DIN rail- or panel-mount Model DSCL25 prevents transfer of interference voltages or currents. In case of input signal fault, red LED lights up, output signal is set to min/max value, and fault detection relay activates. Unit provides 2,300 Vrms I/O isolation and 3,700 Vrms power supply to I/O isolation. Two models accept universal power of either 24-60 Vac/dc or 85-230 Vac/dc, with ac usage accepting 45-400 Hz power. Accuracy is better than ±0.2%.