CD System (25 A - 40 A)
3/2
System overview
3/4
Description
3/6
Engineering
3/14
3/14
3/16
3/18
Selection and ordering data
Trunking units
Feeder units
Tap-off plugs
Accessories
3/20
Technical data
3/22
3/23
Dimension drawings
Trunking units, feeder units,
tap-off plugs
Accessories
Siemens LV 70 · 2004
CD System (25 A - 40 A)
System Overview
1
2
3
3
4
5
4
4
3
3/2
Siemens LV 70 · 2004
CD System (25 A - 40 A)
System Overview
1
Trunking units
3-, 4-, 5-conductor system
Degree of protection IP54
Tap-offs on one side:
2 or 3 tap-off points at 1 m intervals,
5 tap-off points at 0.5 m intervals
Tap-offs on both sides:
2, 3 or 5 tap-off points at intervals of
0.5 or 1 m
2 m and 3 m lengths
Plug-in connection
Tap-off points can be coded
3
a Page 3/18
4
a Page 3/14
2
Accessories
Fixing bracket
Suspension hook
Suspension bracket
Cable fixing
Coding set
Feeder units
Entry feeder units
End feeder units
Tap-off plugs
3-pole, 10 and 16 A
Phase sequence L1, L2 or L3 with N and PE can be changed by repositioning the
contacts.
5-pole, 10 A and 16 A
L1, L2, L3, N, PE
Can be coded
a Page 3/16
a Page 3/14
5
End flange
3
a Page 3/19
Siemens LV 70 · 2004
3/3
CD System (25 A - 40 A)
Description
Features
End flanges
• Type-tested low-voltage switchgear and controlgear assembly (TTA)
to IEC/EN 60 439 -1 and -2
• Reduced planning costs through simplified engineering
• Quick-release plug-in connection for fast assembly
• Tap-off points on both sides for optimized utilization of the busbar
• Even electrical loading of the CD system conductors by connecting an equal number of tap-off plugs to each individual phase
• Versatility through high degree of protection to IP54 of the standard version
• Tap-off plugs allow fast, flexible load relocation.
These flanges provide protection against direct contact at the ends of the busbar
run. They are suitable for use with all CD systems.
Feeder units
Trunking units
3
a Locating section
b Connection terminal
c Tap-off point
The trunking units are available in lengths of 2 m and 3 m. They consist of a
rectangular, galvanized metal housing with a white-grey paint finish.
They are fitted with the following conductor runs on one or both sides:
• 2 for L1 + N (PE = housing)
• 3 for L1 + L2 + N (PE = housing)
• 4 for L1 + L2 + L3 + N (PE = housing)
Single conductor run:
tap-off points at intervals
of 0.5 m or 1 m
Two conductor runs:
tap-off points at intervals
of 0.5 m or 1 m
Two variants are available:
• Entry feeder unit for 2 25 A, 30 A and 40 A
• End feeder unit for 2 25 A, 30 A and 40 A.
One end flange is included as standard with each unit.
Cable entry from three sides. Use metric M25 or M32 plastic cable glands with
strain relief (not included as standard).
Tap-off plugs
The tap-off points on the trunking units accept insulated enclosed tap-off plugs.
The following versions are available:
• 3-pole and 5-pole versions without fuse base with halogen-free, flame-retardant
cable.
• 3-pole and 5-pole version without fuse base with terminal and plastic M20 cable
grommet.
• 3-pole version with fuse base for 8.5 mm 31.5 mm type gG (IEC) and type gL
(VDE) fast cylinder fuses, with halogen-free, flame-retardant cable.
• 3-pole and 5-pole versions with fuse bases for one or three 8.5 mm 31.5 mm
type gG (IEC) and type gL (VDE) fast cylinder fuses; with terminal and plastic
M20 cable grommet.
The tap-off points are spaced at regular intervals of 0.5 or 1 m on the trunking unit.
The trunking unit housing acts as the PE conductor. Three current ratings are
available: 2 25 A, 30 A, 40 A. All trunking units have touch-proof tap-off points,
that can be coded by the user.
Connection method
The 3-pole tap-off plugs have a variable phase tap-off, i.e. they can be connected to
L1, L2 or L3.
The trunking units, including those with feeder units and flanges, are assembled without tools by straightforward plug-in connection.
