Specifications

Single-point Connection, Optional
Table 14, WMC 145D, 150D Electrical Data
Field Wire RLA
Minimum Circuit
LRA
Max Fuse Size
(Per Compressor)
Ampacity (MCA)
Quantity Wire GA
52 to 53 Amps 72 117 to 120 3 1 GA 150 Amps
54 to 57 Amps 72 122 to 129 3 1 GA 175 Amps
58 to 61 Amps 72 131 to 138 3 1/0 175 Amps
62 to 65 Amps 72 140 to 147 3 1/0 200 Amps
68 to 69 Amps 94 153 to 156 3 2/0 200 Amps
70 to 76 Amps 94 158 to 171 3 2/0 225 Amps
77 to 85 Amps 94 174 to 192 3 3/0 250 Amps
89 to 92 Amps 124 201 to 207 3 4/0 250 Amps
93 to 102 Amps 124 210 to 230 3 4/0 300 Amps
103 to 107 Amps 124 232 to 241 3 250 300 Amps
108 to 113 Amps 124 243 to 255 3 250 350 Amps
NOTE: Total Unit – 2 Compressors per Unit (RLA Per Compressor)
Single Point and Multi-point Connection
Table 15, WMC 145D, 150D Single and Multi-Point Connections
Single Point Connection
RLA (Per Compressor) Multi-Point Connection
Type of Connection → Disconnect Switch only
Power Block Disconnect Switch
52 to 65 Amps 100 Amps
68 to 85 Amps 150 Amps 335 Amps 400 Amps
89 to 113 Amps 175 Amps
See Note 1 See Note 2 See Note 2
NOTES:
1. Disconnect Switch will also be a Circuit Breaker.
2. Circuit Breaker in each circuit after Power Block or Molded Disconnect Switch.
WMC250D and 290D Dual Compressor
Multi-Point Connection, Standard
Field Wire RLA
Minimum Circuit
LRA
Max Fuse Size
(Per Compressor)
Ampacity (MCA)
Quantity Wire GA
72 to 77 Amps 110 90 to 96 3 3 GA 150 Amps
78 to 80 Amps 110 97 to 100 3 3 GA 175 Amps
81 to 88 Amps 110 101 to 110 3 2 GA 175 Amps
89 to 92 Amps 110 111 to 115 3 2 GA 200 Amps
93 to 99 Amps 110 116 to 123 3 1 GA 200 Amps
100 Amps 110 125 3 1 GA 225 Amps
101 to 104 Amps 132 126 to 130 3 1 GA 225 Amps
105 to 111 Amps 132 131 to 138 3 1/0 225 Amps
112 to 120 Amps 132 140 to 150 3 1/0 250 Amps
121 to 133 Amps 154 151 to 166 3 2/0 250 Amps
134 to 140 Amps 154 167 to 175 3 2/0 300 Amps
141 to 150 Amps (1) 165 176 to 187 3 3/0 300 Amps
NOTES:
1. 50 Hz TT-400 Compressor only
2. Each Circuit – 1 Compressor per Circuit
Catalog WMC-4 35