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Description
Technical Specifications
| Product Model | 1606-XL480EPT |
|---|---|
| Manufacturer | Rockwell Automation / Allen-Bradley |
| Product Type | Single-Phase Switched Mode Power Supply, 480 W |
| Nominal Output Voltage | 24 V DC (adjustable 24–28 V DC) |
| Rated Output Current | 20 A @ 24 V DC (480 W), 17.1 A @ 28 V DC |
| Peak Output Power | 576 W (≤ 45 °C ambient) |
| Input Voltage Range | 85–264 V AC (47–63 Hz), 120–300 V DC |
| Input Current | < 5 A @ 230 V AC, < 10 A @ 115 V AC (full load) |
| Power Factor | > 0.95 @ 230 V AC (Active PFC per EN 61000-3-2) |
| Efficiency | Typ. 90.5% @ 230 V AC, full load; up to 94% |
| Output Ripple & Noise | < 50 mV p-p (20 Hz–20 MHz bandwidth) |
| Hold-Up Time | Typ. 30 ms @ 230 V AC, 20 A load |
| Operating Temperature | -25 °C to +70 °C (full power to 60 °C; derating 12 W/°C above 60 °C) |
| Dimensions (W × H × D) | 65 × 124 × 127 mm (2.56 × 4.88 × 5.00 in) |
| Mounting | 35 mm DIN Rail (EN 60715) |
| Protection Rating | IP20 (finger-safe screw terminals) |
| Weight | Approx. 1.0 kg (2.2 lb) |
| Safety & EMC Approvals | cULus Listed (UL 508, UL 60950-1), CE, C-Tick, SEMI F47, ABS/GL Marine, Class I Div. 2 |
| MTBF | > 500,000 h (Telcordia SR-332 / Siemens SN 29500, 40 °C) |
Main Features and Advantages
Wide universal input with active PFC: The Allen-Bradley 1606-XL480EPT accepts 85–264 V AC single-phase and 120–300 V DC inputs with automatic range detection, removing the need for voltage-select jumpers or different part numbers for domestic versus export machinery. Integrated active Power Factor Correction maintains PF > 0.95, reducing reactive power draw and ensuring compliance with harmonic emission standards (EN 61000-3-2Class A).Exceptional efficiency and thermal management: At typical full-load conditions the Allen-Bradley 1606-XL480EPT delivers up to 94% conversion efficiency, resulting in less than 32 W dissipated heat. The fanless convection-cooled design prolongs electrolytic capacitor life (rated 105 °C, long-life grade) and eliminates acoustic noise, making the unit suitable for quiet control rooms and sealed enclosures with proper ventilation spacing.Adjustable output and line-drop compensation: The 24 V DC output of the Allen-Bradley 1606-XL480EPT is adjustable to 28 V DC via a front-panel potentiometer behind a protective cover. This allows the user to offset voltage drop on long feeder cables or to match the charging setpoint of downstream DC-UPS or buffer modules from the same 1606 accessory family.Robust protection and diagnostic feedback: The supply incorporates constant-current overload behavior with automatic recovery (hiccup-plus mode), short-circuit protection, overvoltage protection (≈33 V trip to hiccup mode), and thermal shutdown with auto-restart on cooldown. A green DC OK LED signals proper regulation; the unit also provides a dry-contact DC OK relay output and remote inhibit terminals (Remote Shutdown 1 & 2) for integration into safety or sequenced power-up schemes.Parallel operation with current sharing: Up to five Allen-Bradley 1606-XL480EPT units can be paralleled using the selectable V/I characteristic (accessible via an external bridge—no enclosure opening required) to achieve true current sharing for higher power demand or N+1 redundancy when used with a 1606-XLSRED redundancy module.
Application Field
The Allen-Bradley 1606-XL480EPT is specified as the central 24 V DC power source in control panels across discrete manufacturing, process skids, packaging lines, material handling systems, and building automation. Within an Allen-Bradley architecture, the Allen-Bradley 1606-XL480EPT powers ControlLogix (1756) or CompactLogix (1769) processors, local and distributed I/O (POINT I/O 1734, FLEX I/O 1794), PanelView Plus HMI units, and Kinetix servo drive 24 V auxiliary supplies. Its 20 A continuous rating typically supports a medium-density I/O cluster plus several smart devices, eliminating the need for multiple lower-wattage supplies in the same enclosure.Machine builders and OEMs utilize the Allen-Bradley 1606-XL480EPT to consolidate 24 V DC distribution for proximity switches, photoelectric sensors, inductive proximity detectors, pneumatic valve manifolds with 24 V pilot solenoids, and signal isolators—all from a single DIN-rail-mounted unit. The SEMI F47 compliance makes it suitable for semiconductor and flat-panel manufacturing facilities where voltage sag immunity is mandated.In applications where power continuity is critical, the Allen-Bradley 1606-XL480EPT is paired with a 1606-XLB buffer module to bridge short mains interruptions (tens to hundreds of milliseconds) or with a 1606-XLCNET DC-UPS and battery pack for extended ride-through and graceful controlled shutdown. For maximum availability, two Allen-Bradley 1606-XL480EPT units can feed a 1606-XLSRED40 redundancy module to create a 1+1 fault-tolerant power architecture. The unit’s ATEX / Class I Div. 2 listing also qualifies it for use in hazardous-area classified process installations when mounted in a suitably certified enclosure.