The PE path is established automatically when the housings are connected.
An interlock mechanism with two fixings prevents a loosening of the connections
between the trunking units, feeder units and flanges.
No expansion compensation is required.
3/4
Siemens LV 70 · 2004
CD System (25 A - 40 A)
Description
The phase tap-off can therefore be changed by simply changing the contacts
to another terminal.
L3
L2
L1
N
PE
L1 + N + PE
Coding
Coding can be used for various frequencies and voltages. It can be retrofitted to the
CD-K-... trunking units and the CD-K-A... tap-off plugs. Three code settings are
possible: CD-K1 (K2, K3).
L3 + N + PE
L2 + N + PE
On the 5-pole tap-off plugs, the phase tap-off can not be changed.
The phase assignment of the tap-off plugs is visible from the outside.
L3
L2
L1
N
L3
L2
L1
Suspension
The trunking unit profile allows attachment of the suspension and fixing brackets at
any point of the trunking unit.
N
N L1 L2 L3
N
L1 L3
L2
Tap-off plugs with terminals accept cables up to 2.5 mm2.
Fixing bracket for trunking units and suspension bracket for luminaires up to max.
20 kg (5-fold safety to DIN 49 980).
For more accurate centring, the CD-GP threaded plate can be used.
Fixing bracket for suspending trunking units and for increased
mechanical rigidity at the trunking unit connection points.
L3
L1
L2
N
Supplementary components
Underfloor mounting
Fixing bracket for underfloor mounting
Clip-type fixing bracket for suspension from the trunking unit and for mounting luminaires (for luminaires up to max. 20 kg at 5-fold safety to DIN 49 980). Also allows cables to be routed alongside the system at a later stage.ab
Clip-type fixing brackets must be used only for balanced loads, not for concentrated
loads.
Cables routed with the trunking unit can be secured using the cable clip.
Siemens LV 70 · 2004
3/5
3
CD System (25 A - 40 A)
Engineering
Specimen text for tenders
Item
Quantity
Description
... m
Busbar trunking system for small loads and
lighting installations
• As “type-tested low-voltage switchgear and controlgear assembly”
(TTA) to IEC/EN 60 439-1 and -2
• Rated current, corresponds with therm. rated current
at max. +40 °C and +35 °C average over 24 h, for indoor installation
• Rated insulation voltage Ui = 400 V AC, 400 V DC;
overvoltage category/pollution degree III/3
• Operational voltage ... V, ... Hz
• Rated peak withstand current of busbar trunking system,
... kA tested to IEC/EN 60 439-1
• Degree of protection IP54
• 3-, 4-, 5- or 2 5-conductor system
• Copper conductor, insulated along its whole length
• Trunking units, sheet steel enclosed, with paint finish
• Tap-off points at 0.5 m and 1 m intervals per side
• Supplied ready for connection with all assembly parts
3
• Made by Siemens
• Type CD-...
Consisting of:
3/6
Siemens LV 70 · 2004
Unit price
Amount
CD System (25 A - 40 A)
Engineering
Determining fixing intervals
The closed section of the CD system has a high degree of mechanical strength. The
load diagrams show the maximum permissible loading in relation to the fixing
interval (distance between suspension points).
Deflection f of the busbar trunking unit should not be greater than 1/300 of the
distance (L) between supports. F = balanced load.
L
f
F
L
Balanced load
Concentrated load
Concentrated and balanced loads in relation to suspension point interval
Balanced load
(kg)
18
(kg)
18
16
16
14
14
0
10
8
6
6
4
2.00
30
00
1/
1/5
3
0
0
=
f/L =
12
50
/30
10
8
=1
1/
f/L
=
Weight of fitted loads
f/L
12
f/L
Weight of fitted loads
Concentrated load
4
2.50
Fixing interval L
3.00 (m)
2.50
2.00
3.00 (m)
Fixing interval L
3m
3m
Underfloor mounting with CD-BUF
Pendant fixing using CD-BA
3m
F3m
Siemens LV 70 · 2004
3/7
CD System (25 A - 40 A)
Engineering
Arrangement of luminaires
The numbers, e.g. a, indicate the corresponding position of the luminaires in the
table below.
