Description
Product Name: 1756-OA16I/A Allen Bradley Central control module
Product details:
The 1756-OA16I/A is a ControlLogix chassis-based Digital AC Output Module. It is designed to provide 16 individually isolated AC output points for interfacing the ControlLogix system with high-power, real-world AC devices such as solenoids, motor starters, indicator lights, and alarms. The “I” in the part number signifies its Isolated nature, which provides enhanced protection and flexibility for connecting different output power sources.
Technical Specifications (Based on 1756-OA16I)
| Parameter | Value |
| Product Line | ControlLogix |
| Module Type | Digital AC Output Module |
| Number of Outputs | 16 Individually Isolated Outputs |
| Output Voltage | 120/240 Volts AC |
| Operating Voltage Range | 74–265 VAC |
| Max Continuous Current (per Point) | 2 A @ 30 °C (86 °F) (Linear Derating to 1 A @ 60 °C) |
| Max Continuous Current (per Module) | 5 A @ 30 °C (86 °F) (Linear Derating to 4 A @ 60 °C) |
| Output Delay Time (OFF to ON) | 9.3 ms @ 60 Hz; 11 ms @ 50 Hz |
| OFF-state Leakage Current | 3 mA per point |
| Backplane Current @ 5.1 VDC | 225 mA – 300 mA |
| Power Dissipation (Max) | 5.5 Watts @ 60 °C |
| Isolation Voltage | 50 Volts Continuous |
| Required Terminal Block | 1756-TBCH or 1756-TBS6H (Must be ordered separately) |
✅ Product Advantages
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Individual Output Isolation: This is a major benefit. Each output point is electrically isolated from the others. This allows users to connect outputs to different phases or different voltage sources, providing maximum wiring flexibility and reducing the risk of a short on one output affecting other points.
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High Power Capacity: With a 2 Amp per point rating (at lower temperatures), it can directly drive larger loads like solenoids and small contactors, often eliminating the need for intermediate relays.
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High Density: Offering 16 outputs in a single module minimizes the required chassis slots, saving panel space and reducing overall system cost.
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Robust ControlLogix Platform: It benefits from the high-speed communication and robust architecture of the ControlLogix platform, ensuring reliable and fast I/O response.
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Diagnostic Capabilities: As a ControlLogix module, it supports various diagnostics, simplifying troubleshooting.
⚠️ Important Considerations (Notes)
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Terminal Block: The module does not include the removable terminal block (RTB). You must purchase the 1756-TBCH (high-density, spring-clamp) or 1756-TBS6H (screw-clamp) separately.
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AC Voltage Only: This module is specifically for switching Alternating Current (AC) loads, typically 120/240 VAC. It cannot be used for DC loads.
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Derating: Be aware of the current derating. The maximum continuous current per point and per module decreases as the ambient operating temperature rises. Ensure your application stays within the specified limits.
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Load Type: The module uses triac switching elements, which are best suited for AC loads.
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Series A: The “/A” denotes the revision level (Series A). Always ensure that the firmware of your ControlLogix controller and the version of your programming software (Studio 5000/RSLogix 5000) are compatible with the module’s series.
🏭 Product Applications
The 1756-OA16I/A is typically used in industrial automation systems where a PLC needs to control high-voltage AC devices. Common applications include:
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Motor Control Centers (MCCs): Controlling the coils of motor starters and contactors.
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Process Control: Activating large solenoid valves on fluid or gas lines.
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Machine Control: Operating indicators, horns, lamps, and other signaling devices.
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Building Automation: Switching high-voltage lighting circuits or HVAC dampers.
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General Discrete Manufacturing: Any application requiring the switching of 120/240 VAC loads in a multi-point, isolated configuration.
Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!
We have the same series of models in stock. If you don’t find the model you need, please contact us and we will provide you with an official quotation！
Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: Sweden
Price: Please contact us Product weight：0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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