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Self-regulating trace heating systems
Trace heater Installation Enclosure as Power Box kit
Junction box with mounting stand
Max. workpiece
temperature mounting
stand
2
Max. trace heater entries
Terminals
Maximum circuit breaker
size
4
Power supply
Ambient temperature range
Min. installation temperature
Power supply cable
Service temperature at con-
ductor
5
Ingress Protection
Connection Technology (CAK)
Maximum withstand tem-
perature / max. service tem-
perature end seal
Min. installation tempera-
ture
Connected
Trace
trace
heater
heater type
rated
power out-
put [W/m]
HSB+
10, 15, 30,
45, 60
75
HTSB
10, 15, 30,
45, 60
75, 90
Maximum workpice temperature depending on the type of trace heater, used
2
On request
3
Protecting of all components of the branch circuit against over-current; choice depending on design parameters
4
For supply cable type selection, the permissible operating temperature at the conductor is to be observed with respect to the maximum ambient temperatue of the power box.
5
21-5400-7D0001/-
05/2023-EHT-466854
PBS-200-E
PBS-300-E
PBM-200-E
/-E10 / -E16
/-E10 / -E16
/-E10 / -E16
+240 °C
-
+240 °C
2
1
Spring clamp Ex e; 2x3
Spring clamp Ex e; 3x3
lines, 1x3 PE
32 A
T
Limitation of operating current (stady state) of trace
amb max
[°C]
heating circuit at T
PBS/PBM
+40
20
+55
18
+40
20
+55
18
+40
20
+55
18
+40
20
+55
18
Notice Technical data subject to change without notice.
No claims for damage arising from alternations, errors or misprints shall be allowed.
Design Guide for Hazardous / Industrial
PBM-300-E
PBTW-200-E
/-E10 / -E16
-
+240 °C
3
3
2
Spring clamp Ex e; 4x3 lines,
lines, 2x3 PE
max. 277 Vac
-55 °C to +55 °C
-55 °C
HSB+, HTSB:
70 °C @ Ta max 40 °C
80 °C @ Ta max 55 °C
IP 66
+200 °C
-60 °C
[A]
amb max
PBTC
PBTW **
19
16
*12
16
19
16
*12
16
19
16
*12
16
19
16
*12
16
PBTW-300-E
PBTC-200-E
-
+240 °C
1 (3
)
1
3
Spring clamp Ex e; 2 x lines,
2x3 PE
2 x neutral, 2 x PE
16 A
-40 °C
-40 °C
IP 64; IP 66 (EN 60529)
Max. surface temperature
"T
" [°C]
L
Installation
Trace
enclosure
heater ##
#
+110
+200
+110
+200
+110
+300
+110
+300
+110
+200
+110
+200
+110
+300
+110
+300
PBTC-300-E
-
1
32 A
T-class
System
###
T3
T3
T2
T2
T3
T3
T2
T2
Page 6 / 40
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