Allen-Bradley 1791-16AC Block I/O Module
$123.00
$320.00
Description
Allen-Bradley 1791-16AC Block I/O Module
Configured for remote I/O signal acquisition and actuator output control in Allen-Bradley 1791 Block I/O systems, the Allen-Bradley 1791-16AC (1791-16AC Block I/O Module) provides direct physical/electrical execution through 16 AC input channels and 16 AC output channels.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1791-16AC |
| Brand | Allen-Bradley |
| Product Type | Block I/O Module |
| Product Line | 1791 Block I/O |
| Origin | USA |
| Weight | 1.80 lbs |
| Power Consumption | 31.3 W maximum |
| Number of Inputs | 16 AC inputs |
| Number of Outputs | 16 AC outputs |
| Number of Points | 32 points |
| Input Voltage | 120 VAC nominal |
| Input Voltage Range | 79-132 VAC, 47-63 Hz |
| Output Voltage Range | 20-132 VAC |
| External Power Supply | 85-132 VAC, 47-63 Hz |
| External Power Current | 150 mA at 132 VAC |
| Input Groups | 2 groups of 8 inputs |
| Nominal Input Current | 11 mA |
| Input On-state Current | 12.3 mA maximum at 132 VAC |
| Input Off-state Voltage | 35 VAC maximum |
| Input Off-state Current | 2.3 mA minimum |
| Mounting Orientation | Vertical or horizontal |
| Thermal Dissipation | 106.73 BTU/Hr maximum |
| Current Rating | 150/300 mA |
EtherNet/IP and PLC Backplane I/O Architecture
The 1791-16AC Block I/O Module is designed for distributed machine control architectures requiring localized AC signal termination. The module integrates input conditioning, output switching circuitry, PLC interface electronics, and external power handling within a single block-style enclosure.
The I/O density configuration provides 16 input points and 16 output points for connection of AC field devices. Signal processing circuitry performs input state recognition and output command execution between field wiring and the connected Allen-Bradley controller network.
Frequently Asked Questions
Q: Does the 1791-16AC support hot-swapping during controller operation?
A: The available documentation does not specify hot-swap capability. Installation and replacement should be performed according to the applicable controller system power isolation procedures.
Q: What is the external power requirement for output operation?
A: The module requires an external supply of 85-132 VAC at 47-63 Hz, with a specified external current rating of 150 mA at 132 VAC.
Q: How are the input channels organized internally?
A: The 16 input channels are arranged as two groups of eight inputs for AC signal connection and field wiring organization.
Field Installation Guidelines
Install the 1791-16AC module on a suitable industrial mounting surface using the specified vertical or horizontal mounting orientation.
Terminate AC field wiring according to the applicable electrical installation standards. Separate AC power conductors from low-level communication or instrumentation wiring to reduce electrical interference.
Connect protective grounding and enclosure bonding according to the control panel grounding design. Maintain proper cable routing practices, including separation of high-voltage switching conductors from sensitive signal circuits.
Verify input voltage levels, output load requirements, and external power wiring before energizing the module. Confirm that connected field devices match the specified AC voltage operating ranges.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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