Control_Flippingbook_NOV 2024

NEMA FULL VOLTAGE POWER DEVICES, CONTROL SECTION 1

1-95

— Enclosed combination magnetic starters CR494 2-speed/2-winding, instantaneous trip circuit breaker

Ordering code configuration Valid for NEMA sizes 0–4

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 ranges table below.

— 2-speed solid state overload ranges

NEMA size

0 and 1 Lo amp 0.4–0.85 0.4–0.85 0.4–0.85 0.8–1.7 1.6–3.4 0.8–1.7 1.6–3.4 3.2–6.8 1.6–3.4 3.2–6.8 6.5–13.5 3.2–6.8 6.5–13.5 0.8–1.7

2

3 and 4 Lo amp

Code

Hi amp

Hi amp 6.5–13.5

Lo amp 6.5–13.5 6.5–13.5

Hi amp 17–35 35–70 35–70 65–135 65–135 65–135

c

0.4–0.85 0.8–1.7 0.8–1.7 1.6–3.4 1.6–3.4 1.6–3.4 3.2–6.8 3.2–6.8 3.2–6.8 6.5–13.5 6.5–13.5 6.5–13.5

17–35 17–35 35–70 17–35 35–70

D E

13–27 13–27 25–50 25–50 25–50

13–27

F

6.5 -13.5

G H U K

13–27 25–50

65–135

– – – – – – – – –

– – – – – – – – –

– – – – – – – – –

– – – – – – – – –

L

M

V

W

R S T

13–27 13–27 13–27

13–27

— Step 6 (digit 14) select monitoring options Device

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

Code

Code

None A Phase failure relay with undervoltage protection (panel mounted) — 190–480 V (PFR with UV) C Phase failure relay with undervoltage protection (panel mounted) — 575 V (PFR with UV) D Phase failure relay — 208 V (PFR) E 3 Phase failure relay — 240 V (PFR) F 3 Phase failure relay — 480 V (PFR) G 3 Phase failure relay — 575 V (PFR) H 3 Elapsed time meter (120 V/60 Hz) wired across coil (ETM) 1 4 ETM + PFR with UV (190–480 V) L 4 ETM + PFR with UV (575 V) N 4 ETM + PFR (208 V) P 3,4 ETM + PFR (240 V) Q 3,4 ETM + PFR (480 V) R 3,4 ETM + PFR (575 V) S 3,4 3 Available for type 1 enclosure only. 4 Requires 120 V control circuit voltage or CPT with 120 V secondary.

None 1 NO 1 NC

A B C

1 NO–1 NC

D 2 E 2 F 2

2 NO 2 NC

2 Not available on 2 speed – 2 winding sizes 0-1.