A74-11

Current and Voltage Controls Current Transformer, 3-Phase Types A 74-10, A 74-11 3-phase current metering transformers for use with current control relays Measuring ranges: A 74-10 5: 0.5 5 AAC A 74-10 20: 2 - 20 AAC A 74-11 100: 10 - 100 AAC A 74-11 500: 50 - 500 AAC www.DataSheet4U.com Product Description 3-phase current transformer measures on all three phases. Output voltage proportional to measured amplitude of the rms-value of the normal phase current. Ordering Key Type Input current A 74-10 5 Type Selection Input current 5 AAC 20 AAC 100 AAC 500 AAC Type no. A 74-10 5 A 74-10 20 A 74-11 100 A 74-11 500 Input Specifications A 74-10 5 Current range Max. current (continuously) Max. overload current (t = 30 s) Rated insulation voltage Input-output Overvoltage category Dielectric strength Dielectric voltage Rated impulse withstand volt. Power consumption 0.5 - 5 AAC 20 AAC 40 AAC 1000 VACrms IV (IEC 60664) 6 kVACrms 12 kV (1.2/50 µs) < 0.1 W@5 A A 74-10 20 2 - 20 AAC 50 AAC 85 AAC 1000 VACrms IV (IEC 60664) 6 kVACrms 12 kV (1.2/50 µs) < 0.25 W@20 A A 74-11 100 10 - 100 AAC 250 AAC 325 AAC 1000 VACrms IV (IEC 60664) 6 kVACrms 12 kV (1.2/50 µs) < 1.5 W@100 A A 74-11 500 50 - 500 AAC 750 AAC 1000 AAC 1000 VACrms IV (IEC 60664) 6 kVACrms 12 kV (1.2/50 µs) < 21 W@1500 A Output Specifications A 74-10 5 Output voltage (TA = 20°C = 68°F), RL = 9.5 kΩ) Output impedance Tolerance of output voltage @ rated input current Temperature variation Rated insulation voltage (cable)...