Product Manual WHR-2 37
Table 20,Wire Sizing, WHR 085E - WHR 130E
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
208 338 169 203 308 155 184
085
230 60 330 159 203 292 135 184
460 167 80 103 147 68 93
575 133 60 85 117 54 74
208 365 203 203 331 184 184
090
230 60 365 203 203 331 184 184
460 185 103 103 167 93 93
575 153 85 85 133 74 74
208 339 180 180 297 158 158
095
230 60 339 180 180 297 158 158
460 171 91 91 148 79 79
575 143 76 76 120 64 64
208 362 193 193 313 167 167
100
230 60 362 193 193 313 167 167
460 182 97 97 157 84 84
575 143 76 76 127 68 68
208 423 227 227 383 206 206
110
230 60 402 215 215 349 187 187
460 209 112 112 175 94 94
575 157 84 84 140 75 75
208 471 227 227 383 206 206
115
230 60 441 215 215 349 187 187
460 232 112 112 175 94 94
575 168 84 84 140 75 75
208 519 227 275 436 206 259
120
230 60 480 215 255 387 187 225
460 255 112 135 194 94 113
575 179 84 95 155 75 90
208 535 275 275 498 259 259
130
230 60 498 255 255 425 225 225
460 260 135 135 213 113 113
575 186 95 95 170 90 90
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.
4. Supplemental overloads are used in conjunction with standard inherent overload protection. The supplemental overloads:
• Reduce wire sizing amps
• Add additional protection
• Lower compressor amperage
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