The Allen-Bradley 1756-IA16 is a high-performance AC input module engineered for the Rockwell Automation ControlLogix platform, designed to accurately monitor 16 discrete 120V AC signals from field devices such as limit switches, proximity sensors, and pushbuttons. This module delivers exceptional reliability and electrical isolation, making it ideal for demanding industrial environments where noise immunity and signal integrity are critical. Each input channel is optically isolated from the backplane and other channels, ensuring safe operation and minimizing the risk of ground loops. The 1756-IA16 supports a wide operating temperature range and is built to withstand vibration and electrical transients common in manufacturing plants, oil and gas facilities, and process control systems. With its compact form factor and straightforward wiring via removable terminal blocks, it simplifies installation and maintenance, while its compatibility with the full ControlLogix family allows for flexible system configuration and scalability.
| Specification |
Details |
| Product Type |
ControlLogix AC Input Module |
| Model Number |
1756-IA16 |
| Number of Inputs |
16 (sink/source) |
| Input Voltage Rating |
120V AC (nominal), 50/60 Hz |
| Input Voltage Range |
85-132V AC |
| Input Current per Point |
12 mA typical at 120V AC |
| Off-State Voltage |
≤ 30V AC |
| Off-State Current |
≤ 2 mA |
| On-State Voltage Threshold |
≥ 70V AC |
| On-State Current Threshold |
≥ 5 mA |
| Input Delay (ON to OFF) |
10 ms typical (selectable via software) |
| Input Delay (OFF to ON) |
10 ms typical (selectable via software) |
| Isolation Voltage |
1500V AC continuous (channel-to-backplane) |
| Power Consumption |
3.5W (max) from backplane |
| Backplane Current |
100 mA at 5V DC, 50 mA at 24V DC |
| 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 |
5g Standard Models 10-500 Hz (operating) |
| Shock Resistance |
30g (operating), 50g (non-operating) |
| Wiring Style |
Removable terminal block (16-position) |
| Module Keying |
Electronic keying (software configurable) |
| Status Indicators |
Green LED per channel (input on), red fault LED |
| Compatible Chassis |
1756-A4, A7, A10, A13, A17, A17R |
| Compatible Controllers |
1756-L6x, L7x, L8x series |
| Approvals |
UL, CSA, CE, ATEX (Zone 2), IECEx |
| Weight |
Approximately 0.25 kg (0.55 lb) |
| Dimensions (H x W x D) |
14.0 x 5.0 x 12.7 cm (5.5 x 2.0 x 5.0 in) |
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