Allen-Bradley 2080-OB4 Digital Output Module | Replacement, Equivalent & Selection Guide
The Allen-Bradley 2080-OB4 is a 4-point 24V DC sourcing digital output module designed for the Micro820 Programmable Logic Controller (PLC) platform. It provides reliable discrete output control for industrial automation applications, offering compact form factor and seamless integration with Rockwell Automation’s Micro800 control system family.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 2080-OB4 |
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Series | Micro800 / Micro820 |
| Module Type | Digital Output (DO) |
| Number of Output Points | 4 |
| Output Voltage | 24V DC |
| Output Type | Sourcing (PNP) |
| Output Current (per point) | 0.5 A |
| Total Output Current | 2.0 A |
| Protection | Short-circuit & overload protected |
| Isolation | Optical isolation |
| Compatible Controller | Micro820 (2080-LC20 series) |
| Plug-in Module Slot | Micro800 plug-in slot |
| Operating Temperature | 0°C to 55°C (32°F to 131°F) |
| Weight | Approx. 700 g (packaged) |
| Certifications | CE, UL, cUL |
Compatible Replacement & Equivalent Models
When the 2080-OB4 is unavailable or you need a cost-effective alternative, the following models offer compatible or equivalent functionality:
- 2080-OB4 (OEM) — Original Allen-Bradley module; direct drop-in replacement
- 2080-OB8 — 8-point 24V DC sourcing output; upgrade option for higher I/O density
- 2080-OB16 — 16-point 24V DC sourcing output; for expanded output requirements
- 2080-OW4I — 4-point relay output; suitable when AC load switching is required
- 2080-OB4 (Aftermarket/Refurbished) — Tested and certified refurbished units available at Konmask.com
Note: Always verify firmware compatibility and module slot specifications before substituting models.
Why Choose the Original 2080-OB4
- ✅ Guaranteed compatibility with Micro820 PLC (2080-LC20 series) plug-in slots
- ✅ Rockwell Automation certified — meets all OEM electrical and mechanical tolerances
- ✅ Optical isolation protects the controller from field-side voltage transients
- ✅ Short-circuit protection on all 4 output channels for enhanced system reliability
- ✅ Compact plug-in form factor — no additional wiring base required
- ✅ Proven in harsh industrial environments — rated for 0–55°C continuous operation
Typical Applications
- Solenoid valve control in pneumatic and hydraulic systems
- Motor starter and contactor switching (via relay interface)
- Indicator lamp and signal tower control
- Conveyor and material handling automation
- Packaging machinery discrete output control
- HVAC and building automation systems
- Small-scale OEM machine control panels
System Compatibility
The 2080-OB4 is exclusively designed as a plug-in module for the Micro800 controller family. Confirmed compatible controllers include:
- Allen-Bradley Micro820 — 2080-LC20-20QBB, 2080-LC20-20QWB, 2080-LC20-20AWB
- Allen-Bradley Micro830 — 2080-LC30 series (verify slot count)
- Allen-Bradley Micro850 — 2080-LC50 series (verify slot count)
Not compatible with MicroLogix, CompactLogix, or ControlLogix platforms.
Selection Guide
Use the table below to select the correct Micro800 output module for your application:
| Model | Points | Output Type | Voltage | Best For |
|---|---|---|---|---|
| 2080-OB4 | 4 | Sourcing DC | 24V DC | Small DC load control, compact panels |
| 2080-OB8 | 8 | Sourcing DC | 24V DC | Medium I/O density DC applications |
| 2080-OB16 | 16 | Sourcing DC | 24V DC | High I/O density DC applications |
| 2080-OW4I | 4 | Relay (isolated) | AC/DC | AC loads, mixed voltage switching |
| 2080-OV4 | 4 | Sinking DC | 24V DC | NPN-compatible field devices |
Key selection criteria: number of output points needed → output voltage (AC vs DC) → sourcing (PNP) vs sinking (NPN) → load current per channel → isolation requirements.
Quality Assurance & Sourcing
All Allen-Bradley 2080-OB4 modules supplied by Konmask.com undergo the following quality process:
- 🔍 Visual inspection — label integrity, connector condition, housing check
- ⚡ Functional power-on test — all 4 output channels verified
- 📦 Anti-static packaging — ESD-safe bags and foam-lined boxes
- 📄 Documentation included — datasheet, test report, and certificate of conformance on request
- 🏭 Sourced from authorized distributors and verified secondary market channels
How to Order
- Confirm your Micro820 controller model number (e.g., 2080-LC20-20QBB)
- Verify available plug-in module slots on your controller
- Add Allen-Bradley 2080-OB4 to cart or contact us for bulk pricing
- Provide your shipping address — we ship worldwide from China
- Receive order confirmation and tracking within 1 business day
📧 Email: support@konmask.com
📞 Phone/WhatsApp: +0086 19859288691
🌐 Website: https://Konmask.com
Replacement & Compatibility FAQ
Q: Can the 2080-OB4 replace a 2080-OB8?
A: No — the 2080-OB4 has 4 output points vs 8. It can only replace the OB8 if your application uses 4 or fewer outputs and the physical slot dimensions match.
Q: Is the 2080-OB4 compatible with MicroLogix 1100?
A: No. The 2080-OB4 is a Micro800 plug-in module and is not compatible with MicroLogix, CompactLogix, or ControlLogix platforms.
Q: What is the difference between 2080-OB4 and 2080-OV4?
A: The OB4 is sourcing (PNP) output; the OV4 is sinking (NPN) output. Selection depends on your field device wiring convention.
Q: Can I use a refurbished 2080-OB4?
A: Yes, provided it has been fully tested. Konmask.com supplies tested refurbished units with functional verification reports.
Q: What is the lead time for the 2080-OB4?
A: In-stock units ship within 1–3 business days. Contact us for current stock availability.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
