Product Overview

The Allen-Bradley 2080-PS120-240VAC​ is an external AC-to-DC power supply within Rockwell Automation’s 2080 Micro800 family, designed to convert a panel’s 120/240VAC mains feed into the 24V DC required by Micro800 controllers (Micro810, Micro820, Micro830, Micro850, Micro870) and their attached expansion I/O modules. Unlike the 1769-PA2 or 1768-PA2 which slide into a rack backplane, the 2080-PS120-240VAC​ is a standalone DIN-mount unit that sits on the same 35 mm rail as the Micro800 CPU but connects via a short dedicated cable (2080-CN1, ordered separately) to the CPU’s left-side DC-power port—Micro830 and Micro850 CPUs carry no integral power converter, so the 2080-PS120-240VAC​ (or a user-supplied 24V DC PSU) is mandatory for AC-mains-only panels. The “120-240VAC” suffix denotes the nominal input bands (100–120VAC @ 1A / 200–240VAC @ 0.5A), while the internal regulation delivers a stabilized 24V DC @ 1.6A (38.4W net output, 44–45W input draw depending on line), with overload, overvoltage, and short-circuit protection on the 24V secondary.Physically, the 2080-PS120-240VAC​ is deliberately sized to the Micro800 family footprint—45 mm wide (same as a Micro850 CPU or a 2080 expansion I/O module), 90 mm high, 80 mm deep, 0.34 kg—so a DIN rail carrying a 2080-PS120-240VAC​ + Micro850 CPU + 2–3 2080 expansion modules presents a uniform, gap-free frontage that keeps small-machine panels tidy. Input acceptance spans 85–264VAC (47–63 Hz) with no jumper or switch—one SKU covers North American 120V panels and European/Asian 230V panels, a global-OEM advantage. The 2080-PS120-240VAC​ carries primary-to-secondary reinforced insulation (250V continuous working, 2300VAC/60s type-test primary-secondary, 1480VAC/60s primary-earth), IP20 open-style enclosure, -20°C to +65°C operating (IEC extended -40°C storage to +85°C), 30g shock / 2 m/s² to 500 Hz vibration per IEC 60068, and screws down with 0.5–0.6 N·m torque onto 22–14 AWG solid or 22–16 AWG stranded copper. For panels where the only available supply is AC mains and the machine builder wants a Rockwell-matched PSU instead of a third-party switch supply (Mean Well, etc.), the 2080-PS120-240VAC​ is the catalog-correct choice—compact, single-SKU global, and cUL/CE/RCM listed.

Technical Specifications

Main Features and Advantages

Global 85–264VAC input with zero jumpering:​ The 2080-PS120-240VAC​ accepts the full universal single-phase range without a voltage-select switch or jumper strap—a 120V site and a 230V site get the same PSU, same part number, same wiring. For OEMs shipping Micro850-based machines to both NA and EU/APAC, this collapses spare SKU count and prevents the classic “wrong-jumper” field callout where a 120V-labeled PSU gets landed on 230V and releases its magic smoke. The 47–63 Hz input tolerance also covers regions with soft frequency (e.g., 50 Hz nominal with ±5% drift under generator supply), making the 2080-PS120-240VAC​ generator-tolerant for ag/rural or temporary-event machinery.1.6A@24V output sized for Micro830/Micro850 + modest expansion:​ The 38.4W delivered by the 2080-PS120-240VAC​ is deliberately matched to the Micro800 CPU + light expansion envelope. A Micro850 2080-LC50-24QWB (24 I/O built-in) draws ~15W; a 2080-IQ16 (16 DI) draws ~2W; a 2080-OW8I (8 relay) draws ~3W; total ~20W, leaving ~18W headroom for sensor excitation taps on the 24V rail. Push harder—say a Micro850 + 2080-IF4 (4 AI, ~3W) + 2080-OF2 (2 AO, ~2.5W) + 2080-OW16 (16 relay, ~4W) + a few PNP sensors—and you’ll approach the 38.4W ceiling. The 2080-PS120-240VAC​ includes output overload and short protection, so an over-budgeted build trips the PSU rather than cooking it, but the design takeaway is: tally the CPU + all 2080 expansion modules’ 24V draw before committing to this PSU—if the expansion count grows beyond 3–4 modules, step up to a higher-capacity third-party 24V DC supply and feed the Micro850 directly, or distribute sensor 24V to a separate rail supply. Rockwell markets the 2080-PS120-240VAC​ honestly as “controller + a few expansion I/O” class, not “full skid PSU.”