Current measuring relay For falling below or exceeding the limit value of single-phased currents, 2 versions, each with three operating ranges from AC/DC 2 to 500 mA and/or 0.1 to 15 A, Curve shape: sine, square, triangle, 10 time domains: non-delayed, 0.1 s to 3 h for the response time delay, Frequency range of the measured variable from 45 to 400 Hz, Multifunction: Operating or standby current principle, hysteresis 3 % or 10 % of the target value