The ACT-4I and ACT-4V isolated four-wire transmitters accept ac current or voltage input signals and generate a proportional 4-20mA process output current.
For complete safety, internal transformers isolate the input and enable the ACT-4I and the ACT-4V to withstand large momentary input signals.
The ACT-4 units can be ordered to be powered either by 230/115 Vac (50/60Hz) or by 22 - 66 Vdc.
The ACT-4 transmitters are housed in a polycarbonate plastic enclosure mounted on a standard DIN rail