Allen-Bradley 1791-16A0 Block I/O Input Module
$123.00
$320.00
Description
Allen-Bradley 1791-16A0 Block I/O Input Module
Configured for AC field signal acquisition in Allen-Bradley 1791 Block I/O systems, the Allen-Bradley 1791-16A0 (1791-16A0 Block I/O Input Module) provides direct electrical input processing through 16 AC input channels arranged in two groups.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1791-16A0 |
| Brand | Allen-Bradley |
| Product Type | Block I/O Input Module |
| Product Line | 1791 Block I/O |
| Origin | USA |
| Weight | 1.20 lbs |
| Operating Temp | 0 deg C to 60 deg C maximum |
| Power Consumption | Not specified in available documentation |
| Number of Inputs | 16 inputs |
| Number of Outputs | 0 outputs |
| Input Groups | 2 groups of 8 |
| Nominal Input Voltage | 120 VAC |
| Input Voltage Range | 79-132 VAC, 47-63 Hz |
| External Power Voltage | 85-132 VAC, 47-63 Hz |
| External Power Current | 150 mA |
| Input On-state Current | 5 mA minimum at 79 VAC |
| Input Off-state Voltage | 35 VAC maximum |
| Input Off-state Current | 2.3 mA minimum |
| Mounting Orientation | Vertical or horizontal |
| Maximum Surge Current | 10 A for 50 ms, repeatable every 2 s |
| Compatible Field Devices | Proximity switches, limit switches, selector switches, float switches, pushbutton switches |
| Maximum Output Rating | 600 mA at 30 deg C; 300 mA at 60 deg C |
Firmware and Industrial Control Compatibility
The 1791-16A0 operates as a distributed AC input acquisition module within Allen-Bradley PLC control architectures. The module provides localized signal conditioning for 16 discrete AC field inputs and transfers processed input states through the connected industrial control network.
The 1791 Block I/O platform supports I/O density scaling through modular field connection design. System integration requires compatibility between the selected PLC communication interface, controller firmware revision, and installed Block I/O configuration.
Frequently Asked Questions
Q: Does the 1791-16A0 provide output channels?
A: No. The module is configured with 16 AC input channels and does not provide output channels.
Q: Can the 1791-16A0 be installed in different orientations?
A: Yes. The module supports both vertical and horizontal mounting orientations.
Q: What type of field devices can connect to the input channels?
A: The module supports discrete AC field devices including proximity switches, limit switches, selector switches, float switches, and pushbutton switches.
Field Installation Guidelines
Install the module according to the control panel mechanical layout and maintain the specified mounting orientation requirements.
Route AC input wiring separately from low-level communication and analog signal conductors to reduce electromagnetic interference. Use appropriate terminal identification and conductor labeling during field termination.
Connect protective grounding and panel bonding according to the applicable industrial electrical installation practices. Verify that connected field devices operate within the specified AC input voltage range before applying power.
Confirm external power wiring polarity, voltage level, and frequency requirements before commissioning. Inspect field cable insulation and termination points to prevent incorrect input states caused by wiring faults.
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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