The 1769-IA8I is a critical component in the Allen-Bradley CompactLogix family, designed to provide reliable and isolated AC input sensing for demanding industrial automation applications. This 8-point module accepts standard 120/240VAC signals, featuring individual channel isolation to prevent ground loops and electrical noise from compromising system integrity. Whether used in motor control centers, packaging lines, or material handling systems, the 1769-IA8I delivers precise input detection with built-in filtering, ensuring stable operation in electrically noisy environments. Its compact, modular design allows for efficient installation alongside other 1769-series I/O modules, reducing panel space and wiring complexity. With support for both local and remote I/O configurations via the CompactBus, this module is an ideal choice for scalable, high-availability control systems.
| Parameter |
Specification |
| Product Series |
1769 Compact I/O |
| Model Number |
1769-IA8I |
| Input Type |
AC (Alternating Current) |
| Number of Inputs |
8 (Isolated) |
| Input Voltage Range |
85–265 VAC (47–63 Hz) |
| Input Current per Channel |
5.5 mA at 120 VAC, 11 mA at 240 VAC |
| Input On-State Voltage |
≥ 79 VAC |
| Input Off-State Voltage |
≤ 20 VAC |
| Input On-State Current |
≥ 3.5 mA |
| Input Off-State Current |
≤ 1.0 mA |
| Isolation Voltage |
1500 VAC (channel-to-bus and channel-to-channel) |
| Input Filter Time |
8 ms (typical, fixed) |
| Backplane Current (5V DC) |
50 mA (typical) |
| Backplane Current (24V DC) |
0 mA (AC module) |
| Power Dissipation |
2.0 W (maximum) |
| Thermal Dissipation |
6.8 BTU/hr (maximum) |
| Operating Temperature |
0°C to 60°C (32°F to 140°F) |
| Storage Temperature |
-40°C to 85°C (-40°F to 185°F) |
| Relative Humidity |
5% to 95% (non-condensing) |
| Vibration Resistance |
5 g Standard Models 10–500 Hz (operating) |
| Shock Resistance |
30 g (operating), 50 g (non-operating) |
| Enclosure Type |
Open-style (IP20 rated) |
| Wiring Type |
Removable terminal block (18–24 AWG) |
| Indicators |
Green LED per channel (input status) |
| Bus Interface |
CompactBus (local or remote via 1769-ECR/1769-ENBT) |
| Dimensions (H x W x D) |
118 mm x 40 mm x 87 mm (4.65 in x 1.57 in x 3.43 in) |
| Weight |
Approximately 0.15 kg (0.33 lb) |
| Certifications |
UL 508, CSA C22.2 No. 142, CE, RoHS |
| Compatible Controllers |
CompactLogix (e.g., 1769-L30ER, 1769-L36ERM), MicroLogix 1500 (with 1769-ECR) |
| Application Notes |
For use with AC sensors, limit switches, and pushbuttons; requires external power supply (e.g., 1769-PA2 or 1769-PB2) |
What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22