Specifications

31
Table 6B — Unit Electrical Data, 30HXA Units (cont)
LEGEND
NOTES:
1. Each main power source must be supplied from a field-supplied fused
electrical service with a (factory-installed or field-installed) disconnect
located in sight from the unit.
2. Control circuit power must be supplied from a separate source
through a field-supplied disconnect (except for 380/415-50 units). An
accessory control transformer may be used to provide control circuit
power from the main unit power supply.
3. Maximum incoming wire size for each terminal block is 500 kcmil.
4. Maximum allowable phase imbalance is: voltage, 2%; amps, 5%.
5. Use copper conductors only.
6. The MOCP is calculated as follows:
MOCP = (2.25) (largest RLA) + the sum of the other RLAs. Size the
fuse one size down from the result. The RLAs are listed on the name-
plate.
The recommended fuse size in amps (RFA) is calculated as follows:
RFA = (1.50) (largest RLA) + the sum of the other RLAs. Size the fuse
one size up from the result. The RLAs are listed on the nameplate.
UNIT
30HXA
UNIT VOLTAGE
POWER
SUPPLY
QTY. REQD.
NO. POWER
SUPPLY
CONDUCTORS
UNIT VOLTAGE CONTROL CIRCUIT
V-Hz
(3 Ph)
Supplied
MCA MOCP
ICF Rec Fuse Size V-Hz
(Single
Ph)
Supplied MCA
and
MOCP
Min Max XL WD XL WD Min Max
186
230-60 207 253 1 6 707.9 1000 — 1057.6 — 800 115-60 104 127 15
208/230-60 115-60 104 127 15
Ckt A 187 253 1 6 437.0 700 — 743.0 — 600
Ckt B 187 253 1 6 437.0 700 — 743.0 — 600
460-60 414 506 1 3 355.3 500 1332.9 528.9 400 400 115-60 104 127 15
575-60 518 633 1 3 284.0 400 1066.2 423.2 350 350 115-60 104 127 15
380-60 342 418 1 6 430.2 600 1490.2 601.2 500 500 230-60 207 254 15
380/415-50 342 440 1 6 452.7 600 1466.2 601.2 600 600 230-50 198 254 15
230-50 207 253 1 6 747.7 1000 — 970.3 — 1000 230-50 207 254 15
206
230-60 115-60 104 127 15
Ckt A 207 253 1 6 468.6 700.0 — 726.8 — 600
Ckt B 207 253 1 3 379.8 600.0 — 743.0 — 500
208/230-60 115-60 104 127 15
Ckt A 187 253 1 6 520.6 800.0 — 743.0 — 600
Ckt B 187 253 1 6 422.0 700.0 — 743.0 — 600
460-60 414 506 1 6 400.1 500.0 1377.7 573.7 450 450 115-60 104 127 15
575-60 518 633 1 3 319.9 400.0 1102.1 459.1 400 400 115-60 104 127 15
380-60 342 418 1 6 484.4 600.0 1544.4 655.4 600 600 230-60 207 254 15
380/415-50 342 440 1 6 505.2 700.0 1518.7 653.7 600 600 230-50 198 254 15
230-50 230-50 207 254 15
Ckt A 207 253 1 6 486.0 700.0 — 771.0 — 600
Ckt B 207 253 1 6 415.4 700.0 — 638.0 — 500
246
230-60 115-60 104 127 15
Ckt A 207 253 1 6 592.1 800.0 — 955.3 — 700
Ckt B 207 253 1 3 379.8 600.0 — 743.0 — 500
208/230-60 115-60 104 127 15
Ckt A 187 253 1 6 657.9 800.0 — 978.9 — 800
Ckt B 187 253 1 6 422.0 700.0 — 743.0 — 600
460-60 414 506 1 6 461.9 600.0 1439.5 635.5 600 600 115-60 104 127 15
575-60 518 633 1 3 369.1 450.0 1151.3 508.3 450 450 115-60 104 127 15
380-60 342 418 1 6 559.2 700.0 1619.2 730.2 700 700 230-60 207 254 15
380/415-50 342 440 1 6 586.1 700.0 1599.6 734.6 700 700 230-50 198 254 15
230-50 230-50 207 254 15
Ckt A 207 253 1 6 635.7 800.0 — 858.3 — 800
Ckt B 207 253 1 6 415.4 700.0 — 638.0 — 500
261
230-60 115-60 104 127 15
Ckt A 207 253 1 6 638.0 800.0 — 1001.2 — 800
Ckt B 207 253 1 3 379.8 600.0 — 743.0 — 500
208/230-60
Ckt A 187 253 1 6 708.9 1000.0 — 1029.9 — 800 115-60 104 127 15
Ckt B 187 253 1 6 422.0 700.0 — 743.0 — 600
460-60 414 506 1 6 484.9 600.0 1462.5 658.5 600 600 115-60 104 127 15
575-60 518 633 1 6 387.6 500.0 1169.8 526.8 450 450 115-60 104 127 15
380-60 342 418 1 6 587.1 700.0 1647.1 758.1 700 700 230-60 207 254 15
380/415-50 342 440 1 6 614.4 800.0 1627.9 762.9 700 700 230-50 198 254 15
230-50 230-50 207 254 15
Ckt A 207 253 1 6 682.6 1000.0 — 905.2 — 800
Ckt B 207 253 1 6 415.4 700.0 — 638.0 — 500
271
230-60 115-60 104 127 15
Ckt A 207 253 1 6 683.6 800.0 — 1046.8 — 800
Ckt B 207 253 1 3 379.8 600.0 — 743.0 — 500
208/230-60
Ckt A 187 253 1 6 759.6 1000.0 — 1080.6 — 1000 115-60 104 127 15
Ckt B 187 253 1 6 422.0 700.0 — 743.0 — 600
460-60 414 506 1 6 513.2 600.0 1490.8 686.8 600 600 115-60 104 127 15
575-60 518 633 1 6 410.2 500.0 1192.4 549.4 450 450 115-60 104 127 15
380-60 342 418 1 6 621.4 800.0 1681.4 792.4 700 700 230-60 207 254 15
380/415-50 342 440 1 6 653.9 800.0 1667.4 802.4 800 800 230-50 198 254 15
230-50 230-50 207 254 15
Ckt A 207 253 1 6 747.7 1000.0 — 970.3 — 1000
Ckt B 207 253 1 6 415.4 700.0 — 638.0 — 500
ICF — Maximum Instantaneous Current Flow during start-up (the
point in the starting sequence where the sum of the LRA for
the start-up compressor, plus the total RLA for all running
compressors is at a maximum)
LRA — Locked Rotor Amps
MCA — Minimum Circuit Ampacity (for wire sizing)
MOCP — Maximum Overcurrent Protection
RLA — Rated Load Amps
WD — Wye-Delta Start
XL — Across-the-Line Start