Featuring 8 channels, Model 750-1425 is suitable for connecting to motor thermal monitoring PTC thermistors per DIN 44081/44082 standards. Up to 6 PTC thermistors can be connected in series per channel minimizing system footprint. Providing overload protection of motors within I/O node, PTC Digital Input Module features onboard diagnostics for short circuit, wire break, and out-of-measurement range as well as red/green LEDs that indicate over-temperature and wiring errors.