Instruction Leaflet
Page
4
Effective: February 2002
Series CEP7
Solid State Overload Relay
© 2002 Eaton Corporation
All Rights Reserved
Printed in USA
Publication No. IL04303001E
February 2002
CEP7 Application with (3) Current Transformers — Adjustment Guidelines
Current Transformers to be used with CEP7 Solid State Relays for Size 5 starters and above.
Setting the Overload Relay
1. Select
Table 2
,
3
or
4
depending on the Current Transformer (CT) ratio being utilized.
2. Select the “Equivalent FLA,” which most closely matches the motor FLA, then set the overload relay dial to the
corresponding “Dial Set Position.”
Note:
The motor FLA may not exactly match the value in the Equivalent FLA column.
3. The overload relay dial settings are calculated as:
Set Value = Dial Set Position/1/(CT Ratio) = Equivalent FLA
.
Example: CT Ratio is 300:5, motor FLA is 240A, set overload Dial Set Position at 4.0;
Set Value = 4.0/(1/60) = 240
.
Table 2. CT Ratio = 300:5 (Size 5 Starters)
Note:
Overload = CEP7-M32-5-20.
Range 1.6...5.0 (amperes).
Table 3. CT Ratio = 600:5 (Size 6 Starters)
Note:
Overload = CEP7-M32-5-20.
Range 1.6...5.0 (amperes).
Table 4. CT Ratio = 1000:5 (Size 7 Starters)
Note:
Overload = CEP7-M32-5-20.
Range 1.6...5.0 (amperes).
Dial Set
Position Equivalent
FLA
1.6
1.7
1.8
96
102
108
1.9
2.0
2.1
114
120
126
2.2
2.3
2.4
132
138
144
2.5
2.6
2.7
150
156
162
2.8
2.9
3.0
168
174
180
3.5
4.0
4.5
5.0
210
240
270
300
Dial Set
Position Equivalent
FLA
1.6
1.7
1.8
192
204
216
1.9
2.0
2.1
228
240
252
2.2
2.3
2.4
264
276
288
2.5
2.6
2.7
300
312
324
2.8
2.9
3.0
336
348
360
3.5
4.0
4.5
5.0
420
480
540
600
Dial Set
Position Equivalent
FLA
1.6
1.7
1.8
320
340
360
1.9
2.0
2.1
380
400
420
2.2
2.3
2.4
440
460
480
2.5
2.6
2.7
500
520
540
2.8
2.9
3.0
560
580
600
3.5
4.0
4.5
5.0
700
800
900
1000
Eaton Corporation
Cutler-Hammer business unit
1000 Cherrington Parkway
Moon Township, PA 15108-4312
USA
tel: 1-800-525-2000
www.cutler-hammer.com
