AC1020 • 20 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 Turns Ratio Volt per Amp Ratio at 20A for 100 ohm load Volt per Amp Ratio at 2A for 100 ohm load DC Resistance at 20°C Dielectric Withstanding Voltage (Hi-pot) 20A nom., 60 A max. 1000:1 nominal 0.100 V/A 0.097 V/A 41.8 ohms 4KVrms Mechanical Specifications E n viro n men tal S p ecificatio n s Polycarbonate Epoxy Conforms to UL94-VO Pins Ø 0.80mm Marking TALEMA Date Code (W/Y) AC1020, Dot at start pin Approximate Weight Tolerance Storage Temperature Insulation Resistance 10000 16.3 grams ±0.2mm Output Volts vs Input Current For various ohmic loads 1000 100 10 10 Infinity 10K 5K 0 200 400 600 800 1000 100 1000 Percent ratio error in % 2K 500 1K 200 Typical Excitation Curve (AC1005~AC1020) 50 100 1 100 0.1 0.01 1 10 100 Input Current in Amps Dimensions 11.12 23.80 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 (AC1020) Load Resistance RL in ohms C a se Encapsulant Flammibility Terminals 10 1 0.1 0.01 0.1 1 10 23.80 Sec RMS Exciting current in mA TALEMA INDIA W/Y AC1020 5±1mm Ø9.50 2 3 15.24 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 0.813 1 1.75 I - Turn Primary 20A 20mA 7.62 RL 1/8W 2.0V 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\AC1020