The 1756-IA16I is a high-performance Allen-Bradley ControlLogix AC input module engineered for demanding industrial environments. This 16-channel isolated input module operates at 100/120V AC, providing galvanic isolation between each input channel to eliminate ground loops and electrical noise interference. Designed for use with ControlLogix chassis (1756-A4, A7, A10, A13, A17), it supports hot-swappable installation and is fully compatible with all ControlLogix controllers, including 1756-L6x, L7x, and L8x series. The module features individual input status indicators, software-configurable input filters, and a robust isolation rating of 2500V AC for channel-to-backplane separation. Ideal for discrete sensing in motor control centers, conveyor systems, and packaging lines, the 1756-IA16I ensures reliable signal acquisition in high-voltage AC environments.
| Parameter |
Specification |
| Product Type |
AC Input Module |
| Model Number |
1756-IA16I |
| Manufacturer |
Allen-Bradley / Rockwell Automation |
| Number of Inputs |
16 channels (isolated) |
| Input Voltage Range |
85–132V AC (nominal 100/120V AC) |
| Input Frequency |
47–63 Hz |
| Input Current (per channel) |
8 mA typical at 120V AC |
| Isolation Voltage |
2500V AC channel-to-backplane (continuous) |
| Input Filter Time |
Software selectable: 1 ms, 2 ms, 5 ms, 10 ms |
| Off-State Voltage |
< 30V AC |
| On-State Voltage |
> 70V AC |
| Backplane Current (5V DC) |
250 mA typical |
| Backplane Current (24V DC) |
0 mA (module does not use 24V rail) |
| Power Dissipation |
3.5 W typical |
| Thermal Dissipation |
11.9 BTU/hr typical |
| Indicators |
16 green LED status indicators (one per input), 1 green module status LED |
| Connector Type |
Removable terminal block (RTB) – 1756-TBCH or 1756-TBS6H |
| Wiring Category |
Class I, Division 2 (hazardous locations) |
| Operating Temperature |
-20°C to +60°C (-4°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 at 10–500 Hz (operating) |
| Shock Resistance |
30 g (operating), 50 g (non-operating) |
| Dimensions (H x W x D) |
144 mm x 35 mm x 105 mm (5.67 in x 1.38 in x 4.13 in) |
| Weight |
0.22 kg (0.49 lb) |
| Compatible Chassis |
1756-A4, A7, A10, A13, A17 (single-slot module) |
| Compatible Controllers |
ControlLogix 1756-L6x, L7x, L8x series |
| Certifications |
CE, cULus, ATEX, IECEx, RoHS compliant |
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