CTD3X CARLOGAVAZZI | Alldatasheet

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Technical content

Specifications are subject to change without no tice CTD-3X DS ENG 140116 1

  • Bus-bar type current transformer
  • 0.5 class, currents from 50 to 800 A
  • Integrated DIN-rail mounting holder
  • Removable panel fixing clips
  • Up to 6 Bus-bar isolated fixing screws
  • Double screw terminals (up to 8-wire connections)
  • Sealable terminal block covers Product De scrip tion Model Primary current Secondary current Option Ordering Key Cable/Bus-bar type current transformer with DIN-rail/ bus-bar and panel mounting facility. Rated primary currents from 50 A to 800 A. Accessories AC Current Transformer (max 51x15 mm bus-bar) Type CTD-3X Type Selection Input Specifications Operating frequency 45 to 65 Hz Max. system voltage 0.72 kV Rated insulation level 3 kV/1 min. @ 50 Hz Insulation class E (max 75°C) Short-time current rating I th Typical 100 In /1 s I dyn 2.5 Ith The short-time thermal current Ith is anyway limited by the cable/bus-bar size Extended current rating 120% Security factor (FS) ≤ 5 (Class: 0.5, 1 and 3) CTD-3X 800 5A XXX Primary current From 50 to 800A (Refer to Range Table) Option XXX: none XTX: tropicalization Secondary current Rated secondary current 5 A or 1 A Output Specifications Standards According to EN61869-2 Housing ABS, self-extinguishing: UL 94 V-0 Mounting DIN-rail bus-bar and panel mounting Standard accessories Two terminal block screws. Two cable/bus-bar fixing screws. Two plastic caps for cable/bus-bar fixing screws. Two panel mounting fixing clips. Two sealable terminal block covers. Optional accessories Extended fixing kit: CTD-kit Two panel mounting fixing clips. Six cable/bus-bar fixing screws. General Specifications Six plastic caps for cable/bus-bar fixing screws. Special features 1 A secondary current, Tropicalization Working temperature -25°C to +60°C (-13°F to 140°F) (R.H. < 90% non condensing @ 40°C) Storage temperature -30°C to +70°C (-22°F to 158°F) (R.H. < 90% non condensing @ 40°C) Approvals CE, cUrus and CSA Connection Screw type Cable cross section area From 1.5 to 6 mm2 Min/Max screws tightening torque relevant to terminal block screws: From 1 to 2 Nm Max screws tightening torque relevant to the cable/bus-bar fixing screws: 0,3 Nm Protection degree IP00 IP20 (with sealable terminal block covers + wire terminals) Cable diameter Max. 41 mm Bus-bar size Horizontal Max. 51x15; 40x20: 32x32 mm Vertical Max. 40x20 mm Weight From 550 to 700 g Optional fixing kit: CTD-kit

2 Specifications are subject to change without no tice CTD-3X DS ENG 140116

Model CTD-3X from 50A to 200A Primary Current Burden (VA) A CL 0.5 CL 1 CL 3 60 (@60°C/140°F) 2 75 (@60°C/140°F) 3 80 (@60°C/140°F) 3 Model CTD-3X from 250A to 800A Primary Current Burden (VA) A CL 0.5 CL 1 CL 3 300 (@60°C/140°F) 7 10 13 400 (@60°C/140°F) 9 14 17 500 (@50°C/122°F) 14 18 21 600 (@50°C/122°F) 17 21 24 700 (@40°C/104°F) 22 26 29 750 (@40°C/104°F) 24 28 31 800 (@40°C/104°F) 25 29 32 Dimensions (mm) Wiring Diagram Benefits 127,5 81,2 φ41 15,5 20,5 32,5 20,5 32,5 40,5 109 38,5 1 2 3 4 6 7 8 9

  • Easy and quick mounting either on a panel or on a DIN-rail (see figure 1-2).
  • Protection of screw terminals using specific sealable covers to assure always the best safety (see figure 3).
  • Bridging of current transformer output without changing the connection of the secondary, so to avoid any output overvoltage during either the maintenance or the installation procedure (see figure 4).
  • Easy output and earth connection (see fig. 5).
  • Screw terminals compatible with any kind of wire terminals (see figure 6-7-8-9).
  • Multiple screws provided with isolation cap screws to grant a strong and reliable fixing of the current transformer to the bus-bar (see figure 10). S1 S2 L N P1 P2