Control_Flippingbook_JULY 2026

NEMA FULL VOLTAGE POWER DEVICES, CONTROL SECTION 1

1-118

— Plug and play enclosed starters Electronic overload relay sizing chart

— Correct sizing of overload relays as per motor HP for NEMA-rated starters

3-phase

208 V

240 V 480 V 600 V

Electronic overload relay class 10, 20, 30

Suffix for factory installation

– – – – – – – – – – –

– – – – – – – – – –

– – – – – – – –

– – – – – – –

EF19-0.32 (0.10 ... 0.13) EF19-0.32 (0.10 ... 0.13) EF19-0.32 (0.10 ... 0.13) EF19-0.32 (0.10 ... 0.13) EF19-1.0 (0.30 ... 0.41) EF19-1.0 (0.41 ... 0.55) EF19-1.0 (0.55 ... 0.74) EF19-1.0 (0.74 ... 1.0) EF19-2.7 (0.8 ... 1.3) EF19-2.7 (1.3 ... 1.7) EF19-2.7 (1.7 ... 2.7) EF19-6.3 (1.9 ... 3.1) EF19-6.3 (3.1 ... 4.2) EF19-6.3 (4.2 ... 6.3) EF19-18.9 (5.7 ... 7.6) EF19-18.9 (7.6 ... 10) EF19-18.9 (10 ... 13) EF19-18.9 (13 ... 18.9) EF45-30 (20 ... 24) EF45-30 (24 ... 30) EF45-45 (15 ... 45) EF65-56 (20 ... 28) EF65-56 (25 ... 33) EF65-56 (30 ... 40) EF65-56 (36 ... 48) EF65-56 (44 ... 53) EF65-70 (50 ... 60) EF65-70 (57 ... 70) EF96-100 (36 ... 51) EF96-100 (48 ... 60) EF96-100 (57 ... 68) EF96-100 (65 ... 78) EF96-100 (75 ... 87) EF96-100 (84 ... 100) EF146-150 (54 ... 90) EF146-150 (80 ... 110) EF146-150 (100 ... 135) EF146-150 (110 ... 150) EF45-30 (9 ... 20)

A B C D E F G H

1/2 3/4

1/2 3/4

J

1

K

1/2

1

–

L

1/2 3/4

–

1.5 1.5, 2

M

1

2 3 5

3

N

1

–

–

P

1.5, 2

1.5, 2

5

Q R S T U X A B C D E F G A B C D E F A B C D V W

–

3

–

7.5

3

–

7.5

10

–

5

10

– – – – –

5

–

– – – –

7.5

7.5

– – – – – – – –

– – –

15

20 25

10

10 15

20 25

–

– – – –

– – – –

40 50

– –

15

15

30 40 50

40 50

–

20

20 25

–

– – – –

25

– – –

– –

30

– –

30

60 60,75

–

40 50

75

100

40

–

– –

–

–

100

* It is the client’s responsibility to confirm whether the overload relay suggested is appropriate for their application. Please verify correct overload required for each specific application with the motor’s name plate.