Allen Bradley 1756-OA16 Digital Output Module

The AB 1756-OA16 is a 16-channel digital output module designed for ControlLogix systems, providing reliable triac-based switching for 120/240V AC loads. Ideal for controlling actuators, relays, contactors, and lighting systems, this module is widely used in high-voltage industrial automation environments.

With a nominal output range of 74–265V AC and support for up to 4 A total output current, the 1756-OA16 delivers robust AC control with built-in delay filtering to reduce electrical noise. Integration with Studio 5000 software allows for intuitive configuration and real-time diagnostics.

Technical Specifications

Model: 1756OA16
Series: ControlLogix
Type: Digital Output Module
Channels: 16 digital outputs
Output Type: Triac (sourcing, AC switching)
Output Voltage Range: 74…265 V AC
Nominal Output Voltage: 120/240 V AC
Connection Type: 20-pin plug-in terminal block
Mounting: ControlLogix chassis slot

Electrical Specifications

Max Output Current per Channel: 0.25 A
Total Module Output Current: 4 A max
Input Current at Signal High (1): 10 mA
Signal Delay: 9.3 ms ON / 11 ms OFF
Leakage Current (Triac): <2 mA per channel
Short-Circuit Protection: Not included (external protection required)
Backplane Current Draw:
• 5.1V DC @ 120 mA
• 24V DC @ 95 mA
Power Dissipation: Approx. 3.1 W
Heat Dissipation: Approx. 10.6 BTU/hr
Isolation Voltage: 250V continuous (field to backplane), basic insulation

Network & Interface Specifications

System Integration:

• Backplane Communication: ControlLogix standard
• Diagnostics: Channel-level status monitoring
• Configuration Software: Studio 5000 Logix Designer

Supported Protocols:
No direct protocol support – communicates via backplane to Logix controller

I/O Expansion: Fully compatible with other ControlLogix I/O modules

Mechanical Specifications

Width: 38.1 mm
Height: 300 mm
Depth: 111.25 mm
Mounting Orientation: Vertical slot installation
Enclosure Type: Open-type (requires panel mounting in control cabinet)
Terminal Block: Removable 20-pin plug-in connector
Weight: Approx. 0.4 kg

Environmental Specifications

Operating Temperature: 0…60 °C
Storage Temperature: –40…85 °C
Relative Humidity: 5% to 95% non-condensing
Shock Rating: 30 g operating, 50 g non-operating
Vibration Resistance: 2 g @ 10–500 Hz
Pollution Degree: 2
Certifications: Suitable for use in Class I Div 2 hazardous areas

Compliance & Certifications

Certifications: UL, c-UL, CE, RoHS
Explosion Safety (Gas/Dust): None
SIL/PL Rating: Not rated
EMC Compliance: EN 61000-6-2 / 6-4
Standards Met: EN 61131-2
Functional Safety: Not applicable

Key Features & Benefits

✅ 16 AC Output Channels – Switch high-voltage loads directly from a single module

✅ Triac-Based Output – Suitable for AC devices with reduced electrical noise and arc suppression

✅ Nominal 120/240V AC Control – Compatible with standard industrial voltages

✅ 20-Pin Terminal Block – Easy wiring and maintenance in panel applications

✅ Integrated with Studio 5000 – Simplified configuration and diagnostics

📦 Order the Allen Bradley 1756-OA16 from Drive Outlet Megastore

At Drive Outlet Megastore we offer unbeatable Allen Bradley 1756-OA16 prices. This high-voltage digital output module provides dependable AC control in a compact, ControlLogix-compatible format—available now with expert support and fast UK delivery.

Click here to request a quote or check availability

Drive Outlet Megastore – your trusted source for Allen Bradley ControlLogix I/O modules and high-voltage automation solutions.