| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Part Number/Catalog No. | 1734-IA4 |
| Series | POINT I/O |
| Wiring configuration | Sink wiring |
| Module Type | Digital AC Sinking Input |
| On State Voltage, minimum | 65 VAC |
| Inputs | 2 or 1 group of 4 |
| On State Voltage, maximum | 132 VAC |
| Nominal Input Voltage | 120 VAC |
| POINTBus Current | 75 milliamps |
| Maximum off-state voltage | 43 VAC |
| Power Dissipation | 0.1 Watts Maximum |
| Input Current range | 4.0-8.5mA |
| Thermal Dissipation | 3.4 BTU Maximum |
| Dimensions | 2.21 x 0.47 x 2.97 inches |
| Module location | 1734-TB, 1734-TBS, 1734-TOP, or 1734-TOPS wiring base assembly |
| Weight | 30.9 g (1.09 oz) |
| Power Dissipation | 0.50 W @ 132 VAC |
| Number of Inputs | 4 |
| Type of Inputs | Non-isolated, Sinking |
| Enclosure Rating | None (open-style) |
| UPC | 10612598347138 |
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