Product Details
Overview
The Allen-Bradley 1756-OA16I is a high-performance ControlLogix digital AC output module featuring 16 individually isolated points. Designed for reliable switching of AC loads in control systems, it provides precise output timing, robust isolation, and efficient power handling suitable for demanding industrial environments.
Technical Specifications
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Manufacturer: Allen-Bradley (Rockwell Automation)
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Model / Part Number: 1756-OA16I
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Product Type: Digital AC Output Module
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Product Line: ControlLogix
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Number of Outputs: 16 isolated AC outputs
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Output Voltage: 120/240 VAC
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Operating Voltage Range: 74–265 VAC
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OFF-to-ON Delay Time: 9.3 ms @ 60 Hz, 11 ms @ 50 Hz
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OFF-State Leakage Current: 3 mA per point
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Continuous Current per Point: 2 A @ 30°C, 1 A @ 60°C (linear derating)
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Maximum Continuous Module Current: 5 A @ 30°C, 4 A @ 60°C
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Backplane Current: 225 mA @ 5.1 VDC; 3 mA @ 24 VDC
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Power Dissipation (Max): 5.5 W @ 60°C
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Isolation Voltage: 50 V continuous
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Removable Terminal Blocks: 1756-TBCH, 1756-TBS6H
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Enclosure: Open-type, no enclosure required
Key Features
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16 individually isolated outputs for flexible AC load control
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Supports both 120 VAC and 240 VAC systems
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Fast OFF-to-ON switching ensures accurate output timing
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Linear derating accommodates high-temperature operation
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Removable terminal blocks simplify wiring and maintenance
Applications
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AC load control in ControlLogix systems
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Lighting, motor, and solenoid control
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Integration with high-voltage discrete control systems
FAQs
Q1: What is the maximum current per output?
Each output supports 2 A at 30°C and 1 A at 60°C, with module max 5 A / 4 A.
Q2: Does the module support isolated outputs?
Yes, all 16 points are individually isolated for safe AC operation.
Q3: Can it be installed without an enclosure?
Yes, the module is open-type and does not require an enclosure.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Mastering Wire Identification in Industrial Automation: The Power of Ferrules and Cross-Ferruling
Proper wire labeling forms the cornerstone of reliable control system installation and long-term maintenance. In complex industrial automation environments, technicians terminate thousands of conductor ends inside control panels, marshalling racks, and field junction boxes. Ferrules serve as individual tube-shaped sleeve markers slipped onto conductors before final termination. While technicians historically relied on pre-printed individual letter rings, modern control panel builders utilize automated ferrule printing machines. These thermal-transfer printers generate durable, single-sleeve heat-shrink tags directly matching approved wiring schematics, significantly accelerating cabinet assembly workflows.
Understanding Marshalling Cabinets in Industrial Automation and Control Systems
Marshalling cabinets serve as the crucial connection hub between field instruments and centralized processing units. In large DCS and PLC control system architectures, hundreds of multipair field cables run from local junction boxes to the central instrument equipment room. The marshalling cabinet houses field terminal blocks, surge arresters, intrinsic safety isolation barriers, and interposing relays. By segregating field field-wiring terminations from sensitive processor hardware, engineers protect expensive controller backplanes from high-voltage transients. Consequently, this modular separation dramatically streamlines maintenance workflows and simplifies system expansion.
Essential Best Practices for PLC Wiring and Installation in Industrial Automation
Successful control system deployment begins with thoroughly reviewing manufacturer technical documentation. Controllers from major brands like Allen-Bradley, Siemens, and Schneider Electric feature unique terminal layouts. Engineers must verify voltage requirements before connecting power cables to prevent catastrophic equipment damage. Standard line connections require strict adherence to regional electrical codes and proper wire color coding. Furthermore, panel builders should always establish a robust low-impedance ground connection using at least 16-AWG copper conductor tied directly to the main plant grounding grid.