Allen-Bradley 1756-OA16I AC Output Module

Series#: AllenBradley

Product Details

1756-OA16I – Allen-Bradley ControlLogix 16-Point AC Output Module, designed for high-reliability industrial automation.
16 isolated AC output channels, each rated for 120/240V AC operation, providing robust switching for actuators, relays, and solenoids.
Built-in isolated output banks (4 groups of 4 points) to prevent cross-talk and improve system noise immunity in harsh environments.
LED status indicators per channel for quick diagnostics and reduced downtime in critical processes.
Supports both AC and DC control logic (24V DC backplane power) with flexible wiring via removable terminal blocks.
Optimized for ControlLogix chassis with easy hot-swap capability and seamless integration into Studio 5000 environments.
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Specification

The Allen-Bradley 1756-OA16I is a high-density AC output module within the ControlLogix family, engineered for demanding industrial applications requiring isolated switching of AC loads. This module features 16 individually isolated output channels, each capable of handling 120/240V AC at up to 2A per point (with total current limited by thermal constraints), making it ideal for controlling motor contactors, solenoid valves, and panel indicators. The 1756-OA16I employs opto-isolation technology to separate the backplane logic from field-side power, ensuring robust performance even in electrically noisy environments. Its design includes field-replaceable fuses per group and diagnostic LEDs for real-time fault detection. For seamless integration, the module supports both on-state and off-state leakage current specifications compliant with IEC 61131-2 standards. Below is the detailed technical specification table:

Parameter	Specification
Product Type	AC Output Module
Series	ControlLogix 1756
Number of Outputs	16 (isolated, 4 groups of 4)
Output Voltage Range	85-265V AC (47-63 Hz)
Output Current per Point	2A continuous (max), derated at high ambient temperature
Total Module Current	8A max (sum of all outputs)
Backplane Power Consumption	5V DC Standard Models 250 mA typical, 24V DC Standard Models 50 mA (for field logic)
Isolation	2500V RMS between field and backplane; 1500V RMS between groups
Output Type	Triac (AC switching), zero-crossing turn-on for reduced EMI
Leakage Current (Off-State)	Less than 1.5 mA at 120V AC, less than 3 mA at 240V AC
Surge Current	30A for 1 cycle (non-repetitive)
Fuse Protection	Replaceable 5x20 mm fuses per group (1A or 2A, user-configurable)
Diagnostics	LED per channel (green for on, red for fault), module status LED
Wiring	Removable terminal block (20-14 AWG wire)
Operating Temperature	0°C to 60°C (32°F to 140°F)
Storage Temperature	-40°C to 85°C (-40°F to 185°F)
Humidity	5% to 95% non-condensing
Shock and Vibration	IEC 60068-2-27 (shock), IEC 60068-2-6 (vibration)
Certifications	CE, UL 508, CSA C22.2 No. 142, ATEX Zone 2 (optional)
Weight	Approximately 0.35 kg (0.77 lbs)
Dimensions (H x W x D)	144 mm x 35 mm x 105 mm (5.67 in x 1.38 in x 4.13 in)
Mounting	ControlLogix chassis (any slot, hot-swappable)
Compatible Software	Studio 5000 Logix Designer v20 or later