AC1050 • 50 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 50A nom., 125A max. Turns Ratio 1000:1 nominal Volt per Amp Ratio at 50A for 100 ohm load 0.100 V/A Volt per Amp Ratio at 5A for 100 ohm load 0.098 V/A DC Resistance at 20°C 49.3 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) AC1050, Dot at start pin Approximate Weight Tolerance Storage Temperature Insulation Resistance 10000 47.3 grams ±0.2mm Output Volts vs Input Current For various ohmic loads 100 1000 100 10 0 2K 200 400 10 600 800 1000 Percent ratio error in % 1K Typical Excitation Curve (AC1040~AC1050) 500 200 100 100 1 50 0.1 10 100 Input Current in Amps Dimensions 14.30 34.90 Sec RMS Exciting Voltage in Volts Output Voltage in Volts Infinity 10K 5K -55° to +130°C 100 megohms min. %RE vs RL at Rated primary current (AC1050) Load Resistance RL in ohms C a se Encapsulant Flammibility Terminals 10 1 0.1 0.01 0.1 1 10 34.90 Sec RMS Exciting Current in mA TALEMA INDIA W/Y AC1050 5±1mm Ø14.60 2 3 25.40 1 Ø 1.016 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 2.08 1 10.16 I - Turn Primary 50A 3 50mA RL 1/4W 5.0V 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\AC1050