Eaton Cutler-Hammer ATC-300 - Overvoltage Pickup; Dropout Table; Underfrequency Pickup; Dropout Table; Overfrequency Pickup; Dropout Table

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Instruction Booklet
Page 36 Effective: April 2006
ATC-300 Automatic
Transfer Switch Controller
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 Dropout
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 Pickup
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
UNDERFREQUENCY PICKUP / DROPOUT TABLE
PERCENTAGE FREQUENCY
50 60
97 49 58
96 48 58 Pickup
95 48 57
94 47 56 Dropout
93 47 56
92 46 55
91 46 55
90 45 54
OVERFREQUENCY PICKUP / DROPOUT TABLE
PERCENTAGE FREQUENCY
50 60
110 55 66
109 55 65
108 54 65
107 54 64
106 53 64 Dropout
105 53 63
104 52 62 Pickup
103 52 62