50-amp 28-volt GPU with 3-pin Oval Plug (M2850)

The M2850 Mini-GPU is a specialized switching-mode power supply designed to provide pilots and aviation maintenance professionals with a portable, affordable source of stable, high-current, noise-free DC power that replicates the in-flight electrical environment. Its rated output is 28-volts up to 50-amps (approximately 1500 watts). The GPU’s intended purpose is to energize an aircraft’s main electrical bus without using the ship’s battery or engine. It will safely provide continuous power for the most delicate electronics and airframe systems up to its full rated output.

• power avionics for flight planning, familiarization, and training
• update flight deck database and software
• troubleshooting and maintenance

GPU Features

• Color-coded, keyed SB-50 type output connection to prevent accidental voltage mismatch. RED designates 24/28 volt compatibility.
• Digital output meter shows voltage and amperage (load)
• Front panel status indicator LED
• Programmable auto-shutdown timer and dual USB power ports for mobile device charging
• QuietFilteredTM output for interference-free COM radio operation
• Auto protection/recovery from short circuit, reverse polarity, over voltage/load/temperature

Specifications

• Input Voltage: Universal 90-264 volts AC, 47-63 Hz
• Input Current: 17A @ 115 volts AC
• Input Protection: 20A circuit breaker, cycle ON/OFF to reset
• Output: 28.50 +/- 0.25 VDC, 50 amps max cont.
• Output Cable: 4 AWG, SB-50 to 3-pin oval AN2551 (NATO)
• Chassis Dimensions: 6.4” H x 5.32” W x 14.63” L
• Carry Weight w/cables: 17 lbs
• Carton Dimensions: 10” H x 10” W x 18” L
• Shipping Weight: 18.3 lbs

IMPORTANT DISCLAIMER & OPERATING LIMITATIONS

Audio Authority® authorizes this device for use ONLY by aviation professionals, such as licensed pilots and maintenance technicians, knowledgeable about their aircraft electrical system and batteries. The operational concepts, recommendations, and instructions presented in our manuals are necessarily general and make assumptions that do not apply to every aircraft, and may not be correct for your particular aircraft. Incorrect use of this device has the potential to damage the GPU and/or aircraft components. It is the operator’s responsibility to read completely and fully understand the included manual, plus those sections of the Aircraft Flight Manual and Maintenance Manual that pertain to their aircraft’s electrical system design, to determine the appropriate use of this, or any, external power source. If you cannot do this, do not use this product. Instead, consult the airframe manufacturer or a technician familiar with your specific aircraft type and configuration before connecting the GPU to your aircraft.

The Model M2827 provides 28-volt DC power for:

• avionics demonstration and testing
• database and firmware updates
• flight planning and cockpit procedures training
• troubleshooting and maintenance
• powered pre-flight inspections and battery top-off charging