Modular units

DE53585
DE53586
Connections Cable-connection from below
for 24 kV
Trenches depth
625
500
375
187.5
Cabling from below (all units)
b Through trenches: the trench depth P is given in the table opposite for commonly
used dry single-core cables type (for tri-core cables consult us).
b With stands: to reduce P or eliminate trenches altogether by placing the units
on 400 mm concrete footings.
b With fl oor void: the trench depth P is given in the table opposite for commonly
used types of cables.
Single-core cables Units until 630 A 1250 A units
Cable
x-section
(mm 2 )
Bending
radius
(mm)
IM,
SM,
NSM-cables,
NSM-busbars
IMC, DM1-A,
DM1-W,
DM1-S,
DMVL-A,
GAM
86 AMTED398078EN.indd
CRM
CVM
DMV-A,
DMV-S
PM,
QM,
QMC (1)
SM,
GAM
DM1-A (2)
DM1-W (2)
DMV-A (3)
Depth P (mm) all orientations
P1 P2 P2 P2 P3 P4 P5 P6
50 370 140 400 400 500 350
70 400 150 430 430 530 350
95 440 160 470 470 570 350
120 470 200 500 500 600
150 500 220 550 650
185 540 270 670 770
240 590 330 730 830
400 800 1000 1350 1450
630 940 1000 1350 1450
(1) Must be installed with a 100 mm depth metal pan.
(2) Must be installed with a 350 mm depth metal pan, in a fl oor void.
(3) Mounting with a 445 mm depth metal pan compulsory in a fl oor void.
Note: the unit and the cables requiring the greatest depth must be taken into account
when determining the depth P or single-trench installations.
In double-trench installations, depth P must be taken into account for each type of unit
and cable orientations.
Cable trench drawings
1250 A units (represented without switchboard side panels) 630 A units
SM, GAM
For single and tri-core cables
140
50
740
600
P4
DE53587
DMV-A
For single and tri-core cables
140
50
740
600
480
445
P6
DE58350
DM1-A, DM1-W
For single-core cables
140
80
50
740
840
P5
DE53589
DMV-A, DMV-S
For single cables
140
50
740
600
100
P2