Allen-Bradley 1794-IA16 FLEX I/O 16-Point 120V AC Digital Input Module
Allen-Bradley 1794-IA16 is a FLEX I/O digital input module with 16 non-isolated 120 V AC inputs that read line-voltage signals directly — no interposing relays required.
Overview
The 1794-IA16 accepts sixteen 74…132 V AC discrete signals such as line-voltage limit switches, pushbuttons and motor starter auxiliaries. It draws only 20 mA from the FlexBus, shows the state of every point on 16 yellow indicators, and mounts on the full family of 1794 TB3/TBN terminal bases.
Key Features
- 16 non-isolated digital inputs, 74…132 V AC on-state window
- 12 mA nominal input current at 120 V AC
- Off-state limits: 20 V AC maximum voltage
- FlexBus draw only 20 mA
- 16 yellow point-status indicators; keyswitch position 8
- Works with 1794-TB3/TB3S/TBN/TB3K/TB3SK/TBNK terminal bases
- Open-style enclosure; DIN rail mount
Technical Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Product Line | FLEX I/O (1794) |
| Series | FLEX I/O 1794 |
| Part Number / Catalog No. | 1794-IA16 |
| UPC | 612598179913 |
| Product Type | Digital AC Input Module (FLEX I/O) |
| Number of Inputs | 16, non-isolated |
| On-state Voltage | 74…132 V AC |
| Off-state Voltage | 20 V AC maximum |
| On-state Current | 5.49 mA minimum; 12 mA nominal at 120 V AC; 14.81 mA maximum |
| Off-state Current | 2.9 mA minimum |
| FlexBus Current | 20 mA |
| Indicators | 16 yellow status indicators |
| Keyswitch Position | 8 |
| Terminal Base | 1794-TB3, TB3S, TBN, TB3K, TB3SK, TBNK |
| Dimensions (H × W × D) | 9.4 x 9.4 x 6.9 cm (3.7 x 3.7 x 2.7 in) |
| Weight | 0.56 lbs (0.26 kg) |
| Operating Temperature | 0 to 55 °C (32 to 131 °F) |
| Country of Origin | Singapore |
Applications
The 1794-IA16 is the standard choice for interfacing 120 V AC field signals in North-American style panels — starter auxiliaries, line-voltage limit switches and pilot devices — in water treatment, material handling and building automation retrofits.
Why Buy from Us
This module is available new in original factory packaging, fully tested and backed by a standard warranty of 1 year. We ship worldwide with careful anti-static packaging and fast dispatch. Quantity discounts and repair/exchange options are available on request.
Documents
INSTALLATION INSTRUCTIONS
| Resource | Title | Link |
|---|---|---|
| Publication | 1794-IN102 — FLEX I/O Digital Input Modules (1794-IA16) Installation Instructions (English) | 1794-in102_-en-p.pdf |
