38 Product Manual WHR-2
Table 21, Wire Sizing Amps, WHR 145E - WHR 210E
w/o Supplemental Overloads (1) w/ Supplemental Overloads (1)
Minimum Circuit Ampacity (MCA) Minimum Circuit Ampacity (MCA)
Multiple Point Power
Supply(3)
Multiple Point Power
Supply(3)
Unit
Size
Voltage
3-Phase
Freq.
(Hz)
Single Point
Power
Supply(2)
Circuit 1 Circuit 2
Single Point
Power
Supply(2)
Circuit 1 Circuit 2
208 535 275 291 500 259 270
230 60 498 255 272 435 225 235
145
460 260 135 135 218 113 118
575 186 95 102 174 90 94
208 574 304 304 527 279 279
230 60 540 286 286 459 243 243
155
460 272 144 144 230 122 122
575 204 108 108 183 97 97
208 635 338 338 578 308 308
230 60 619 330 330 547 292 292
165
460 313 167 167 275 147 147
575 249 133 133 219 117 117
208 725 388 388 644 344 344
230 60 709 380 380 612 328 328
175
460 326 174 174 306 164 164
575 258 138 138 246 132 132
208 689 365 365 625 331 331
230 60 689 365 365 625 331 331
185
460 349 185 185 315 167 167
575 289 153 153 251 133 133
208 779 415 415 661 367 367
230 60 779 415 415 661 367 367
195
460 362 192 192 346 184 184
575 298 158 158 278 148 148
208 859 455 455 748 396 396
230 60 859 455 455 748 396 396
210
460 374 198 198 374 198 198
575 306 162 162 302 160 160
NOTES:
1. Unit wire sizing amps are equal to 125% of the largest compressor-motor RLA plus 100% of RLA of all other loads in the circuit including
control transformer. Wire size amps for separate 115V control circuit power is 11 amps.
2. Single point power supply requires a single fused disconnect to supply electrical power to the unit.
3. Multiple point power supply requires three independent power circuits with separate fused disconnects. (Two compressor circuits,
one control circuit) and is a factory special.
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