Three lamps
Single lamp
L1
L2
L3
N
L1
L2
L3
N
X
X
X
X
X
X
X
X
= single lamp, non-compensated, cos ϕ ≈ 0.5
X
= three lamps, alternately series-compensated
L1
L2
L3
N
L1
L2
L3
N
X
3
X
X
X
X
= single lamp, parallel-compensated, cos ϕ ≈ 0.9
X
= three lamps, non-compensated
L1
L2
L3
N
X
X
X
X
X
= single lamp, alternately series-compensated, cos ϕ ≈ 0.1
Two lamps
L1
L2
L3
N
X
X
X
X
X
X
= two lamps, non-compensated
L1
L2
L3
N
X
X
X
X
X
X
= two lamps, twin-lamp circuit, cos ϕ ≈ 1
3/8
Siemens LV 70 · 2004
X
CD System (25 A - 40 A)
Engineering
Connectable luminaires without consideration of voltage drop
Lamp voltage
per luminaire
(linear fluorescent
lamp)
1 36 W
1 58 W
Non-compensated
single-phase
1 36 W
1 58 W
Parallel-compensated
single-phase
1 36 W
1 58 W
Alternately
compensated
single-phase
2 36 W
2 58 W
Non-compensated
single-phase
2 36 W
2 58 W
Twin-lamp circuit,
single-phase
3 36 W
3 58 W
Alternately
compensated
three-phase
3 36 W
3 58 W
Non-compensated
three-phase
Connectable luminaires with protection by miniature circuit-breaker
at 16 A
Arrangement
of luminaires
Units/
phase
at 20 A
Total
length for
connection
to 3-phases
Units/
phase
at 25 A
Rated
current
with
choke
Length
of light
fixture
A
m,
approx.
0.44
0.70
1.25
1.55
33
20
128
96
42
25
163
120
52
32
202
153
66
40
248
186
0.25
0.40
1.25
1.55
30
19
117
91
37
24
144
115
47
30
183
144
59
37
222
173
0.23
0.35
1.25
1.55
48
32
187
153
60
40
234
192
75
50
292
240
96
64
360
298
0.88
1.40
1.25
1.55
16
10
62
48
21
12
81
57
26
16
101
76
41
20
124
93
0.46
0.71
1.25
1.55
24
16
93
76
30
20
117
96
37
25
144
120
47
32
177
149
0.23
0.35
1.25
1.55
48
32
62
51
60
40
78
64
75
50
97
80
96
64
125
103
0.44
0.70
1.25
1.55
33
20
42
32
42
25
54
40
52
32
67
51
66
40
86
64
m,
approx.
Total
length for
connection
to 3-phases
Units/
phase
at 32 A
m,
approx.
Total
length for
connection
to 3-phases
Units/
phase
m,
approx.
Total
length for
connection
to 3-phases
m,
approx.
Siemens LV 70 · 2004
3
3/9
CD System (25 A - 40 A)
Engineering
Lamp voltage
per luminaire
(linear fluorescent
lamp)
1 36 W
1 58 W
Non-compensated
single-phase
1 36 W
1 58 W
Parallel-compensated
single-phase
3
1 36 W
1 58 W
Alternately
compensated
single-phase
2 36 W
2 58 W
Non-compensated
single-phase
2 36 W
2 58 W
Twin-lamp circuit,
single-phase
3 36 W
3 58 W
Alternately
compensated
three-phase
3 36 W
3 58 W
Non-compensated
three-phase
3/10
Connectable luminaires with protection by gL fuses
at 16 A
Arrangement
of luminaires
Total length
for
connection
to 3-phases
Units/
phase
at 25 A
Length of
of light
fixture
A
m,
approx.
0.44
0.70
1.25
1.55
33
20
128
96
42
25
163
120
52
32
202
153
72
44
280
211
0.25
0.40
1.25
1.55
36
23
140
110
44
28
171
134
60
38
234
182
90
56
351
268
0.23
0.35
1.25
1.55
48
32
187
153
60
40
234
192
75
50
292
240
105
70
409
336
0.88
1.40
1.25
1.55
16
10
62
48
21
12
81
57
26
16
101
76
36
22
140
105
0.46
0.71
1.25
1.55
24
16
93
76
30
20
117
96
37
25
144
120
51
35
198
168
0.23
0.35
1.25
1.55
48
32
62
51
60
40
78
64
75
50
97
80
105
70
136
112
0.44
0.70
1.25
1.55
33
20
42
32
42
25
54
40
52
32
67
51
72
44
93
64
m,
approx.
