You are here:
Allen-Bradley 1746-OB16 SLC 500 Digital Output Module
The Allen-Bradley 1746-OB16 is an SLC 500 Digital Output Module with 16 DC outputs, designed to control field devices such as relays, solenoids, and indicators. It enables reliable signal transmission from the PLC to external equipment, supporting efficient and accurate industrial automation operations.
Looking for a Quote? Contact Us Now
Categories: PLC I/O Module
Tags: Digital Output Module, PLC module
Description
The Allen-Bradley 1746-OB16 is a digital output module used with the SLC 500 PLC system, providing 16 discrete DC output channels. It allows the controller to send signals to field devices such as relays, contactors, solenoids, and indicator lights. Installed within an SLC 500 chassis, the module converts PLC logic commands into electrical output signals, enabling direct control of industrial equipment and processes. Its dependable switching performance ensures accurate execution of control operations in real time.
Built for industrial environments, the 1746-OB16 offers reliable and consistent operation under demanding conditions. The module features LED indicators for output status monitoring and supports easy wiring through a removable terminal block. Its compact, modular design allows seamless integration into existing SLC 500 systems, helping improve automation efficiency, reduce downtime, and maintain precise control over machinery and processes across various industrial applications.
QTech Safety is a leading supplier of Allen-Bradley 1746-OB16 SLC 500 Digital Output Module in Ireland, offering competitive prices and fast worldwide shipping across United Kingdom (UK), Germany, France, Italy, Spain, United States USA, Canada, Mexico, and Western Australia (Perth). Buy Allen-Bradley PLC I/O module from one of Ireland’s most trusted industrial safety equipment suppliers.
Features of Allen-Bradley 1746-OB16 SLC 500 Digital Output Module
16 digital DC output channels for controlling field devices
Sourcing (positive) output type for DC loads
Operates at 24V DC (10–30V range)
Fast switching speed (approx. 0.1–1 ms response time)
LED indicators for each output status
Optical isolation for protection and noise immunity
High current capacity (up to ~1.5 A per output)
Backplane powered (no external supply required)
Compatible with all SLC 500 chassis
Compact modular design for easy panel installation
Designed for industrial environments (shock, vibration, temperature resistance)
Technical Specifications of Allen-Bradley 1746-OB16
Module Type : | Digital DC Output (sourcing/current sourcing) |
Number of Outputs : | 16 |
Points per Common : | 16 (one group, single common) |
Voltage Category : | 24V DC signal output (sourcing) |
Operating Voltage Range : | 10…50V DC (source) |
Backplane Current Consumption : | 0.280 A @ 5V DC, 0.0 A @ 24V DC |
Signal Delay (max, resistive load) : | ON = 0.1 ms, OFF = 1.0 ms |
Off-State Leakage (max) : | 1 mA |
Load Current (min) : | 1 mA |
Continuous Current per Point (max) : | 0.50 A @ 30°C (86°F), 0.25 A @ 60°C (140°F) |
Continuous Current per Module (max) : | 8 A @ 30°C, 4 A @ 60°C |
On-State Voltage Drop (max) : | 1.2V @ 0.5 A |
Surge Current per Point (max) : | 3 A for 10 ms (repeatable every 1 s @ 30°C, every 2 s @ 60°C) |
Isolation : | 500V DC (comm circuits), 1500V AC (backplane) |
Terminal Block : | Removable |
Compatibility : | SLC 500 chassis and processors |
Allen-Bradley 1746-OB16
Standard Part Number
- 1746-OB16
Alternate Part Number
- 1746-OB16E
Applications
Controlling relays and contactors in industrial panels
Operating solenoid valves in pneumatic and hydraulic systems
Driving indicator lights and alarm signals
Controlling motors (via contactors or starters)
Used in conveyor systems for start/stop operations
Activating packaging machines and actuators
Controlling heaters and small loads through switching devices
Used in assembly lines for automated operations
Operating fans, pumps, and compressors (through relays)
General PLC-based output control of field devices
Why Choose QTech Safety?
At QTech Safety, we’re more than just a safety supplier we’re your trusted partner in workplace protection and compliance.
Here’s why companies across UK and Ireland (EU) choose us for safety products and training:
- Comprehensive Range of Safety Equipment:
From gas detection and PPE to industrial safety tools, we offer one of the widest selections of trusted brands all at competitive Irish market prices. - Test & Measurement Instruments You Can Trust:
We supply a wide range of test and measurement instruments from the most leading and trusted brands, including industrial sensors, multimeters, oscilloscopes, accelerometers, proximity sensors, and other advanced measurement tools to support accurate diagnostics, condition monitoring, calibration, and maintenance applications. - Expert Health & Safety Training:
We provide professional health and safety training programmes designed to help your workforce stay compliant and confident on the job. - Fast, Reliable Delivery Worldwide:
Whether you’re in Texas United States or Perth Western Australia, our fast delivery service ensures you get your safety equipment quickly and efficiently. - Trusted by European Businesses:
We’re proud to support industries across Europe (UK) with certified safety solutions, expert advice, and responsive customer service.
We Ship Worldwide
At QTech Safety, we supply industrial safety products across Ireland and offer fast, reliable worldwide delivery. Through strong global logistics partnerships, we ensure efficient shipping and professional support for customers in Europe, North America and Australia.
🡆 Europe (United Kingdom, Ireland, Germany, France, Italy, Spain, and the rest of European Union)
🡆 Australia (Western Australia WA, Queensland QLD, and New South Wales NSW)
🡆 North America (United States, Canada, Mexico)
