AC1040

AC1040 • 40 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 40A nom., 125A max. Turns Ratio 1000:1 nominal Volt per Amp Ratio at 40A for 100 ohm load 0.100 V/A Volt per Amp Ratio at 4A for 100 ohm load 0.098 V/A DC Resistance at 20°C 49.3 ohms Dielectric Withstanding Voltage (Hi-pot) 4KVrms Mechanical Specifications C a se Encapsulant Flammibility Terminals Marking Approximate Weight Tolerance Polycarbonate Epoxy Conforms to UL94-VO Pins Ø 1.0mm TALEMA Date Code (W/Y) AC1040, Dot at start pin E n viro n men tal S p ecificatio n s Storage Temperature Insulation Resistance -55° to +130°C 100 megohms min. %RE vs RL at Rated primary current (AC1040) 10000 47.3 grams ±0.2mm Load Resistance RL in ohms 1000 Output Volts vs Input Current For various ohmic loads 100 100 Infinity 10 0 200 400 600 800 Output Voltage in Volts 10K 5K 1K 2K Percent ratio error in % 10 500 200 100 100 Typical Excitation Curve (AC1040~AC1050) Sec RMS Exciting Voltage in Volts 1 50 10 0.1 10 Input Current in Amps 100 1 Dimensions 34.90 14.30 0.1 0.01 0.1 1 10 Sec RMS Exciting Current in mA 34.90 TALEMA INDIA W/Y AC1040 Ø14.60 5±1mm Ø 1.016 2 3 25.40 1 2.08 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 1 10.16 I - Turn Primary 40A 40mA 3 2 RL 1/4W 4.0V 100 ohms Germany: Int.+49 89 - 841 00-0 • Ireland: Int.+35 374 - 954 8666 • Czech Rep: Int.+420 377 - 338 351 • India: Int.+91 427 - 244 1325 http://www.talema-nuvotem.com (06-06)CT’s\AC1040