Total length
for
connection
to 3-phases
Units/
phase
at 35 A
Rated
current
with
choke
Siemens LV 70 · 2004
Units/
phase
at 20 A
m,
approx.
Total length
for
connection
to 3-phases
Units/
phase
m,
approx.
Total length
for
connection
to 3-phases
m,
approx.
CD System (25 A - 40 A)
Engineering
Short-circuit protection
The lengths of the CD busbar runs given in the guide value tables on Page 3/9 and
Page 3/10 take into account only the rated current of the connectable luminaires.
l inc.
To determine the precise length of the busbar run, voltage drops and short-circuit
protection must be taken into account.
z inc.
l CD
Protective device
z CD
CD-System
Incoming cable
Luminaire
x
Tap-off with cable
1 mm 2 or 1,5 mm 2
1. Voltage drop U, which, according to the applicable
technical literature, should lie between 3 % and 5 % when the load is
evenly distributed across the lighting system.
DU(%) = DU(V) x 100%
Ue(V)
∆U (V) → Page 3/13
3
2. Fault protection to IEC 60 364 Part 410.
Calculation of the current resulting in automatic
interruption, taking into account the incoming supply cable and
the outgoing circuit.
Ia =
Uo
Zs
Ia
Uo
Zs
=
=
=
ZSource
lInc
lCD
lOut
ZInc
ZCD
ZOut
=
=
=
=
=
=
=
=
Uo
(A)
ZSource + ZInc + ZCD + ZOut
=
Uo
ZSource + ZInc lInc + ZCD lCD + ZOut lOut
Current resulting in automatic interruption
Nominal voltages to earth
Fault loop impedance. Can be measured,
calculated or determined using the network model.
Source impedance
Single length of incoming supply cable
Single length of CD system
Length of outgoing circuit
Loop impedance of incoming supply cable
Loop impedance of CD system
Loop impedance of outgoing circuit
(A)
(V)
(Ω)
(Ω)
(m)
(m)
(m)
(Ω/m)
(Ω/m)
(Ω/m)
(A)
The admissible opening delay is as specified in IEC 60 364 Part 430
t=
(115 x SI )
2
(s)
a
t
S
=
=
Ia
=
Admissible opening delay
(s)
Smallest conductor cross-section to be protected (mm2)
(outgoing circuit) 1 mm2 or 1.5 mm2
Current according to above calculation
(A)
The total opening delay of the selected protective device must not exceed the
determined admissible opening delay and must not be greater than 5 s.
For example:
ZInc
ZCD
=
=
ZOut
=
22 10-3 Ω/m at 2.5 mm2
8.25 10-3 Ω/m for 30 A CD system
5.67 10-3 Ω/m for 40 A CD system
7.51 10-3 Ω/m for 2 25 A CD system
54 10-3 Ω/m at 1 mm2
36 10-3 Ω/m at 1.5 mm2
Provided that the protective element is positioned immediately upstream of the
CD system feeder unit, ZInc can be ignored.
Siemens LV 70 · 2004
3/11
CD System (25 A - 40 A)
Engineering
Short-circuit protection
Overcurrent protective devices for overload and short-circuit protection
A system can be protected against start circuit alone, by fitting low-voltage h.b.c.
fuses (gL) into the incoming supply; the fuse size to be appropriate for the
prospective short-circuit current at the point of installation.
Due to their high response threshold (1.3 – 1.6 times rated current) and their long
rupturing times at small overcurrents, fuses are not suitable for overload protection.
For protecting the CD busbar trunking system and its outgoing circuits, we
recommend miniature circuit-breakers and motor-protective circuit-breakers.
System
Protective device per circuit
Icf = 25 kA
System
CD-130.
NH00 32 gL
CD-140.
NH00 40 gL
CD-225.
NH00 25 gL
CD-225.
Notes
Icf = Rated conditional short-circuit current of the
busbar trunking system and its outgoing circuits when
protected by a fuse
3
3/12
Siemens LV 70 · 2004
Protective device per circuit
Icc = 15 kA
Icc = 20 kA
Icc = 25 kA
CD-130.
FAZ-3-B32
AZ-3-C32
PKZ 2/ZM-32-8
CD-140.
