Design Guide for Hazardous / Industrial
Self-regulating trace heating systems
21-1S00-7D0001/-
05/2023-EHT-466853
Notice Technical data subject to change without notice.
No claims for damage arising from alternations, errors or misprints shall be allowed.
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Technical data
Self-regulating trace heating system
Protection classification
II 2G Ex db eb mb [ib] 60079-30-1 IIC T6…T3 Gb
II 2D Ex tb [ib] 60079-30-1 IIIC T
L
80 °C… T
L
170 °C Db
Trace heater
PSB
MSB
Max. continuous operating
temperature, energized 65 °C
110 °C
Max. continuous exposure
temperature, de-energized 85 °C
130 °C
Min. start-up temperature
-55 °C
-60 °C
Min. installation temperature -55 °C
-60 °C
Power Output
1
10, 15, 25, 33 W/m
10, 15, 30, 45, 60 W/m
Nominal voltage
110 V to 120 Vac /
208 V to 277 Vac
110 V to 120 Vac /
208 V to 277 Vac
Max. braid resistance < 18.2 Ω/km
< 18.2 Ω/km
Braid material Tinned copper
Nickel-plated copper
Min. bending radius 25 mm (Do not bend on the
narrow axis.)
10 mm
(Do not bend on the
narrow axis.)
Cable weight 13 kg/100 m
11.5 kg/100 m
Heater
dimensions
fluoropolymer outer
jacket
11.6 x 5.6 mm
10.2 x 4.8 mm
polyolefin outer jacket
11.8 x 5.8 mm
-
Temperature classes
T6: 3PSB2, 5PSB2
T5: 8PSB2, 10PSB2
T4: 3MSB2, 5MSB2
T3: 10MSB2, 15MSB2,
20MSB2
Protection classification
II 2G Ex 60079-30-1 IIC
T5, T6 Gb
II 2D Ex 60079-30-1 IIIC
T95 °C, T80 °C Db
II 2G Ex 60079-30-1 IIC
T3, T4, T5, T6 Gb
II 2D Ex 60079-30-1 IIIC
T170°C, T130°C, T95 °C,
T80 °C Db
1
nominal heat output at 10 °C
