PRODUCT DETAILS
Allen-Bradley 2080-OB4 Micro800 Source Output Module (New Sealed, Series A)
Professional Product Description
The Allen-Bradley 2080-OB4 is a 4-point source digital output module engineered for the Micro800 PLC platform—offering compact, rugged and reliable digital field control in industrial automation systems. Precision-designed by Rockwell Automation, this plug-in I/O module delivers robust switching performance for low-voltage DC loads with integrated status indication and wide operating tolerance.
Key Features & Benefits
🔹 4-Point Digital Source Outputs
Provides four independent sourcing outputs rated at 12/24 VDC, ideal for controlling DC actuators, indicators, solenoids, and other low-voltage devices.
🔹 Wide Supply Voltage Range
Compatible with 10.8 – 30 V DC power systems, supporting flexible field wiring and power arrangements.
🔹 Steady-State Output Capability
Each channel delivers up to 0.5 A continuous load current, with a short-term surge rating of 2 A for 2 s — allowing reliable energization of moderately inductive loads without external relays.
🔹 Compact Plug-In Design
Mounts directly onto Micro800 controllers without increasing system footprint, enabling scalable I/O expansion in tight control cabinet environments.
🔹 LED Output Status Indicators
Four yellow LED indicators provide clear visual feedback of output states, simplifying installation validation and commissioning.
🔹 Industrial-Grade Environmental Tolerance
Rated for operation from -20 °C to +65 °C (-4 °F to +149 °F) and suitable for standard industrial control cabinets.
🔹 Reliable Screw Terminal Connections
Standard screw connections with support for 24–12 AWG (0.2–2.5 mm²) copper wiring ensure secure installation in production environments.
Technical Specifications
| Specification | Value |
|---|---|
| Product Family | Micro800 I/O Plug-in Module |
| Part Number | 2080-OB4 |
| Output Type | Sourcing (Source) |
| Outputs | 4 Digital Points |
| Voltage Range | 10.8 – 30 VDC |
| Output Current | 0.5 A per Point Steady-State; 2 A Peak Surge (2 s) |
| Status LEDs | Yes — 1 per Channel |
| Operating Temp | -20 to +65 °C |
| Termination | Screw Terminal |
| Mounting | Plug-In to Micro800 Base |
| Certifications | CE, UL/cUL, C-Tick, KC (via distributors) |
Typical Applications
✔ Industrial automation panels and machine control systems
✔ Conveyor PLC outputs for indicators & actuators
✔ Packaging, material handling, robotics interfaces
✔ OEM machinery requiring compact programmable control
📊 Micro800 Digital Output Module Comparison
OB4 vs OB2R vs OB8
Compatible with Allen-Bradley Micro800 PLC systems
Comparison Table
| Feature / Model | 2080-OB4 | 2080-OB2R | OB8 (8-Point Output Module) |
|---|---|---|---|
| Product Family | Micro800 Plug-In I/O | Micro800 Plug-In I/O | Micro800 Output Expansion |
| Output Points | 4 Outputs | 2 Outputs | 8 Outputs |
| Output Type | Sourcing (Source) | Relay Output | Sourcing / Sinking (model dependent) |
| Rated Voltage | 12 / 24 VDC | Up to 250 VAC / 30 VDC | 12 / 24 VDC |
| Operating Voltage Range | 10.8 – 30 VDC | Depends on relay load | 10.8 – 30 VDC |
| Output Current | 0.5 A per point (DC) | 2 A per relay | 0.5 A per point (DC) |
| Surge Capacity | 2 A (short duration) | Relay-rated | 2 A (short duration) |
| Isolation | Electronic | Mechanical (relay) | Electronic |
| Output Status LEDs | Yes (1 per channel) | Yes | Yes (1 per channel) |
| Terminal Type | Screw terminals | Screw terminals | Screw terminals |
| Wiring Size | 24–12 AWG | 24–12 AWG | 24–12 AWG |
| Mounting | Plug-in to Micro800 | Plug-in to Micro800 | Plug-in / Expansion |
| Typical Load Type | DC sensors, lamps, solenoids | AC/DC mixed loads | Multiple DC field devices |
| Best Use Case | Standard DC output control | Switching higher voltage loads | High-density DC output systems |
Module Selection Guide
✅ 2080-OB4 – Standard DC Output Module
-
Best balance of output capacity, diagnostics, and compact size
-
Ideal for DC actuators, indicators, and solenoids
-
Most commonly used Micro800 output module
Recommended for:
Small to mid-size automation systems with standard DC loads
🔹 2080-OB2R – Relay Output Module
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Relay-based outputs for both AC and DC loads
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Suitable for applications requiring electrical isolation
-
Lower output point count
Recommended for:
Mixed-voltage applications or when relay isolation is required
🟢 OB8 – 8-Point Digital Output Module
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Higher I/O density for output-heavy systems
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Reduces module count in control cabinets
-
Ideal for machines with multiple actuators or indicators
Recommended for:
Systems requiring multiple DC outputs in limited space
Quick Recommendation Summary
| Application Requirement | Recommended Model |
|---|---|
| Standard DC output control | 2080-OB4 |
| AC / DC mixed load switching | 2080-OB2R |
| High output count, compact system | OB8 |
Why Choose the 2080-OB4?
The 2080-OB4 digital output module combines Rockwell-grade reliability with industry-standard sourcing outputs and flexible voltage tolerance—perfect for engineers seeking compact PLC expansion without sacrificing performance. Its plug-in design and visual output status improves installation efficiency and minimizes control panel complexity

