Description
The Allen-Bradley 2080-PS120-240VAC is a dedicated external power supply unit from Rockwell Automation, designed specifically for the Micro800 series of programmable logic controllers. It converts standard 100-240V AC line voltage to a stable 24V DC output, providing the primary power source for the PLC processor and its connected I/O modules, forming the electrical backbone of compact automation systems.
Application Scenarios
In a small bottling line’s control cabinet, a Micro850 controller manages conveyor start/stop, fill valve timing, and cap placement. The 2080-PS120-240VAC is mounted on the DIN rail, taking in 120V AC plant power and delivering clean 24V DC power to the PLC via a short connection cable. This setup resolves the common pain point of space constraints and heat buildup, as the external power supply can be placed away from sensitive electronics, improving reliability. The wide 100-240V AC input range allows the same machine to be deployed globally without hardware changes, simplifying inventory for OEMs.
Parameter
| Main Parameters | Value/Description |
|---|---|
| Product Model | 2080-PS120-240VAC |
| Manufacturer | Rockwell Automation (Allen-Bradley) |
| Product Category | External AC/DC Power Supply |
| Input Voltage | 100–240V AC (47–63 Hz) |
| Output Rating | 24V DC, 1.6A (38.4W) |
| Output Ripple | < 150 mV peak-to-peak |
| Efficiency | Typical 85% |
| Isolation | 2300V AC (Input to Output) |
| Mounting | 35 mm DIN Rail |
| Operating Temperature | -20°C to +60°C |
| Dimensions (HxWxD) | 90 mm x 45 mm x 80 mm |
| Protection | Overload, Short Circuit, Overvoltage |
| Certifications | cULus Listed, CE Marked, RCM |
Technical Principles and Innovative Values
The 2080-PS120-240VAC is a switch-mode power supply (SMPS) engineered for industrial environments. Its core value lies in providing a rugged, reliable, and simple power interface for Micro800 controllers.
- Innovation Point 1: Global Voltage Compatibility. The module’s wide-range auto-sensing input (100-240V AC) eliminates the need for manual voltage selection jumpers or taps. This “set-and-forget” design allows machine builders to use a single part number worldwide, dramatically simplifying logistics, spare parts stocking, and field service for globally deployed equipment.
- Innovation Point 2: Enhanced Thermal and Electrical Design. By being an external module, it isolates heat-generating components (like transformers and switching transistors) from the PLC’s CPU and memory. This separation enhances the long-term reliability of the controller. Furthermore, its high 2300V AC isolation and low output ripple (<150mV) protect sensitive digital logic from mains-borne transients and electrical noise, a common cause of unexplained PLC faults in electrically noisy plants.
- Innovation Point 3: Optimized for the Micro800 Ecosystem. Unlike generic 24V power supplies, the 2080-PS120-240VAC is mechanically and electrically designed to seamlessly connect with Micro800 controllers using the 2080-CN1 (or similar) power cable. Its 38.4W (1.6A) output is precisely sized to power a typical Micro830/850 controller with several I/O modules, ensuring users don’t under-specify (causing brownouts) or over-specify (wasting cost and space) their power system.
