Allen-Bradley 1756-IA16

Product identity

Product overview

The 1756-IA16 is a ControlLogix digital input module for 120 V AC signals. Its 16 inputs are arranged in two groups of eight. Use the exact catalog number when documenting an existing input card; the individually isolated IA16I is a separate model.

Manufacturer

Allen-Bradley

Part number

1756-IA16

Product type

ControlLogix 16-channel AC digital input module

Series

ControlLogix 1756 I/O

Category

PLC and I/O modules

Technical reference

Channel configuration

16 (8 points/group)

Signal voltage category

120V AC 50/60 Hz

Backplane current at 5.1 V

100 mA

Backplane current at 24 V

2 mA

Total backplane power

0.58 W

Chassis slot width

1 slot

Catalog reference data reviewed 2026-09-08. Confirm the exact unit and application before ordering; these parameters do not establish interchangeability.

Before requesting this part

Provide the full catalog number, series marking, quantity and a photograph of the existing terminal assembly. Confirm whether the removable terminal block is required with the sourced unit. Have the signal voltage and group wiring checked against the installation documentation.

Exact-model checklist

• Copy 1756-IA16 from the installed label, including any additional suffix. 1756-IA16I is a separate isolated-input model; do not shorten it to IA16.
• State whether you need the module alone or a removable terminal block as well. Record the existing terminal-block identity for review.
• Include the series marking and installed application. Have the AC signal and wiring requirements checked against the exact module documentation.

Browse plc and i/o modules or read our verification process.

Classification terminology includes information from ETIM International under ODC Attribution 1.0.

Sourcing capabilities

Conditions considered on request

These are sourcing capabilities, not claims of current stock. Exact condition and evidence are stated in the quotation.

From requirement to a usable quote

Send the full MPN, quantity, acceptable condition, delivery country and required date. We may ask for missing identity or application details before sourcing.

A proposed quote must identify the exact item, revision where relevant, condition, quantity, price and currency, estimated lead time, delivery terms, warranty provider and scope, and validity. Supply remains subject to verification.

Read about hard-to-find part sourcing, replacement review or a multi-part requirement.