1756-OA16I Allen Bradley Rockwell Digital AC Output Module

Product parameters

Product Model: 1756-OA16I

Type: Isolated AC Digital Output Module

Output points: 16 points, independently isolated (each point is independently isolated, no isolation between groups)

Output voltage range: 74-265V AC, 47-63 Hz

Nominal voltage: 120/240V AC

Output current:

Each point: 2 A @ 30°C, 1 A @ 60°C (linear derating)

Total module: 5 A @ 30°C, 4 A @ 60°C

Surge current: 20 A per point, lasting for 43 ms (repeatable every 2 seconds, @60 °C)

Minimum load current: 10 mA per point

Maximum off-state leakage current: 3 mA per point

Voltage drop in the conduction state: Up to 1.5V AC @ 2 A

Power dissipation: Maximum 5.5W at 60°C

Heat dissipation: 18.76 BTU/hr at 60°C

Output delay time:

OFF to ON: 9.3 ms @ 60 Hz, 11 ms @ 50 Hz

ON to OFF: 9.3 ms @ 60 Hz, 11 ms @ 50 Hz

Isolation voltage:

Channel to backplane: 250V (continuous), basically insulated, test voltage 1350V AC, lasting for 2 seconds

Channel-to-channel: 250V (continuous), basic insulation, test voltage 1350V AC, lasting for 2 seconds

Wire size:

1756-TBCH: 0.33-2.1 mm² (22-14 AWG, single line), 0.33-1.3 mm² (22-16 AWG, double line)

1756-TBS6H: 0.33-1.3 mm² (22-16 AWG, single line)

Connector: 36-pin removable terminal block (RTB, such as 1756-TBCH or 1756-TBS6H)

Operating temperature range: 0-60°C (32-140°F)

Storage temperature range: -40 to 85°C (-40 to 185°F)

Working humidity: 5-95% (no condensation)

Impact rating: 30G (in operation), 50G (not in operation)

Vibration level: 2G @ 10-500 Hz

Installation method: Install on ControlLogix racks (compatible with 1756-A4, A7, A10, A13, A17)

Certifications: CE, CSA, UL, FM, IECEx, ATEX, RCM, KC, EAC (as of June 2025)

Temperature code: T4A (North America), T4 (ATEX and IEC)

Shell type: Open Enclosure

UPC: 612598171361

Function

Isolated AC output

It provides 16 independently isolated AC output channels, supporting 74-265V AC, and is suitable for controlling AC loads such as relays, solenoid valves, indicator lights or motor starters.

Each point is independently isolated (channel-to-channel and channel-to-backplane), reducing ground loops and electromagnetic interference, and is suitable for complex electrical environments.

Each point supports 2 A (30°C) or 1 A (60°C), and the total current of the module can be up to 5 A (30°C) or 4 A (60°C).

Status control

Supports Fault Mode and Program Mode at each point, which can be configured as ON, OFF or remain in the final state (default OFF).

Support Scheduled Outputs with a synchronization time of up to 16.7 seconds to ensure precise control.

Diagnosis and Monitoring

The LED indicator light shows the output status, communication status and module health status.

There is no internal circuit breaker or advanced diagnostic function (such as open circuit/load loss detection of 1756-OA8D).

Network integration

Communicate with the ControlLogix controller via ControlNet or EtherNet/IP network, supporting local or distributed I/O architecture.

Supports hot plugging (RIUP), which is convenient for maintenance and replacement.

Software configuration:

Configured using the Studio 5000 Logix Designer software, it supports point-level configuration, communication formats (rack optimization, direct connection, scheduling output), and Add-On Profiles (AOP).

No internal fuse:

The module does not have an internal fuse. It is recommended to install an external fuse to protect the module. The size of the fuse should be selected based on a current of 2A at each point.

Application scenarios

Industrial automation control

Control AC equipment in the production line, such as relays, solenoid valves, indicator lights or small motor starters, suitable for manufacturing, automotive assembly and packaging systems.

The isolation design at each point is suitable for complex electrical environments and reduces interference.

Process control

In the petrochemical, power or water treatment industries, drive AC loads such as pumps, valves or alarm devices.

High inrush current support (20 A, 43 ms) is suitable for starting high-impact loads.

Distributed control system: It is integrated into large-scale factory automation systems as a remote I/O component through ControlNet or EtherNet/IP networks.

High-reliability scenarios: Isolation at each point enhances system reliability and is suitable for critical infrastructure or scenarios requiring high electrical isolation.

General AC load control: Suitable for controlling alarms, buzzers or contactors, and widely used in factory automation.

Advantage Products:

All items are Distributor Ready-stock Genuine Brand-new Supplying, please inform us if the other conditions are needed, Used, Open-box, Refurbished, etc.

Many Available just wait for you, feel free to ask to get better deal!!!

Bou L(Sales Manager)            

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