Control_Flippingbook_NOV 2024

NEMA FULL VOLTAGE POWER DEVICES, CONTROL SECTION 1

1-31

— Enclosed combination magnetic starters CR307 non-reversing, thermal magnetic circuit breaker

Ordering code configuration Valid for NEMA sizes 0–2, type 1 standard enclosure

Digits:

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

C R

Steps:

Step 1

Step 2

Step 3

Step 4 Step 5 Step 6 Step 7 Step 8 Step 9

To configure the ordering code, use the tables below to fill in the digit boxes with the appropriate code.

— Step 4 (digit 12) select overload relay Overload relay Thermal bi-metallic ambient compensated (1 NC) Thermal bi-metallic ambient compensated (1 NO–1 NC)

Code

3 4

Solid state overload (1 NO–1 NC)

(#)

(#) 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

230–240 V

460–480 V

575–600 V

OL amp range

0 and 1

2

NEMA size OL range

Max. hp

Code Max. hp

Code Max. hp

Code Max. hp

Code

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

– – – –

0

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

–

–

–

–

3/4

D E

1 2 5

D E

1 ⁄

E F G

3 ⁄

E F G

2 3 5

2

4

1 3

2 3

F

F –

G G H H

–

G 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

–

25

H

10

15

J

J

–

–

— Step 7 (digit 15) select pushbutton/ selector switch Pushbutton/selector switch — heavy duty

— Step 6 (digit 14) select monitoring options Device

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

Code

Code

Code

A

None 1 NO 1 NC

A B C D E F G H

None 2

None

A

Start/stop pushbutton

J

2 Phase failure relay is not available for CR307 series standard enclosures. If this is required for your application, use CR407 series oversized enclosure.

Hand-off-auto (HOA) selector switch

L

1 NO–1 NC

Off-on selector switch

M

2 NO 2 NC

HOA selector switch and start pushbutton Keyed HOA selector switch, key removal center pos.

S

N

2 NO–1 NC 1 NO–2 NC

3 NO 3 NC 4 NO 4 NC

J

K

L 1

M 1 N 1

2 NO–2 NC 3 NO–1 NC 1 NO–3 NC

P 1

R 1 1 Exceeds maximum number of contacts for some pilot light selections. See step 8 (digit 16)