FAZ-3-B40
AZ-3-C40
PKZ 2/ZM-40-8
FAZ-3-B25
AZ-3-C25
PKZ 2/ZM-25-8
Notes
Icc = Rated conditional short-circuit current of the
busbar trunking system and its outgoing circuits when
protected by circuit-breakers
CD System (25 A - 40 A)
Engineering
Voltage drop at rated current
Voltage drop
(Load distribution factor a = 0.5 for lighting installations)
Three-phase current (3 ~), alternating current (~)
For long busbar runs, it may be necessary to calculate the voltage drop.
Alternating current
DU (V/100 m)
20
DU = a x I x 2l x (R x cos v + X x sin v) x 10
18
–3
(V)
Three-phase current
30
A
)
(~
DU = a x 冪3 x I x l x (R x cos v + X x sin v) x 10
16
30
14
40
40
12
10
25
(V)
)
3~
A(
~)
∆U
A(
I
l
a
R
X
cos ϕ
)
3~
A(
25
–3
~)
A(
)
3~
A(
=
=
=
=
=
=
=
Voltage drop
Load current
Length
Load distribution factor
Ohmic resistance R20
Inductive reactance X20
Power factor
(V)
(A)
(m)
(mΩ/m)
(mΩ/m)
Factor “a” used in the equation for calculating the voltage drop is dependent on
the load distribution.
8
Load distribution
Factor a
A
B
6
A
4
B
C
D
E
C
D
E
F
B
A
Supply at A
One tap-off at B
1
Supply at A
Tap-off at B, C, D, E
0.5
Supply at A
Tap-off at C, D, E, F
0.25
2
0.4
0.5
0.6
0.7
0.8
0.9
1.0
cos v
Temperature characteristic of CD systems
Rated current (%)
130
120
110
100
90
80
70
-5
+5
+15
+25
+35
+45
+55
+65
Ambient temperature °C
(average over 24 hours)
Siemens LV 70 · 2004
3/13
3
CD System (25 A - 40 A)
Selection and ordering data
Trunking Units, Feeder Units
Length
Tap-off points
m
Trunking units
• Sheet steel housing
• Similar to RAL 9002 (white-grey)
• Tap-off points can be coded
Tap-off point
spacing
m
3
3
Single
conductor
run
1
3
Single
conductor
run
1
2
Single
conductor
run
1
3
Single
conductor
run
1
5
Single
conductor
run
0.5
3
Double
conductor
run
0.5, alternating
5
Double
conductor
run
0.5, alternating
10
Double
conductor
run
0.5
L1
N
PE
3
L2
L1
N
PE
2
L3
L2
L1
N
PE
3
L3
L2
L1
N
PE
3
3
L3
L2
L1
N
PE
2
L3
L2
L1
N
PE
3
L3
L2
L1
N
PE
3
L3
L2
L1
N
PE
Feeder units
• Insulated housing
• Cable entry from 3 sides
• M25 or M32 plastic cable gland with strain relief,
(not included as standard)
• Terminals for 2.5 to 10 mm2 cables
Entry feeder units
• Including CD-EF end flange
Single
conductor
run
Double
conductor
run
End feeder units
• Including CD-EF end flange
Single
conductor
run
Double
conductor
run
3/14
Siemens LV 70 · 2004
CD System (25 A - 40 A)
Selection and ordering data
Trunking Units, Feeder Units
Rated current Ie
30 A
Type
Article no.
Price
See
Price List
Rated current Ie
2 x 25 A
Type
Article no.
Price
See
Price List
Rated current Ie
40 A
Type
Article no.
CD-K-1302-3
211151
–
CD-K-1402-3
211156
CD-K-1303-3
211152
–
CD-K-1403-3
211157
CD-K-1304-2
211153
–
CD-K-1404-2
211158
CD-K-1304-3
211154
–
CD-K-1404-3
211159
CD-K-1304-3-05
211155
–
CD-K-1404-3-05
211160
–
CD-K-2254-2
211161
–
–
CD-K-2254-3
211162
–
–
CD-K-2254-3-05
211163
–
CD-K-1304-EA
211164
–
CD-K-1404-EA
211166
–
CD-K-2254-EA
211168
–
CD-K-1304-EE
211165
–
CD-K-1404-EE
211167
–
CD-K-2254-EE
211169
–
* This quantity or a multiple thereof can be ordered.
