Allen-Bradley 1756-IA32 AC Input Module

Series#: AllenBradley

Product Details

1756-IA32 Allen-Bradley ControlLogix AC Input Module – 32-Point, 120V AC Discrete Input Solution.
High-density 32-point design reduces panel space and wiring complexity in large-scale automation systems.
Rugged industrial construction with optical isolation for reliable signal integrity in noisy environments.
Hot-swappable under ControlLogix backplane – minimal downtime during maintenance or expansion.
Direct compatibility with Allen-Bradley 1756 chassis and Controllogix/CompactLogix controllers.
Extended temperature range and UL/CE/ATEX certifications for global deployment.
100% Brand New & Original, securely packed and ready for reliable global shipping.

Specification

The Allen-Bradley 1756-IA32 is a high-performance 32-point AC input module designed for the ControlLogix platform, delivering precise and reliable discrete signal acquisition in demanding industrial environments. Engineered to accept 120V AC input signals, this module offers optical isolation per channel to protect against electrical noise and transient surges, ensuring stable communication with the controller. The 1756-IA32 is ideal for monitoring limit switches, pushbuttons, proximity sensors, and other AC-powered devices in manufacturing lines, power plants, and process control systems. Its compact 32-point density maximizes I/O count per slot, while the hot-swappable design allows for module replacement without powering down the chassis. Backed by Allen-Bradley’s rigorous quality standards, the 1756-IA32 supports global certifications including UL, CE, and ATEX, making it a trusted choice for both North American and international automation projects.

Parameter	Specification
Model	1756-IA32
Product Type	AC Input Module
Number of Inputs	32 (sink/source configurable)
Input Voltage Rating	120V AC (nominal), 85–132V AC operating range
Input Frequency	47–63 Hz
Input Current per Point	10 mA (typical at 120V AC)
Off-State Voltage	≤ 40V AC (maximum)
On-State Voltage	≥ 80V AC (minimum)
Isolation Voltage	1500V AC (channel-to-backplane, 1 minute)
Response Time (Off to On)	1 ms (typical)
Response Time (On to Off)	10 ms (typical)
Module Type	Standard-density, 32-point
Backplane Current Consumption	5V DC: 150 mA (typical) / 24V DC: 2 mA (typical)
Power Dissipation	2.5 W (typical)
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)
Wiring Style	Removable terminal block (RTB) – 40-pin, 3.81 mm pitch
Indicators	Green LED per point (input status), red LED (module fault)
Certifications	UL 508, CSA C22.2 No. 142, CE (EN 61131-2), ATEX Zone 2 (II 3 G)
Weight	Approximately 0.25 kg (0.55 lb)
Dimensions (H x W x D)	144 mm x 38 mm x 100 mm (5.67 in x 1.50 in x 3.94 in)
Compatible Chassis	1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17, 1756-A20
Compatible Controllers	ControlLogix 1756-L6x, 1756-L7x, 1756-L8x (all firmware versions)