Accessories AC Current Transformer (max 51x15mmbus-bar) Type CTD-3X • 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 Description Ordering Key CTD-3X 800 5A XXX Cable/Bus-bar type current transformer with DIN-rail/bus- bar and panel mounting facility. Type Selection Primary current From 50 to 800A (Refer to Range Table) Rated primary currents from 50 A to 800 A. Secondary current 1A 5A Model Primary current Secondary current Option Optional fixing kit: CTD-kit Option XXX:none XTX:tropicalization Input Specifications Operating frequency45 to 65 Hz Max. system voltage0.72 kV Rated insulation level3 kV/1 min. @ 50 Hz Insulation class E (max 75°C) Short-time current rating Ith Typical 100 In /1 s Idyn 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) General Specifications StandardsAccording to EN60044-1 Housing ABS, self-extinguishing: UL 94 V-0 Mounting DIN-rail bus-bar and panel mounting Standard accessoriesTwo 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. Six plastic caps for cable/bus-bar fixing screws. Special features1 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) ApprovalsCE, cUrus and CSA ConnectionScrew 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 Output Specifications Rated secondary current5 A or 1 A Specifications are subject to change without noticeCTD-3X DS ENG 250315 1
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