15 11
230 150 80 110 125 60 110
236663
15 11
380 80 50 70 80 35 70
236613
15 11
460 70 40 60 60 30 60
236623
15 11
575 60 30 45 50 25 45
236654
20 15
200 200 110 175 175 80 175
236604
20 15
230 175 100 150 175 70 150
236664
20 15
380 100 60 90 100 45 90
236614
20 15
460 90 50 70 80 35 70
236624
20 15
575 70 40 60 70 30 60
236655
25 18.5
200 250 150 200 225 100 200
236605
25 18.5
230 225 125 175 200 90 175
236665
25 18.5
380 125 80 110 125 50 110
236615
25 18.5
460 110 60 90 100 45 90
236625
25 18.5
575 90 50 70 80 35 70
236656
30 22
200 300 175 250 300 125 250
236606
30 22
230 250 150 225 250 100 200
236666
30 22
380 150 90 125 150 60 125
236616
30 22
460 125 70 110 125 50 100
236626
30 22
575 100 60 90 100 40 80
236667
40 30
380 200 125 175 200 90 175
236617
40 30
460 175 100 150 175 70 150
236627
40 30
575 150 80 110 125 60 110
236668
50 37
380 250 150 225 250 110 225
236618
50 37
460 225 125 175 200 90 175
236628
50 37
575 175 100 150 175 70 150
236669
60 45
380 300 175 250 300 125 250
236619
60 45
460 250 150 225 250 100 225
236629
60 45
575 200 125 175 200 80 175
25