A82-20100 is a true RMS AC current metering transformer designed to measure AC currents up to 100 AAC and provide a 4-20 mADC sink output signal. The unit features a rated insulation voltage of 1000 VAC rms between input and output, with dielectric strength of 6 kVAC rms and rated impulse withstand voltage of 12 kV. It operates with a loop voltage of 10-40 VDC, offers ±2% tolerance on full scale at 50 Hz, and supports a frequency range of 40 Hz to 1 kHz. The transformer has a reaction time of less than 200 ms, operates in temperatures from -20°C to 50°C, and features IP40 protection with a green LED power indicator. Common applications include interfacing AC current measurements to PLCs with mADC inputs or use with compatible setpoint relays for current monitoring and alarm signaling.