Control_Flippingbook_July 2024

1-33

NEMA FULL VOLTAGE POWER DEVICES, CONTROL SECTION 1

— CR308 magnetic starters Nonreversing, combination, nonfusible and fusible disconnect type

— Step 3 (digits 10, 11) select protective device (continued) Part number configuration Valid for NEMA sizes 0–2, type 1 standard enclosure

— Disconnect with class R fuse clips — for use with time delay/dual element class RK1/RK5 fuses

200–208 V

230–240 V

460–480 V

575–600 V

Fuse clip (amps)

Fuse clip (amps)

Fuse clip (amps)

Fuse clip (amps)

NEMA size

Max Hp

Code

Max Hp

Code

Max Hp

Code

Max Hp

Code

0 1

3 5

30 30 60 60

RA RA RB RB

3 5

30 30 60 60

RA RA RB RB

5

30 30

R3 R3

5

30 30

R3 R3

10

10

7 1 ⁄

7

1 ⁄

– –

–

–

–

–

–

2

2

2

10

15

30 60

R3 R6

15 25

30 60

R3 R6

–

–

–

–

–

–

25

— Disconnect with class J fuse clips — for use with time delay/dual element class J fuses

200–208 V

230–240 V

460–480 V

575–600 V

Fuse clip (amps)

Fuse clip (amps)

Fuse clip (amps)

Fuse clip (amps)

NEMA size

Max Hp

Code

Max Hp

Code

Max Hp

Code

Max Hp

Code

0 1

3 5

30 30 60 60

J3 J3 J6 J6

3 5

30 30 60 60

J3 J3 J6 J6

5

30 30

J3 J3

5

30 30

J3 J3

10

10

7 1 ⁄

7

1 ⁄

– –

–

–

–

–

–

2

2

2

10

15

30 60

J3 J6

15 25

30 60

J3 J6

–

–

–

–

–

–

25

— 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 below.

— Optional ranges

— Solid state overload relay — standard range

NEMA size

200–208 V 575–600 V Max Hp Code Max Hp Code Max Hp Code Max Hp Code 230–240 V 460–480 V

OL amp range

0 and 1

2 – – – – G H

NEMA size OL range

0.4–0.85 0.8–1.7 1.6–3.4 3.2–6.8 6.5–13.5 13–27 25–50 17–35 35–70 65–135

C D E F G H

3 ⁄

D E

1 2 5

D E

0

0.8–1.7 1.6–3.4 3.2–6.8 6.5–13.5 6.5–13.5

–

–

–

–

4

1 ⁄

E F G

3 ⁄

E F G

2 3 5

2

4

1 3

2 3

F

F –

G G H H

–

7 1 ⁄

10

G

1

–

–

–

–

2

13–27 13–27 25–50

7 1 ⁄

H

7

1 ⁄

H

10 20 25

–

–

2

2

– – – –

J – – –

2

– J

–

– J

25

H

10

15

J

–

–

— Step 5 (digit 13) select auxiliary contacts

— Step 5 (digit 13) select auxiliary contacts (continued)

Aux contacts

Code

Aux contacts

Code

None

A B C D E F G H

3NO 3NC 4NO 4NC

J

1NO 1NC

K

L 2

M 2 N 2

1NO–1NC

2NO–2NC 3NO–1NC 1NO–3NC

2NO 2NC

P 2 R 2

2NO–1NC 1NO–2NC

2 Exceeds maximum number of contacts for some pilot light selections. See step 8 (digit 16) table, page 1-34.