The Opto 22 G4IAC5 is an industrial digital AC input module used to sense the presence or absence of voltage from field devices and convert it to a 5 VDC logic signal for PLCs, controller brains, or a Raspberry Pi. It handles an input range of 90–140 VAC/VDC and offers up to 4,000 volts of transient optical isolation to protect sensitive control circuitry.
Technical Specifications
- Field Input Voltage Range: 90–140 VAC or VDC
- Control Logic Output: 5 VDC nominal (4.5–6 VDC supply range)
- Input Current at Max Line: 5 mA
- Output Sinking Current: 50 mA maximum
- Input Resistance: 28 kΩ
- Turn-on / Turn-off Time: 20 ms / 20 ms