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