Price
See
Price List
PS*
1 unit
3
1 unit
Siemens LV 70 · 2004
3/15
CD System (25 A - 40 A)
Selection and ordering data
Tap-Off Plugs
Rated current
Ie
A
Type
Article no.
Price
See
Price List
PS*
Tap-off plugs
3-pole
• Can be changed over to L1 or L2 or L3 with N and PE
• Without fuses
• Halogen-free cable to IEC 60 754-1 and
flame-retardant to IEC 60 332-1
L3
L2
L1
N
3
With 0.8 m cable, 3 x 1 mm²
10
With 3 m cable, 3 x 1 mm²
10
With 4 m cable, 3 x 1 mm²
10
With 5 m cable, 3 x 1 mm²
10
With 8 m cable, 3 x 1 mm²
10
CD-K-A3O-1
211187
CD-K-A3O-3
211188
CD-K-A3O-4
211189
CD-K-A3O-5
211190
CD-K-A3O-8
211191
1 unit
CD-K-A5O-1
211192
CD-K-A5O-3
211193
CD-K-A5O-5
211194
CD-K-A5O-8
211195
1 unit
CD-K-A3M-1
211198
CD-K-A3M-3
211199
1 unit
5-pole
• L1, L2, L3, N and PE
• Without fuses
• Halogen-free cable to IEC 60 754-1 and
flame-retardant to IEC 60 332-1
L3
L2
L1
N
With 0.8 m cable, 5 x 1 mm²
10
With 3 m cable, 5 x 1 mm²
10
With 5 m cable, 5 x 1 mm²
10
With 8 m cable, 5 x 1 mm²
10
3-pole
• Can be changed over to L1 or L2 or L3 with N and PE
• For one 8.5 mm x 31.5 mm cylinder fuse,
type gG (IEC) or gL (VDE) (fast)
• Halogen-free cable to IEC 60 754-1 and
flame-retardant to IEC 60 332-1
L3
L2
L1
N
With 0.8 m cable, 3 x 1.5 mm²
16
With 3 m cable, 3 x 1.5 mm²
16
3/16
Siemens LV 70 · 2004
1 unit
* This quantity or a multiple thereof can be ordered.
CD System (25 A - 40 A)
Selection and ordering data
Tap-Off Plugs
Rated current
Ie
A
Type
Article no.
Price
See
Price List
PS*
Tap-off plugs
L3
L2
L1
N
3-pole
• Can be changed over to L1 or L2 or L3 with N and PE
• Without fuses
With plastic M20 cable grommet
Connection via 2.5 mm² terminal
16
CD-K-A3O-0
211196
1 unit
16
CD-K-A5O-0
211200
1 unit
16
CD-K-A3M-0
211197
1 unit
16
CD-K-A5M-0
211201
1 unit
5-pole
• L1, L2, L3, N and PE
• Without fuses
With plastic M20 cable grommet
Connection via 2.5 mm² terminal
3
3-pole
• Can be changed over to L1 or L2 or L3 with N and PE
• For one 8.5 mm x 31.5 mm cylinder fuse,
type gG (IEC) or gL (VDE) (fast)
With plastic M20 cable grommet
Connection via 2.5 mm² terminal
5-pole
• L1, L2, L3, N and PE
• For three 8.5 mm x 31.5 mm cylinder fuses,
type gG (IEC) or gL (VDE) (fast)
With plastic M20 cable grommet
Connection via 2.5 mm² terminal
* This quantity or a multiple thereof can be ordered.
Siemens LV 70 · 2004
3/17
CD System (25 A - 40 A)
Selection and ordering data
Accessories
Rated current
Ie
A
Accessories
Cylinder fuse
• For CD-K-A.M-. tap-off plugs,
8.5 mm x 31.5 mm, with spring indicator,
type gG (IEC), gL (VDE) (fast)
2
4
6
8
10
12
16
Type
Article no.
CD-ZS-2
044891
CD-ZS-4
044892
CD-ZS-6
044893
CD-ZS-8
044894
CD-ZS-10
044895
CD-ZS-12
044896
CD-ZS-16
044897
Type
Article no.
3
Price
See
Price List
PS*
10 units
Price
See
Price List
PS*
Accessories
Coding set
CD-K1
211202
10 units
CD-K2
211203
CD-K3
211204
3/18
Siemens LV 70 · 2004
* This quantity or a multiple thereof can be ordered.
