Excellent PLC
Product Introduction
The Allen-Bradley 1746-OB32 is a high-density DC digital output module designed for the SLC 500 programmable controller platform. It provides efficient and reliable switching of DC loads, making it well-suited for applications requiring a large number of output points within a compact control system.
This module features 32 transistor-based sourcing output channels, enabling it to control multiple field devices simultaneously. It is designed to deliver 5–50V DC output signals, making it compatible with a wide range of industrial DC loads such as relays, solenoids, indicator lights, and small actuators.
With its open-style configuration, the 1746-OB32 allows flexible wiring and straightforward integration into control systems. Its solid-state transistor outputs ensure fast switching, minimal wear, and long-term operational stability. The module is commonly used in automation systems where high output density and reliable DC control are required.
Product Specifications
| Parameter | Description |
|---|---|
| Manufacturer | Allen-Bradley |
| Series | SLC 500 |
| Module Type | DC Digital Output Module |
| Catalog Number | 1746-OB32 |
| Module Classification | High-Density Output Module |
| Number of Channels | 32 Outputs |
| Output Type | Transistor Sourcing (PNP) |
| Output Voltage Range | 5–50V DC |
| Output Current (per channel) | Approx. 0.5 A (typical) |
| Total Module Current | Limited by thermal capacity |
| Output Configuration | Open-style transistor outputs |
| Switching Speed | High-speed solid-state switching |
| Isolation | Group isolation (backplane to field) |
| Backplane Current Consumption | Approx. 0.270 A |
| Operating Temperature | 0 to 60°C |
| Storage Temperature | -40 to 85°C |
| Installation | SLC 500 Chassis |
| Wiring Category | Category 1 |
| Dimensions | 144.5 × 34.6 × 130.18 mm |
| Weight | 0.23 kg |
Applications
● High-Density Control Systems
Ideal for applications requiring a large number of output signals within limited panel space.
● Machine Automation
Used to control actuators, relays, and indicator devices in automated machinery.
● Packaging and Assembly Lines
Provides fast and reliable switching for high-speed production equipment.
● Material Handling Systems
Controls conveyors, sorting devices, and positioning mechanisms using DC outputs.
● Distributed Control Panels
Suitable for systems where multiple output devices need to be managed efficiently from a single module.
Advantages
● High Output Density
Offers 32 output channels in a single module, reducing the need for additional hardware.
● Fast Switching Performance
Transistor outputs enable rapid response, making it suitable for time-sensitive applications.
● Wide DC Voltage Range
Supports 5–50V DC, allowing compatibility with various industrial devices.
● Solid-State Reliability
No mechanical contacts, resulting in reduced wear and longer service life.
● Flexible Wiring Design
Open-style configuration simplifies installation and field wiring.
● Efficient Space Utilization
Compact design maximizes the use of control cabinet space.
