BD01 System – 40 ... 160 A - GRUP DAP

© Siemens AG 2007
CD-K System — 25 ... 40 A
General data
■ Technical specifications
General technical specifications
Type
Trunking units
CD-K-...
Standards and specifications IEC/EN 60439-1 and -2
Rated insulation voltage U i V AC/DC 400/400
Overvoltage category/pollution degree
Rated operational voltage U e V AC 400
Frequency Hz 50 ... 60
Resistance to climate Damp heat, constant, according to IEC 60068-2-78
Damp heat, cyclic, according to IEC 60068-2-30
Ambient temperature °C -5 ... +40
Degree of protection according to IEC/EN 60529
IP54, increase to IP55 with accessories
Material
•Trunking units
Galvanized, painted sheet steel
•Busbars
Tinned and insulated round-section copper wires
Mounting position
Edgewise; tap-off points at the side
Weigth
See "Selection and Ordering Data"
III/3
Type CD-K-1302 CD-K-1303 CD-K-1304 CD-K-2254 (/2)
Conductors
Rated insulation voltage U i V AC/DC 400/400 400/400 400/400 400/400
Overvoltage category/pollution degree III/3 III/3 III/3 III/3
Rated operational voltage U e V AC 400 400 400 400
Frequency Hz 50 ... 60 50 ... 60 50 ... 60 50 ... 60
Rated current I e = conventional thermal current
A 30 30 30 2 × 25
at max. 40 °C and 35 °C on a 24 h average
Impedance of conductors at 50 Hz
and 20 °C
•Resistance R 20 mΩ/m 5.79 5.79 5.79 4.56
• Reactance X 20 mΩ/m 0.26 0.26 0.26 0.15
• Impedance Z 20 mΩ/m 5.80 5.80 5.80 4.56
Impedance of conductors
under fault conditions
• AC resistance R F mΩ/m 8.24 8.24 8.24 7.50
• Reactance X F mΩ/m 0.44 0.44 0.44 0.32
• Impedance Z F mΩ/m 8.25 8.25 8.25 7.51
Zero impedance according to IEC/EN 60909 (VDE 0102)
•Resistance R 0 Phase to N mΩ/m 24.24 24.24 24.24 18.59
• Reactance X 0 Phase to N mΩ/m 1.77 1.77 1.77 0.82
• Impedance Z 0 Phase to N mΩ/m 24.30 24.30 24.30 18.61
•Resistance R 0 Phase to PE mΩ/m 12.00 12.00 12.00 13.49
• Reactance X 0 Phase to PE mΩ/m 1.80 1.80 1.80 0.82
• Impedance Z 0 Phase to PE mΩ/m 12.13 12.13 12.13 13.52
Short-circuit strength
Rated impulse withstand current I pk kA 2.4 2.4 2.4 3.0
Rated short-time withstand current I cw (t = 1 s) kA 0.56 0.56 0.56 0.69
Rated short-time withstand current I cw (t = 0.1 s) kA 1.6 1.6 1.6 2.0
Conductors
Number of active conductors 2 3 4 2 × 4 (1 × 4, 1 × 2)
Conductor cross-section
• L1, L2, L3 mm 2 3.2 3.2 3.2 4.0
•N mm 2 3.2 3.2 3.2 4.0
• PE (enclosure) = Cu mm 2 11 11 11 11
Conductor material Cu Cu Cu Cu
Fire load kWh/m 0.1 0.15 0.201 0.48
Max. thermal load , I 2 t value A 2 s × 10 3 310 310 310 470
Fixing intervals
m 3 3 3 3
at normal mechanical load
Position of tap-off points
depending on the type: on one side at 0.5 m or 1 m intervals, on both sides at 0.5 m
intervals or alternating from side to side and offset at 0.5 m intervals
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Siemens LV 70 · 2006
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