Control_Flippingbook_July 2024

1-56

NEMA FULL VOLTAGE POWER DEVICES, CONTROL SECTION 1

— CR487 mag-break magnetic starters Nonreversing, combination, mag-break circuit breaker type

Part number configuration Valid for NEMA sizes 0–4

— Step 3 (digits 10, 11) select protective device

— Mag-break circuit breaker - Spectra™ series

208 V

240 V

480 V

600 V

Max Hp

CB rating (amps)

Max Hp

CB rating (amps)

Max Hp

CB rating (amps)

Max Hp

CB rating (amps)

NEMA size

Code

Code

Code

Code

0

0.5

3 7

MA MB

0.5

3 – – 7

MA

1

3

MA

1

3 – 7

MA

1 – 3 – 5 –

– – 1 3 5

– –

–

–

–

–

–

–

–

3

7

MB

3

MB

15

MC

MB MC ME

–

–

–

–

–

–

–

–

15 25

5

15 25 25

MC ME ME

5

15 25

MC ME

7 1 ⁄

10

1

25

ME

2

–

–

–

–

–

10

– –

– –

– –

7 1 ⁄

40

MG

7

1 ⁄

40

MG

–

–

–

2

2

2

–

–

–

–

–

–

15

40

MG

15

40

MG

10

60

MJ

10

60

MJ

– – –

– – –

– – –

– –

– –

– –

– – – – –

– – – – –

– – – – –

– –

– –

– –

20

40

MG

15

60

MJ

20 25 30

60 60 60

MJ MJ MJ

–

–

–

– –

– –

– –

25 30

60 60

MJ MJ

3

15

100

MN

20

100

MN

– –

– –

– –

–

–

–

–

–

–

–

–

–

40

60

MJ

20 25 30

100 100 150

MN MN MR

25 30

100 100

MN MN

40 50 60

100 100 100

MN MN MN

–

–

–

50 60

100 100

MN MN

4

–

–

–

– – –

– – –

– – –

40

175

MS

–

–

–

–

–

–

– –

– –

– –

75

150

MR

75

150 150

MR MR

–

–

–

100

40

175

MS

50

175

MS

100

175

MS

–

–

–

— Step 4 (digit 12) select overload relay

Overload relay

Code

Thermal bi-metallic ambient compensated (1NC) Thermal bi-metallic ambient compensated (1NO–1NC)

3 4

Solid state overload (1NO–1NC)

(#)

(#) Select code for solid state overload amp rating from standard or optional ranges table on page 1-57.