Control_Flippingbook_July 2024

1-43

NEMA FULL VOLTAGE POWER DEVICES, CONTROL SECTION 1

— CR307 magnetic starters Nonreversing, combination, thermal magnetic circuit breaker type

Part number configuration Valid for NEMA sizes 0-2, type 1 standard enclosure

— 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

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 push button/selector switch

— Step 6 (digit 14) select monitoring options

— Step 5 (digit 13) select auxiliary contacts

Device None 2

Code

Aux contacts

Code

Push button/selector switch — heavy duty

Code

A

None

A B C D E F G H

None

A

1NO 1NC

Start/stop push button

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. See page 1-45.

H and-off-auto (HOA) selector switch

L

1NO–1NC

Off-on selector switch

M

2NO 2NC

HOA SS and start push button

S

Keyed HOA SS, key removal center pos.

N

2NO–1NC 1NO–2NC

3NO 3NC 4NO 4NC

J

K

L 1

M 1 N 1

2NO–2NC 3NO–1NC 1NO–3NC

P 1

R 1 1 Exceeds maximum number of contacts for some pilot light selections. See step 8 (digit 16) table, page 1-44.