CD System (25 A - 40 A)
Selection and ordering data
Accessories
Type
Article no.
Accessories
End flange
Price
See
Price List
PS*
CD-EF
052124
1 unit
Fixing bracket
• With paint finish
• For mounting trunking units and luminaires
CD-B
052134
12 units
Threaded/centring plate
12 mm x 31.5 mm, M6
• For CD-B fixing bracket
CD-GP
088779
50 units
Suspension hook
• For suspension by cable or chain in conjunction
with CD-B fixing bracket
CD-H
086012
10 units
Suspension bracket
• For suspension by cable or chain
(also for increased mechanical rigidity
at the connecting points)
CD-BA
025377
1 unit
Clip-type fixing bracket
• For mounting trunking units and luminaires (balanced load)
CD-BC
203519
12 units
Cable clip
• For securing cables alongside trunking units
CD-CL
203520
10 units
Fixing bracket
• For underfloor mounting
CD-BUF
272546
12 unit
* This quantity or a multiple thereof can be ordered.
Siemens LV 70 · 2004
3
3/19
CD System (25 A - 40 A)
Technical Data
3
Conductors
Rated insulation voltage Ui
Overvoltage category/
pollution degree
Rated operational voltage Ue
Frequency
Rated current Ie
Ⳏ therm. rated current
at max. 40 °C and
35 °C average over 24 hours
Impedance of conductors at 50 Hz
and 20 °C busbar temperature
Resistance R20
Reactance X20
Impedance Z20
Impedance of conductors under fault conditions
AC resistance RF
Reactance XF
Impedance ZF
“Null” impedance tested to IEC 60 909, VDE 0102
Resistance R0
Reactance X0
Impedance Z0
Resistance R0
Reactance X0
Impedance Z0
Phase to N
Phase to N
Phase to N
Phase to PE
Phase to PE
Phase to PE
Short-circuit rating
Rated peak withstand current Ipk
Rated short-time withstand current Icw (t = 1 s)
Rated short-time withstand current Icw (t = 0.1 s)
Number of active conductors
Conductor cross-section
L1, L2, L3
N
PE (housing) Ⳏ Cu
Conductor material
Combustive energy
Max. therm. load, I2t value
Fixing intervals at normal
mechanical load
CD-K-1302
CD-K-1303
CD-K-1304
CD-K-2254
V AC/DC
400/400
III/3
400/400
III/3
400/400
III/3
400/400
III/3
V AC
Hz
A
400
50 – 60
30
400
50 – 60
30
400
50 – 60
30
400
50 – 60
2 × 25
mΩ/m
mΩ/m
mΩ/m
5.79
0.26
5.80
5.79
0.26
5.80
5.79
0.26
5.80
4.56
0.15
4.56
mΩ/m
mΩ/m
mΩ/m
8.24
0.44
8.25
8.24
0.44
8.25
8.24
0.44
8.25
7.50
0.32
7.51
mΩ/m
mΩ/m
mΩ/m
mΩ/m
mΩ/m
mΩ/m
24.24
1.77
24.30
12.00
1.80
12.13
24.24
1.77
24.30
12.00
1.80
12.13
24.24
1.77
24.30
12.00
1.80
12.13
18.59
0.82
18.61
13.49
0.82
13.52
kA
kA
kA
2.4
0.56
1.6
2
2.4
0.56
1.6
3
2.4
0.56
1.6
4
3.0
0.69
2.0
2×4
mm2
mm2
mm2
3.2
3.2
11
Cu
0.1
310
3
3.2
3.2
11
Cu
0.15
310
3
3.2
3.2
11
Cu
0.201
310
3
4.0
4.0
11
Cu
0.48
470
3
kWh/m
A2s × 103
m
Tap-off plugs
Tap-off point
Tap-off plug
Offset every 0.5 m, 1 m or 0.5 m on each side; max. 16 A
3- and 5-pole; with or without permanently attached cable; with or without fuse
holders for 8.5 mm × 31.5 mm; type gG (IEC) and type gL (VDE) fast cylinder fuses.
All tap-off plugs are of utilization category AC-20B to IEC/EN 60 947-3.
The PE operates as an early-make contact during connection, and as a
late-break contact during removal of the tap-off plug.
