Tronair 112850D0200 Dual-Output 28V DC Aircraft Rectifier/Ground Power Unit (GPU) (CE) – 50 Hz

The Tronair 112850D0200 28V DC aircraft rectifier is ideal for maintenance, servicing, and APU starting on parked aircraft requiring reliable DC ground power. With 600 amps continuous and up to 2,000 amps peak output, it supports both routine avionics power-up and high-demand start conditions. Its 50 Hz configuration makes it particularly suitable for international facilities operating on 50 Hz electrical systems. This makes it a strong fit for MRO facilities, FBOs, and military installations outside North America.

Low-voltage ripple helps protect sensitive avionics, flight control systems, and onboard electronics from unstable power delivery. Clean 28.5V DC output reduces the risk of electronic interference or component stress during maintenance and troubleshooting. For modern aircraft systems, consistent DC power is critical for diagnostics and software updates. A low-ripple aircraft rectifier supports both safety and long-term equipment reliability.

The dual-output configuration allows technicians to support two aircraft systems or aircraft sequentially without reconfiguring cables. This reduces repositioning time and improves ramp workflow. In busy hangar environments, a dual-output 28V DC GPU increases operational flexibility. It can also support aircraft requiring multiple DC inputs during maintenance events.

The rectifier includes comprehensive input and output protection systems, including over-/under-voltage protection, overcurrent protection, phase-loss detection, and transformer and SCR over-temperature protection. These safeguards protect both the aircraft and the ground power unit from electrical anomalies. Built-in protection reduces the risk of costly component damage. This layered approach supports safe aircraft servicing in demanding environments.

Yes, the 112850D0200 provides up to 2,000 amps of peak output, making it suitable for APU starting applications. The adjustable current limiting feature allows operators to control output levels based on aircraft requirements. This ensures sufficient starting power while maintaining system protection. Properly configured DC ground power is essential for reliable APU engagement.

This model operates on 3-phase, 50 Hz input power with a voltage range of 200V to 480V ±10%. Facilities must confirm that the electrical infrastructure is adequate before installation. Proper grounding and input capacity are critical to maintaining a consistent 28.5V DC output. Verifying facility compatibility ensures optimal GPU performance.

The energy-saving thermal control cooling fan activates as needed to manage internal temperatures. Controlled cooling reduces unnecessary component wear while preventing overheating under load. Effective temperature management extends the lifespan of transformers and SCR devices. This reduces maintenance costs over time.

Yes, the unit features a durable frame with large rubber rigid and lockable swivel casters for mobility. This allows technicians to maneuver the 28V DC ground power unit under aircraft wings and within confined hangar spaces. The low-profile design improves clearance under most aircraft. Mobility enhances efficiency in multi-aircraft service environments.

The dual-output configuration uses AN 2551 aircraft DC plug connectors. These connectors are widely recognized in 28V DC aircraft ground power applications. Standardized connectors simplify compatibility across a broad range of aircraft platforms. Using approved DC plugs ensures secure and stable power transfer.

The 112850D0200 is specifically engineered for facilities operating on 50 Hz electrical systems. Using a rectifier matched to the local frequency prevents performance inconsistencies or electrical inefficiencies. International operators and overseas bases commonly require 50 Hz-compatible ground power units. Selecting the correct frequency model ensures compliance and optimal output performance.