01-5800-7N0012/-
05/2019-EHT-432712
Notice
Technical data subject to change without notice.
No claims for damage arising from alternations, errors or misprints shall be allowed.
Page 9 / 46
Step 3: Choose a trace heater family
Determine the requirements for your trace heating application:
▪
Maximum exposure temperature (power on / power off)
▪
Minimum operation / installation temperature
▪
Required heat output to compensate for the effective heat loss as calculated in
Step 2
▪
Required temperature class (“T
-
Rating”)
Select the trace heater family that meets your requirements using the following table:
Table C: Trace heater family selection
PSB
MSB
HSB
HTSB
Maximum exposure temperature
power on
65 °C
110 °C
120 °C
250 °C
Maximum withstand temperature
power off
85 °C
130 °C
200 °C
250 °C
Minimum operation temperature
-40 °C
-40 °C
-60 °C
-65 °C
Minimum installation temperature
-55 °C
-50 °C
-60 °C
-40 °C
Power output
4
10, 15, 26, 33 W/m
10, 15, 30, 40 W/m
10, 15, 30, 45, 60 W/m
15, 30, 45, 60, 75 W/m
Supply voltage
110 to 120 Vac / 208 to 254 Vac 208 to 254 Vac
110 to 120 Vac / 208 to 254 Vac
110 to 120 Vac / 208 to 277 Vac
Braid resistance /
Minimum percent coverage
< 18.2 Ω/km /
> 70 %
< 18.2 Ω/km /
> 70 %
< 18.2 Ω/km /
> 70 %
< 18.2 Ω/km /
> 70 %
Braid material
Tinned copper
Nickel-plated copper
Nickel-plated copper
Nickel-plated copper
Minimum bending radius
25 mm
(Do not bend on the narrow axis.)
25 mm
(Do not bend on the narrow axis.)
25 mm
(Do not bend on the narrow axis.)
35 mm
(Do not bend on the narrow axis.)
Cable weight
10.9 kg/100 m
12.5 kg/100 m
12.5 kg/100 m
14.6 kg/100 m
Heater
dimensions
fluoropolymer
outer jacket
polyolefin outer
jacket
11.6 x 5.6 mm
10.2 x 4.8 mm
10.2 x 4.8 mm
12.1 x 5.4 mm
11.8 x 5.8 mm
n/a
n/a
n/a
Temperature classes
5
10, 15
W/m → T6
26,
33 W/m → T5
10, 15, 25
W/m → T4
30, 40 W/m → 150
°C (T3)
15, 30, 45
W/m → T3
60 W/m → 200
°C (T2)
15, 30, 45, 60 W/m → T3
75 W/m → T2
Protection classification
II 2G Ex e IIC T5, T6 Gb
II 2D Ex tb IIIC T95°C, T 80°C Db
II 2G Ex e IIC 150°C (T3), T4 Gb
II 2D Ex tb IIIC T150°C, T130°C Db
II 2G Ex e IIC 200°C (T2), T3, T4 Gb
II 2D Ex tb IIIC T200°C, T195°C, T130°C Db
II 2G Ex e IIC, T2, T3 Gb
II 2D Ex t IIIC T200°C, T300°C, IP 6x Db
NOTICE
If you want to use plastic piping within your installation, contact your local BARTEC distributor for verification that the design does not exceed the
maximum withstand temperature of the pipe material. Also, adjustments in heat loss calculations may be required.
→
Example
▪
Maximum exposure temperature:
50
°C (“power on”), 70
°C (“power off”)
▪
Minimum operation temperature:
-
10
°C
▪
Required heat output:
21.2 W/m
▪
Required temperature class:
T5
Trace heater family that meets the requirements:
PSB
4
nominal heat output at 10 °C
5
applies for the trace heater models with 230 Vac nominal rated voltage, temperature classes according to IEC/IEEE 60079-30-1:2015 (max. surface temperature). For other
voltages or temperatures contact your local BARTEC distributor.