What Are the Specifications and Datasheet Details of the Allen Bradley 1769-IA16
2026-09-24
When specifying a Compact I/O system, engineers and maintenance teams often need precise, verifiable data before committing to a part number. The Allen Bradley 1769-IA16 is a 16-point 120VAC digital input module designed for the 1769 Compact I/O family, and it remains one of the most widely deployed AC input cards in North American panel builds. Feimu supplies and supports this module with full traceability, so the technical details below reflect the actual datasheet values you should design around.
Core Specifications of the Allen Bradley 1769-IA16
The table below summarizes the primary electrical and physical characteristics of the Allen Bradley 1769-IA16.
| Parameter | Specification |
|---|---|
| Catalog Number | Allen Bradley 1769-IA16 |
| Module Type | Compact I/O Digital AC Input |
| Input Points | 16 (2 groups of 8, isolated) |
| Input Voltage Category | 120VAC (79–132VAC) |
| Nominal Input Current | 10 mA per point at 120VAC |
| Input Frequency | 47–63 Hz |
| On-State Voltage | 79VAC minimum |
| Off-State Voltage | 20VAC maximum |
| Input Delay | 10 ms typical (on/off) |
| Backplane Current | 115 mA at 5.1V DC |
| Isolation | 250V (continuous), basic insulation |
| Wiring | Removable terminal block, 22–14 AWG |
| Operating Temperature | 0°C to +60°C |
| Dimensions | 118 x 87 x 35 mm |
Key Datasheet Details That Affect Design
Several datasheet parameters deserve attention during panel layout and commissioning.
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Grouping and Isolation: The Allen Bradley 1769-IA16 splits its 16 points into two isolated groups of eight. Each group has its own common terminal, which allows mixed AC sources or separate circuits without cross-talk.
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Voltage Tolerance: The module tolerates 79–132VAC, making it suitable for nominal 120VAC systems with normal utility fluctuation. It is not intended for 240VAC service.
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Backplane Load: At 115 mA from the 5.1V backplane, power budgeting for the CompactLogix or MicroLogix controller must account for this draw alongside other 1769 modules.
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Response Time: A 10 ms typical delay suits standard discrete sensing but is not appropriate for high-speed registration or encoder applications.
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Terminal Block: The removable terminal block (RTB) simplifies field wiring replacement. Feimu recommends verifying the RTB part number separately, as it is often ordered independently.
Compatibility and Installation Notes
The Allen Bradley 1769-IA16 installs in any standard 1769 Compact I/O chassis and communicates through the backplane to CompactLogix, MicroLogix 1500, and associated controllers. Up to 16 modules can be placed in a single bank, with additional banks added through expansion cables. Mechanical keying prevents accidental insertion of the wrong module type.
For wiring, each group of eight inputs shares a common return. Field devices such as limit switches, pushbuttons, and relay contacts are wired between the AC supply and the input terminal. Because the inputs are AC, polarity is not a concern, which simplifies troubleshooting in legacy panels.
Allen Bradley 1769-IA16 FAQ
Q: What is the input voltage range of the Allen Bradley 1769-IA16?
A: The module operates with an on-state voltage of 79VAC minimum and accepts a nominal 120VAC supply within a 79–132VAC range at 47–63 Hz. It is designed for 120VAC control circuits, not 24VDC or 240VAC applications.
Q: How many inputs does the Allen Bradley 1769-IA16 provide and how are they grouped?
A: It provides 16 AC input points arranged in two isolated groups of eight. Each group has a separate common terminal, allowing independent circuits and improving noise immunity in mixed panels.
Q: Can the Allen Bradley 1769-IA16 be used with a CompactLogix controller?
A: Yes. The module is fully compatible with CompactLogix and MicroLogix 1500 systems through the 1769 backplane. It draws 115 mA at 5.1V DC, so backplane power must be calculated during system design.
Q: What is the typical input delay of the Allen Bradley 1769-IA16?
A: The datasheet specifies approximately 10 ms typical for both on and off transitions. This is suitable for standard discrete sensing but not for high-speed counting or position registration tasks.
Q: Is the Allen Bradley 1769-IA16 still available and supported?
A: The module remains an active catalog item with broad installed base support. Feimu maintains stock and provides technical documentation, replacement terminal blocks, and compatibility guidance for retrofit projects.
Contact Us
For pricing, datasheet verification, or compatibility confirmation on the Allen Bradley 1769-IA16, contact Feimu today. Our team provides responsive technical support and reliable delivery for your Compact I/O requirements.