Specifications

TECHNICAL DATA (AHTR Electric Heaters only) Single Phase w/ Circuit Breaker
Heater Model
Supply
Voltage
Heat
kW
Supply
Circuit
Number
Heater
kW Per
Circuit
FLA
Total
AMPS
MCA
Min
Circuit
Ampacity
Maximum
Over-
Current
Protective
Device
(AMPS.)
Recommended
Supply Wire
75°C. Copper
Ground
Wire
# of
Wires
Wire
Size
Max
Length
(Ft)
# of
wires
Min
Size
AHTR101B
240 10 Single 5 41.7 52.1
60
2 6 101 1 10
208 7.5 Single 3.75 36.1 45.1 2 6 115 1 10
AHTR151B*
240
15
Mult. 1 5 20.8 26.0 30 2 10 118 1 10
240 Mult. 2 10 41.7 52.1 60 2 6 101 1 10
208
11.25
Mult. 1 3.75 18.0 22.5 30 2 10 118 1 10
208 Mult. 2 7.5 36.1 45.1 60 2 6 101 1 10
AHTR201B**
240
20
Mult. 1 10 41.6 52.0 60 2 6 101 1 10
240 Mult. 2 10 41.6 52.0 60 2 6 101 1 10
208
15
Mult. 1 7.5 48.1 60.0 60 2 6 101 1 10
208 Mult. 2 7.5 48.1 60.0 60 2 6 101 1 10
* Not recommended for size 024.
** Not recommended for sizes 024-036.
18
Roth RXT Series Catalog - August 2010
Electrical Data:
Auxiliary Heater Electrical Data