The Emerson / Artesyn / Astec AA19920 is an AC-to-DC power supply unit engineered for conversion of mains power to regulated DC output in industrial, telecommunications, and critical control applications. It delivers up to 82.5 W at continuous 6 A output current with integrated protection against overvoltage, overcurrent, and short-circuit faults.
## Technical Specifications
**Input Power**
• AC Input: 85–264 VAC nominal (100–240 V), 50/60 Hz, or 120–300 VDC
• Input Current: 1.77 A at 85 VAC
• AC Efficiency: >93% typical
• Power Factor: 0.53–0.63 across load levels at 121.6 VAC; active PFC models reach 0.99 typical
• AC Losses: 67 W typ.
**DC Output**
• Output Voltage: 13.75–14.18 V under load (0–6 A)
• Output Power: Up to 82.5 W at 6 A continuous
• Output Current Rating: 6 A continuous
**Interfaces**
• Field wiring terminals: AC Line (L1, L2), Ground (GR), DC Output (+, −)
• Discrete input (DI) for power supply status monitoring
• AC input protection: Internally fused (non-replaceable); fuse rated for internal fault conditions only
## Key Features
• Compact form factor: 119 mm H × 67 mm W × 157 mm L (4.7 in H × 2.6 in W × 6.2 in L)
• Mounting holes: 148 mm (5.81 in) center-to-center
• Environmental sealing: IP20 rated; conformal coating per ISA-S71.04-1985 class G3
• Operating temperature: 0–40 °C; storage −40 to +85 °C
• Humidity tolerance: 5–95% RH, non-condensing
• Mechanical robustness: 10 g RMS shock (three axes, 11 ms); 2.5 g RMS vibration 10–2000 Hz per IEC 60068-2-6
## Typical Applications
Power conditioning for ROC and FloBoss devices; telecommunications equipment; industrial process control systems requiring stable, protected DC conversion from mains voltage.
## Compatibility & Integration
Also referenced as Motorola AA19920 Power Supply. Compatible with Motorola WPLN4171A Multi-Unit Battery Charger and associated Emerson control platforms.