Terminal capacity
Designation
Type
Entry feeder unit
CD-K-...-EA
L1, L2, L3
Min.
mm2
2.5
End feeder unit
CD-K-...-EE
2.5
Notes
3/20
Max.
mm2
6 (f)
10 (st, so)
6 (f)
10 (st, so)
N
Min.
mm2
2.5
2.5
so = solid, st = stranded, f = flexible with ferrule
Siemens LV 70 · 2004
Max.
mm2
6 (f)
10 (st, so)
6 (f)
10 (st, so)
PE
Min.
mm2
2.5
2.5
Max.
mm2
6 (f)
10 (st, so)
6 (f)
10 (st, so)
CD System (25 A - 40 A)
Technical Data
CD-K-1402
CD-K-1403
CD-K-1404
General technical data
400/400
III/3
400/400
III/3
400/400
III/3
Standards
Climatic proofing
400
50 – 60
40
400
50 – 60
40
400
50 – 60
40
Ambient temperature
Degree of protection
Mounting position
3.55
0.40
3.57
3.55
0.40
3.57
3.55
0.40
3.57
5.61
0.80
5.67
5.61
0.80
5.67
5.61
0.80
5.67
14.85
0.99
14.88
9.87
1.02
9.92
14.85
0.99
14.88
9.87
1.02
9.92
14.85
0.99
14.88
9.87
1.02
9.92
3.6
0.85
2.4
2
3.6
0.85
2.4
3
3.6
0.85
2.4
4
5.0
5.0
11
Cu
0.12
720
3
5.0
5.0
11
Cu
0.18
720
3
5.0
5.0
11
Cu
0.24
720
3
Weight
Dimensions
Material
Trunking units
Busbars
IEC/EN 60 439-1 and -2
Damp heat, constant,
to IEC 60 068-2-78
Damp heat, cyclical,
to IEC 60 068-2-30
Min./Max. °C
−5/+40
IP54, IEC/EN 60 529
Edgewise; tap-off points at the
side
a Annex
a Page 3/22
Galvanized, painted sheet steel
Tinned and insulated
round-section copper wire
3
Siemens LV 70 · 2004
3/21
CD System (25 A - 40 A)
Dimension drawings
Trunking Units, Feeder Units, Tap-Off Plugs
Trunking units
CD-K-2254-2
CD-K-2254-3
CD-K-1302-3
CD-K-1303-3
CD-K-1304-2
CD-K-1304-3
CD-K-1402-3
CD-K-1403-3
CD-K-1404-2
CD-K-1404-3
30
2000/3000
42
Length
m
2
3
500
1000
500
500
Feeder units
CD-K-1304-EA
CD-K-1404-EA
CD-K-2254-EA
CD-K-1304-EE
CD-K-1404-EE
CD-K-2254-EE
3
99
130
130
99
85
M25, M32
66
For M25, M32
For M25, M32
Tap-off plugs
CD-K-A3M-1
CD-K-A3M-3
CD-K-A3O-0
CD-K-A3M-0
CD-K-A5O-0
CD-K-A5M-0
CD-K-A5O-1
CD-K-A5O-3
CD-K-A5O-5
CD-K-A5O-8
CD-K-A3O-1
CD-K-A3O-3
CD-K-A3O-4
CD-K-A3O-5
CD-K-A3O-8
59
59
48
50
58
L3
L2
L1
N
N
189
3/22
Siemens LV 70 · 2004
58
42
L2
L1
59
L3
Number of
tap-off points
2 or 3
3, 5 or 10
CD System (25 A - 40 A)
Dimension drawings
Accessories
Fixing brackets
CD-B
CD-BC
47
12
5.3
74
92
20
35
10
20
26
25
6.4
17
Bracket underfloor mounting
CD-BA
CD-BUF
76
42.3
Suspension bracket
32
3
200
7x9
End flange
Cable clip
CD-EF
CD-CL
42
30
20
34
37
22
58
10
30
36
Coding set CD-K1 (K2, K3)
CD-K1
CD-K2
CD-K3
26.7
9.7
18.2
18.2
36.4
26.7
9.7
34
8.5
7.3
Siemens LV 70 · 2004
3/23
CD System (25 A - 40 A)
Notes
3
■
3/24
Siemens LV 70 · 2004