Allen-Bradley 1756-OB16I

Product identity

Product overview

The 1756-OB16I is a ControlLogix digital output module with 16 individually isolated outputs. Its source specification lists a 12/24 V DC sink/source signal category. Current capacity is temperature-dependent, so channel count alone is insufficient for selecting an output card.

Manufacturer

Allen-Bradley

Part number

1756-OB16I

Product type

Allen-Bradley 1756-OB16I — 16-channel individually isolated DC output module

Series

ControlLogix 1756 I/O

Category

PLC and I/O modules

Technical reference

Channel configuration

16 individually isolated

Signal voltage category

12/24V DC sink/source

Backplane current at 5.1 V

350 mA

Backplane current at 24 V

2.5 mA

Total backplane power

1.8 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

Retain the final I in the requested catalog number and provide the hardware-series marking. Supply the load current and ambient-temperature requirement for review. Confirm the terminal-block requirement and use the exact installation manual for wiring and protection decisions.

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.