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- Allen Bradley
- 1746-OBP8
- PLC Module/Rack
- USA
- 145 × 35 × 140 mm
- 0.45kg
- Xiamen, China
- New & In Stock
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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Allen Bradley 1746-OBP8 — Detailed Technical Overview
1. Product Introduction
The Allen Bradley 1746-OBP8 is a high-current digital DC output module designed for the SLC 500 PLC platform. It is intended for applications where standard output modules are not sufficient to drive higher power loads directly.
This module provides eight sourcing DC output channels, divided into two groups, and is capable of delivering significantly higher current per channel compared to typical digital output modules. It is commonly used to control heavy-duty field devices such as large solenoids, industrial relays, and actuators that require stronger drive capability.
The module installs into the SLC 500 chassis and communicates through the system backplane. Its solid-state transistor output design ensures fast switching, high durability, and stable performance under continuous industrial operation.
2. Product Parameters
Technical Specifications
| Parameter | Value |
|---|---|
| Model | 1746-OBP8 |
| Series | SLC 500 |
| Module Type | High-Current Digital DC Output Module |
| Number of Outputs | 8 (grouped) |
| Output Type | Sourcing (transistor) |
| Nominal Output Voltage | 24 V DC |
| Output Voltage Range | 20.4 – 26.4 V DC |
| Output Current per Channel | Up to 2.0 A |
| Maximum Current per Module | Approx. 8 – 16 A |
| Surge Current | Up to 4 A (short duration) |
| Turn-On Delay | Approx. 0.1 ms |
| Turn-Off Delay | Approx. 1 ms |
| On-State Voltage Drop | ≤ 1.2 V |
| Off-State Leakage Current | ≤ 1 mA |
| Minimum Load Current | ≥ 1 mA |
| Backplane Current | Approx. 0.13 A @ 5V DC |
| Power Dissipation | Moderate (depends on load) |
| Isolation | Electrical isolation (field to logic) |
| Status Indicators | 8 LEDs (per channel) |
| Operating Temperature | 0 to 60°C |
| Installation Type | Rack-mounted |
| Dimensions (mm) | 145 × 35 × 140 |
| Weight (kg) | 0.2 – 0.45 kg |
3. Product Applications
The 1746-OBP8 is used in industrial automation systems where higher current output capability is required.
Typical applications include:
- Driving high-power solenoid valves
- Controlling heavy-duty relays and contactors
- Operating industrial actuators
- Packaging and assembly systems
- Conveyor and material handling equipment
- Applications requiring direct control of higher current DC loads
Its design allows it to replace external relays or amplifiers in many systems, simplifying wiring and improving reliability.
4. Product Advantages
High Output Current Capability
Each channel supports significantly higher current, making it suitable for demanding loads.
Reduced External Components
Eliminates the need for additional relays or driver circuits in many applications.
Fast Switching Speed
Transistor outputs provide quick response for dynamic control systems.
Reliable Solid-State Design
No mechanical contacts, resulting in longer operational life.
Compact Configuration
Eight high-current outputs in one module help save panel space.
Stable Industrial Performance
Designed to operate reliably under continuous industrial conditions.
Easy Integration
Direct compatibility with SLC 500 systems simplifies installation and commissioning.
5. Brand Information
Allen Bradley is widely known in industrial automation for its PLC systems, I/O modules, and control equipment.
Its products are used globally in manufacturing and process industries due to their durability and consistent performance.
6. Product Series
- Series Name: SLC 500
- Category: Digital Output Module (High-Current DC)
The SLC 500 series is a modular PLC platform designed for flexible expansion and reliable control. It supports a wide variety of digital, analog, and specialty modules for industrial automation systems.
7. Recommended Models (Same Series / Related)
Related Models Table
| Model | Function | Outputs | Signal Type | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1746-OB8 | Digital Output | 8 | 24V DC | 145 × 35 × 130 | 0.3 kg |
| 1746-OB16 | Digital Output | 16 | 24V DC | 145 × 35 × 130 | 0.3 kg |
| 1746-OB32 | Digital Output | 32 | 24V DC | 248 × 173 × 58 | 0.35 kg |
| 1746-OV8 | Digital Output | 8 | 24V DC (sinking) | 145 × 35 × 130 | 0.3 kg |
| 1746-OW8 | Digital Output | 8 | Relay | 145 × 35 × 130 | 0.35 kg |
8. Recommended Popular Models (Same Brand)
Popular Models Table
| Model | Series | Function | Type | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1756-OB32 | ControlLogix | Digital Output | 32-channel DC | 140 × 112 × 145 | 0.6 kg |
| 1756-OB16E | ControlLogix | Digital Output | 16-channel DC | 140 × 112 × 145 | 0.6 kg |
| 1769-OB32 | CompactLogix | Digital Output | 32-channel DC | 118 × 87 × 140 | 0.6 kg |
| 1769-OB16 | CompactLogix | Digital Output | 16-channel DC | 118 × 87 × 140 | 0.5 kg |
| 1606-XLS240E | Power Supply | DIN Rail PSU | 24V DC | 123 × 50 × 125 | 0.8 kg |