Allen-Bradley 1756-OA16I ControlLogix Digital AC Output Module

Product Overview

The Allen-Bradley 1756-OA16I serves as a high-density discrete output solution for the ControlLogix platform. This module features 16 individually isolated outputs, providing superior electrical separation between channels to prevent ground loops and cross-talk in complex industrial circuits. It interfaces directly with field devices such as motor starters, solenoid valves, and indicators operating within a wide 74-265 VAC range. We guarantee this unit is 100% Brand New and ships in original factory packaging to ensure maximum lifecycle reliability.

Technical Specifications

The following table outlines the critical electrical and physical parameters for the 1756-OA16I:

Engineering Advantages

• Total Channel Isolation: Unlike standard grouped modules, the 1756-OA16I isolates every single point. This design allows you to mix different AC phases or separate power sources on the same module without risking catastrophic hardware failure or signal interference.

• Thermal Efficiency: The module manages power dissipation effectively, maintaining 5.5 Watts at peak load. This reduces the heat load within your PLC enclosure, extending the lifespan of neighboring processors and communication bridges.

• Rapid Fault Recovery: By utilizing the 1756-TBCH (36-pin) Removable Terminal Block, maintenance teams can swap modules in seconds without disconnecting individual field wires. This minimizes "Mean Time to Repair" (MTTR) during critical system outages.

• Robust Load Handling: Supporting up to 2 Amps per point at 30 °C, this module handles high-inrush inductive loads common in heavy-duty manufacturing environments, eliminating the need for interposing relays in many applications.

FAQs

• Q: Does this module require a specific Removable Terminal Block (RTB)?

• A: Yes. The 1756-OA16I requires either the 1756-TBCH (Cage clamp) or the 1756-TBS6H (Spring clamp). You must purchase these separately as they do not ship with the module.

• Q: Can I use the 1756-OA16I for DC voltage applications?

• A: No. This module utilizes Triac outputs specifically designed for AC switching. Attempting to switch DC loads will result in the output failing to turn off once energized.

• Q: What happens if the internal temperature exceeds 60 °C?

• A: The module requires linear derating. Operating beyond 60 °C (140 °F) risks hardware damage. We recommend maintaining proper enclosure ventilation to keep the continuous current within the specified 4 A module limit.

• Q: Is this unit a factory-refurbished part?

• A: No. We supply only 100% Brand New, original Allen-Bradley hardware. Each unit comes with the original serial number and factory seals intact for full traceability and warranty support.