11
Cable capacity chart
Compartment 1
Systems 130 & 170
Compartment 2
Systems 130 & 170
Compartment 3
Systems 130 & 170
No box With box No box With box No box With box
PVC power cable 1.5mm
2
stranded copper
System 130
82
–
–
39
82
–
System 170
147
–
–
39
147
–
PVC power cable 2.5mm
2
stranded copper
System 130
60
–
–
27
60
–
System 170
100
–
–
27
100
–
PVC power cable 4.0mm
2
stranded copper
System 130
42
–
–
20
42
–
System 170
76
–
–
20
76
–
Data cable: Ø5.5mm
System 130
23
–
–
11
23
–
System 170
41
–
–
11
41
–
Data cable: Ø6.0mm
System 130
19
–
–
9
19
–
System 17010
35
–
–
9
35
–
Data cable: Ø6.5mm
System 130
16
–
–
8
16
–
System 170
29
–
–
8
29
–
Cable capacities
•
All calculations allow for a 45% space factor.
As there can be differences between data cable sizes, Marshall-Tufflex
recommend that cable dimensions are confirmed with the manufacturing
company.
Compartments 1 & 3 = 2812mm² (each) total area
Compartments 1 & 3 = 1265mm² (each) 45% space factor
Compartment 2 = 760mm² total area (with box)
Compartment 2 = 342mm² 45% space factor (with box)
System 130 trunking
130 x 63mm
System 170 trunking
170 x 63mm
Compartments 1 & 3 = 1585mm² (each) total area
Compartments 1 & 3 = 760mm² (each) 45% space factor
Compartment 2 = 713mm² total area (with box)
Compartment 2 = 342mm² 45% space factor (with box)
Dimensions
Conductor type
Size
Cable factor
Stranded PVC power 1.5mm
2
8.6
Stranded PVC power 2.5mm
2
12.6
Stranded PVC power 4.0mm
2
16.6
*Data cable
Ø5.5mm 30.2
*Data cable
Ø6.0mm 36.0
*Data cable
Ø6.5mm 42.2
*Check with manufacturer for typical values.
To determine cable
capacity, select the size of
the cable required and its
corresponding cable factor
from the table. Divide the
compartment area figure
(with or without 45%
space factor) with the
cable factor figure to
achieve cable capacity.
Steel trunking Series 130 and
Series 170 – continued
63
21
80
1
2
3
Box
40mm
Internal
Depth
40
130
63
21
80
1
2
3
Box
40mm
Internal
Depth
40
170
