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33PKG-PRC010-EN
Electrical Data
Table ED-1. SCWB/SIWB/SCRB/SIRB Electrical Data
SCWB/SIWB SCRB/SIRB
Compressor Motor Data Compressor Motor Data Fan Motor Data SCWB/SIWB SCRB/SIRB
Qty. RLA LRA kW RLA LRA kW Qty/hp FLA LRA kW MCA MFS MCA MFS
208-230V 1 10.5 101 3.0 10.5 101 3.0 1/0.5 4.0 21 0.44 17 25 17 25
3 Ton 460V 1 4.2 51 3.0 4.2 51 3.0 1/0.5 1.0 6 0.44 6 15 6 15
575V - - - - - - - - - - - - - - -
208-230V 1 15.4 118 5.2 15.4 118 5.2 1/0.75 4.5 31 0.73 24 35 24 35
5 Ton 460V 1 10.0 71 5.2 10.0 71 5.2 1/0.75 1.4 8 0.73 14 20 14 20
575V 1 5.8 43 5.2 5.8 43 5.2 1/0.75 1.4 11 0.73 9 15 9 15
208-230V 1 25.9 164 7.5 24.7 164 7.5 1/1.0 3.7 22 1.1 36 60 35 50
7.5 Ton 460V 1 11.2 79 7.5 10.7 79 7.5 1/1.0 1.8 11 1.1 16 25 15 25
575V 1 8.4 63 7.5 8.4 63 7.5 1/1.5 1.8 16 1.1 12 20 12 20
208-230V 2 15.4 118 5.3 15.4 118 5.3 1/2.0 7.5 46 1.3 42 50 42 50
10 Ton 460V 2 10.0 71 5.3 10.0 71 5.3 1/2.0 3.4 23 1.3 26 35 26 35
575V 2 5.8 43 5.3 5.8 43 5.3 1/2.0 2.3 18 1.3 15 20 15 20
208-230V 2 25.9 164 7.5 24.7 164 7.5 1/3.0 10.6 72 1.9 69 90 66 90
15 Ton 460V 2 11.2 79 7.5 10.7 79 7.5 1/3.0 4.8 38 1.9 30 40 29 35
575V 2 8.4 63 7.5 8.4 63 7.5 1/3.0 3.3 23 1.9 22 30 22 30
Note: Fan motor kW base on three phase motors. Compressor kW based on 80/67°F to evaporator, nominal airflow, and 105ºF condensing temperature, 3 phase/60hz.
Electrical Data Calculations
RLA = Rated Load Amps
Compressor LRA = Locked Rotor Amps
Fan Motor LRA = Locked Rotor Amps,
N.E.C. Table 430 - 151
FLA = Full Load Amps, N.E.C.
Table 430 - 150
Voltage utilization range is ±10 percent
Determination of Minimum Circuit
Ampacity (MCA)
MCA = 1.25 x largest motor amps (FLA
or RLA) + the sum of the remaining motor
amps.
Determination of Maximum Fuse Size
(MFS) and Maximum Circuit Breaker Size
(MCB)
MFS and MCB = 2.25 x largest motor
amps (FLA or RLA) + the sum of the
remaining motor amps.
If the rating value determined does not
equal a standard current rating of over
current protective device, use the next
lower standard rating for the marked
maximum rating.
Note: MFS for CXRA units is for non-time
delay fuses.
Table ED-2. CCRA/CIRA Condenser Electrical Data
Unit Size Rated FLA LRA
Tons Voltage #Fans/HP (ea.) (ea.) kW MCA MFS
208-230 1/0.33 1.5 3.8 0.29 1.9 15
3 460 1/0.33 0.9 2.0 0.29 1.1 15
575 - -----
208-230 1/0.75 5.0 14.6 1.17 6.3 15
5 460 1/0.75 2.7 6.3 1.17 3.4 15
575 1/0.75 1.4 5.4 1.17 1.8 15
208-230 2/0.75 5.0 14.6 1.17 11.3 15
7.5 460 2/0.75 2.7 6.3 1.17 6.1 15
575 2/0.75 1.4 5.4 1.17 3.2 15
208-230 2/0.75 5.0 14.6 1.17 11.3 15
10 460 2/0.75 2.7 6.3 1.17 6.1 15
575 2/0.75 1.4 5.4 1.17 3.2 15
208-230 4/0.75 5.0 14.6 1.17 21.3 25
15 460 4/0.75 2.7 6.3 1.17 11.5 15
575 4/0.75 1.4 5.4 1.17 6.0 15
Note: Fan motor kW base on single phase motors. Compressor kW based on 80/67°F entering air to the evaporator,
nominal airflow, and 105ºF condensing temperature, single phase/60hz.