Table 3 — Electrical Data
UNIT
SIZE
50HS
V-Ph-Hz
COMPRESSOR OFM IFM
POWER SUPPLY
MOCP
RLA LRA FLA FLA MCA MAX
018 208/230-1-60 10.4 49.0 0.7 1.8 15.5 25
024 208/230-1-60 11.2 61.0 1.4 2.0 17.4 25
030
208/230-1-60 14.4 82.0 1.4 2.6 22.0 30
208/230-3-60 10.4 65.5 1.4 2.6 17.0 25
036
208/230-1-60 18.0 96.0 1.4 2.8 26.7 40
208/230-3-60 11.4 75.0 1.4 2.8 18.5 25
460-3-60 4.8 40.0 0.8 1.4 9.0 10
042
208/230-1-60 20.4 102.0 1.4 4.0 30.9 50
208/230-3-60 14.0 91.0 1.4 4.0 22.9 30
460-3-60 6.4 42.0 0.8 2.0 10.8 15
048
208/230-1-60* 24.4 140.0 2.1 5.0 40.1 60
208/230-1-60† 26.4 129.0 2.1 5.0 40.1 60
208/230-3-60* 14.1 105.0 2.1 5.0 25.9 35
208/230-3-60† 15.0 99.0 2.1 5.0 25.9 40
460-3-60* 7.1 55.0 1.1 2.3 13.7 15
460-3-60† 8.2 49.5 1.1 2.3 13.7 20
060
208/230-1-60* 28.9 165.0 2.1 6.2 48.4 60
208/230-1-60† 32.1 169.0 2.1 6.2 48.4 60
208/230-3-60* 16.0 125.0 2.1 6.2 32.4 40
208/230-3-60† 19.3 123.0 2.1 6.2 32.4 50
460-3-60* 8.0 66.0 1.1 3.2 16.8 20
460-3-60† 10.0 62.0 1.1 3.2 16.8 25
LEGEND
CSA — Canadian Standards Association
FLA — Full Load Amps
HACR — Heating, Air Conditioning and Refrigeration
IFM — Indoor-Fan Motor
LRA — Locked Rotor Amps
MCA — Minimum Circuit Amps
MOCP — Maximum Overcurrent Protection
(fuses or HACR-type circuit breaker)
NEC — National Electrical Code
OFM — Outdoor-Fan Motor
RLA — Rated Load Amps
*Carrier Scroll Compressor.
†Copeland Scroll Compressor.
NOTES:
1. In compliance with NEC requirements for multimotor and combi-
nation load equipment (refer to NEC Articles 430 and 440), the over-
current protective device for the unit shall be fuse or HACR breaker.
The CSA units may be fuse or circuit breaker.
2. Unbalanced 3-Phase Supply Voltage
Never operate a motor where a phase imbalance in supply voltage
is greater than 2%.
Use the following formula to determine the per-
cent of voltage imbalance.
% Voltage Imbalance
max voltage deviation from average voltage
= 100 x
average voltage
Example: Supply voltage is 460-3-60.
AB = 452 v
BC = 464 v
AC = 455 v
452 + 464 + 455
Average Voltage =
3
1371
=
3
= 457
Determine maximum deviation from average voltage.
(AB) 457 – 452 = 5 v
(BC) 464 – 457 = 7 v
(AC) 457 – 455 = 2 v
Maximum deviation is 7 v.
Determine percent of voltage imbalance.
7
% Voltage Imbalance = 100 x
457
= 1.53%
This amount of phase imbalance is satisfactory as it is below the
maximum allowable 2%.
IMPORTANT: If the supply voltage phase imbalance is more
than 2%, contact your local electric utility company immediately.
15
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