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Delta Three Phase 1342457 06-03-05 Service Manual Page 74

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Page view 73
June 2005
72
For more information visit: www.EatonElectrical.ca CAT.02.02.S.K.CD
XT IEC Power Control
Contactors, Starters and Overload Relays
Technical Data and Specifications
Table 109. AC Ratings (Continued)
At maximum permissible ambient temperature.
Example —
The transformer has a nominal current of 10A with an inrush current of 18 times the nominal current. So, the contactor must have an AC-3 current of
18/6 x 10A = 30A. Using an XTCE032C (32A AC-3) contactor is recommended.
Description XTCE185L XTCE225L XTCE250L XTCE300M XTCE400M XTCE500M XTCE580N
AC-1 Operation
Conventional Free Air Thermal Current,
3-Pole, 50 – 60 Hz
at 40°C (I
th
)
at 50°C (I
th
)
at 55°C (I
th
)
at 60°C (I
th
)
337
301
287
275
386
345
329
315
429
383
366
350
490
438
418
400
612
548
522
500
857
767
731
700
980
876
836
800
Conventional Free Air Thermal Current,
1-Pole (I
th
)
685 785 875 1000 1250 1750 2000
AC-3 Operation
Rated Operational Current, 50/60 Hz
(I
e
)
in amperes
220/230V
240V
380/400V
415V
440V
500V
660/690V
1000V
185
185
185
185
185
185
185
76
225
225
225
225
225
225
225
76
250
250
250
250
250
250
250
76
300
300
300
300
300
300
300
95
400
400
400
400
400
400
400
95
500
500
500
500
500
500
500
95
580
580
580
580
580
580
580
435
Rated power (P) in kilowatts
220/230V
240V
380/400V
415V
440V
500V
660/690V
1000V
55
62
90
110
115
132
175
108
70
75
110
132
142
160
215
108
75
85
132
148
157
180
240
108
90
100
160
180
190
215
286
132
125
132
200
240
255
290
344
132
155
170
250
300
345
360
344
132
185
200
315
348
370
420
560
600
AC-4 Operation
Rated Operational Current, 50/60 Hz
(I
e
)
in amperes
220/230V
240V
380/400V
415V
440V
500V
660/690V
1000V
136
136
136
136
136
136
136
76
164
164
164
164
164
164
164
76
200
200
200
200
200
200
200
76
240
240
240
240
240
240
240
95
296
296
296
296
296
296
296
95
360
360
360
360
360
360
296
95
456
456
456
456
456
456
456
348
Rated power (P) in kilowatts
220/230V
240V
380/400V
415V
440V
500V
660/690V
1000V
41
45
75
80
85
96
127
108
51
54
90
96
102
116
155
108
62
68
110
117
125
143
189
108
75
82
132
142
151
172
229
132
92
101
160
176
186
214
283
132
112
122
200
216
229
260
344
132
143
156
250
274
290
330
440
509
AC-6A Operation
Transformer Loads Values are application specific. Calculation is I
e
AC-3
= X / 6 * I
e Transformer where X is the inrush current of the
transformer and
I
e Transformer is the nominal current.
AC-6B Operation
Capacitor Loads
Individual compensation rated operational cur-
rent I
e
of three-phase capacitors in amperes
Up to 525V
690V
220
133
220
133
220
133
307
177
307
177
307
177
463
265
Maximum inrush current peak (x I
e
)30303030303030
Component Lifesaving (Operations) 100,000 100,000 100,000 100,000 100,000 100,000 100,000
Maximum Operating Frequency (ops/hr) 200 200 200 200 200 200 200
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