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IB01602015E
Instruction Booklet
Page
36
Effective: August 2010
ATC-300 2-Position Contactor
Based Transfer Switch
OVERVOLTAGE PICKUP / DROPOUT TABLE
PERCENTAGE
VOLTAGE
120
208
220
240
380
415
480
600
120
144
250
264
288
456
498
576
720
119
143
248
262
286
452
494
571
714
118
142
245
260
283
448
490
566
708
117
140
243
257
281
445
486
562
702
116
139
241
255
278
441
481
557
696
115
138
239
253
276
437
477
552
690
114
137
237
251
274
433
473
547
684
113
136
235
249
271
429
469
542
678
112
134
233
246
269
426
465
538
672
111
133
231
244
266
422
461
533
666
110
132
229
242
264
418
457
528
660
Dropout
109
131
227
240
262
414
452
523
654
108
130
225
238
259
410
448
518
648
107
128
223
235
257
407
444
514
642
106
127
220
233
254
403
440
509
636
105
126
218
231
252
399
436
504
630
Pickup
UNDERFREQUENCY PICKUP / DROPOUT TABLE
PERCENTAGE
FREQUENCY
50
60
97
49
58
96
48
58
95
48
57
Pickup
94
47
56
93
47
56
92
46
55
91
46
55
90
45
54
Dropout
OVERFREQUENCY PICKUP / DROPOUT TABLE
PERCENTAGE
FREQUENCY
50
60
110
55
66
109
55
65
108
54
65
107
54
64
106
53
64
105
53
63
Dropout
104
52
62
103
52
62
102
51
61
Pickup