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Air Handler Electric Heat Data / Page 18
ELECTRIC HEAT DATA CBA27UHE-042 | THREE PHASE
Electic Heat
Model Number
No. of
Stages
Input
2
Blower
Motor
Full
Load
Amps
3
Minimum
Circuit
Ampacity
5
Maximum
Overcurrent
Protection
Single Point
Power Source
Volts kW
1
Btuh Ckt 1 Ckt 2 Ckt 1 Ckt 2
3
Minimum
Circuit
Ampacity
5
Maximum
Overcurrent
Protection
8 kW
5 lbs.
ECB29-8 (19F24)
Terminal block
1 208 6.0 20,500 7.6 30 - - - 30 - - - - - - - - -
220 6.7 22,900 7.6 33 - - - 35 - - - - - - - - -
230 7.3 25,100 7.6 33 - - - 35 - - - - - - - - -
240 8.0 27,300 7.6 33 - - - 35 - - - - - - - - -
10 kW
6 lbs.
ECB29-10 (19F27)
Terminal Block
1 208 7.5 25,600 7.6 36 - - - 40 - - - - - - - - -
220 8.4 28,700 7.6 40 - - - 40 - - - - - - - - -
230 9.2 31,400 7.6 40 - - - 40 - - - - - - - - -
240 10.0 34,100 7.6 40 - - - 40 - - - - - - - - -
15 kW
12 lbs.
ECB29-15CB (19F28)
50A Circuit breaker
1 208 11.3 38,400 7.6 49 - - - 50 - - - - - - - - -
220 12.6 43,000 7.6 55 - - -
4
60 - - - - - - - - -
230 13.5 47,000 7.6 55 - - -
4
60 - - - - - - - - -
240 15.0 51,200 7.6 55 - - -
4
60 - - - - - - - - -
20 kW
19 lbs.
ECB29-20CB (19F29)
(2) 35A Circuit breaker
2 208 15.0 51,200 7.6 36 26
4
40
4
30 62 70
220 16.8 57,300 7.6 40 30
4
40
4
30 70 70
230 18.4 62,700 7.6 40 30
4
40
4
30 70 70
240 20.0 68,200 7.6 40 30
4
40
4
30 70 70
25 kW
19 lbs.
ECB29-25CB (19F30)
(2) 45A Circuit breaker
2 208 18.8 64,100 7.6 42 33
4
50
4
35 62 70
220 21.0 71,700 7.6 47 38
4
50
4
40 85 90
230 23.0 78,300 7.6 47 38
4
50
4
40 85 90
240 25.0 85,300 7.6 47 38
4
50
4
40 85 90
NOTE - Circuit 1 Minimum Circuit Ampacity includes the Blower Motor Full Load Amps.
1
Electric heater capacity only - does not include additional blower motor heat capacity.
2
Amps shown are for blower motor only.
3
Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167°F.
4
Bold indicates that the circuit breaker on “CB” circuit breaker models must be replaced with size shown. See table on Page 1.
5
HACR type circuit breaker or fuse.
6
Blower motor is rated at 460V.