AC1075 • 75 Amp Current Transformer Low Cost 50/60Hz Current Transformers Applications • Sensing Overload Current • Ground fault detection • Metering • Analog to Digital Circuits • Competitive pricing due to high volume production • Manufactured in an ISO-9001:2000, TS-16949:2002 and ISO-14001:2004 certified Talema facility • Fully RoHS compliant Electrical Specifications @ 20°C ambient E lectrical S p ecificatio n s Primary Current 75A nom., 200A max. Turns Ratio 1000:1 nominal Volt per Amp Ratio at 75A for 100 ohm load 0.100 V/A Volt per Amp Ratio at 7.5A for 100 ohm load 0.0984 V/A DC Resistance at 20°C 24 ohms Dielectric Withstanding Voltage (Hi-pot) 4KVrms Mechanical Specifications E n viro n men tal S p ecificatio n s Polycarbonate Epoxy Conforms to UL94-VO Pins Ø 1.0mm Marking TALEMA Date Code (W/Y) AC1075, Dot at start pin Approximate Weight Tolerance Storage Temperature Insulation Resistance 65.2 grams ±0.2mm Output Volts vs Input Current For various ohmic loads Infinity 10K 1000 100 10 5K 2K -200 0 200 400 600 800 1000 1200 1400 Percent ratio error in % 1K Typical Excitation Curve (AC1060~AC1075) 500 10 100 200 100 50 1 10 100 Input Current in Amps 1000 Dimensions 15.90 38.10 Sec RMS Exciting Voltage in Volts Output Voltage in Volts 100 -55° to +130°C 100 megohms min. %RE vs RL at Rated primary current (AC1075) 10000 Load resistance RL in ohms C a se Encapsulant Flammibility Terminals 10 1 0.1 0.01 0.1 1 10 38.10 Sec RMS Exciting Current in mA TALEMA INDIA W/Y AC1075 5±1mm Ø14.60 2 3 33.00 1 Notes: 1) Unless requested, the terminating resistor and the one-turn primary are not supplied 2) Pin 3: Normally for mechanical support only but will be used on center tapped designs Ø 1.016 1 2.85 10.16 I - Turn Primary 75A 3 75mA RL 1W 7.5V 100 ohms 2 Germany: Int.+49 89 - 841 00-0 • Ireland: Int.+35 374 - 954 8666 • Czech Rep: Int.+420 37 - 744 9303 • India: Int.+91 427 - 244 1325 http://www.talema-nuvotem.com (06-06)CT’s\AC1075