Technical Guide

635425-YTG-D-0413
Johnson Controls Unitary Products 5
* May be 0 (no breaker) or 1 (with breaker).
* May be 0 (no breaker) or 1 (with breaker).
MX20D
4HK*6500806 0.5 Lo/#5 5.6 7.5 19.2 25.6 2.8 3.75 5.6 7.5 5.6 7.5
4HK*6501006 0.5 Lo/#5 7.2 9.6 24.6 32.8 3.6 4.8 7.2 9.6 7.2 9.6
4HK16501306 0.5 Lo/#5 9.8 13 33.3 44.4 3.3 4.3 6.5 8.6 9.8 13
4HK16501506 0.5 Lo/#5 10.8 14.4 36.9 49.1 3.6 4.8 7.2 9.6 10.8 14.4
4HK16501806 0.5 Lo/#5 13.2 17.6 45.1 60.1 3.3 4.4 6.6 8.8 13.2 17.6
4HK16502006 0.5 Lo/#5 14.4 19.2 49.2 65.5 3.6 4.8 7.2 9.6 14.4 19.2
4HK16502506 0.5 Lo/#5 18 24 61.5 81.9 3.6 4.8 10.8 14.4 18 24
1. See conversion Table 10.
Electrical Data - 1 Ø - 208/230-1-60
Models
Heater
Models*
Max.
Static
Min.
Speed Tap
Total Heat
1
kW Staging
kW MBH W1 Only W2 Only W1 & W2
208v 230v 208v 230v 208v 230v 208v 230v 208v 230v
Electrical Data - (For Single Source Power Supply) - Copper Wire 1 Ø - 208/230-1-60
Models
Heater
Models*
Heater
Amps
240V
Field Wiring
Min. Circuit Ampacity
Max. O.C.P.
Amps/Type
1
75°C Wire Size - AWG
208V 230V 208V 230V 208V 230V
MX12B
4HK*6500506 20 25.1 28.5 30 30 10 10
4HK*6500806 31.3 37.1 42.6 40 45 8 8
4HK*6501006 40 46.7 53.5 50 60 8 6
4HK16501306 54.2 62.1 71.2 70 80 4 4
4HK165N1506 60 68.4 78.5 80 90 4 3
MX12D
4HK*6500506 20 25.1 28.5 30 30 10 10
4HK*6500806 31.3 37.1 42.6 40 45 8 8
4HK*6501006 40 46.7 53.5 50 60 8 6
4HK16501306 54.2 62.4 71.2 70 80 4 4
4HK16501506 60 68.4 78.5 80 90 4 4
4HK16501806 73.3 82.9 95.1 90 100 3 3
4HK16502006 80 90 103.5 100 110 3 2
MX16C
4HK*6500506 20 26.8 30.1 30 35 10 10
4HK*6500806 31.3 38.8 43.6 40 50 8 8
4HK*6501006 40 48.4 54.5 50 60 8 6
4HK16501306 54.2 64 72.8 70 80 4 4
4HK16501506 60 70 79.5 80 90 4 4
4HK16501806 73.3 84.5 96.1 90 100 3 3
4HK16502006 80 91.6 104.5 100 110 3 2
MX20D
4HK*6500806 31.3 41.2 46.6 45 50 8 8
4HK*6501006 40 50.8 57.5 60 60 8 6
4HK16501306 54.2 66.4 75.2 70 80 4 4
4HK16501506 60 72.4 82.5 80 90 4 4
4HK16501806 73.3 86.9 99.1 90 110 3 3
4HK16502006 80 94.1 107.5 100 110 3 2
4HK16502506 100 115.7 132.5 125 150 1 1/0
1. O.C.P. = Over Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse.