EAR series by ElectroAir: Reliable rectifiers for aircraft ground power
Trusted 28VDC power for every mission
ElectroAir’s EAR Series rectifiers are designed to provide stable, efficient, and aircraft-safe 28V DC power during maintenance, testing, and system startup. Whether you’re supporting narrow-body jets or regional aircraft, the EAR line offers professional-grade performance, mobility, and safety — trusted by aviation teams worldwide.
Explore EAR rectifiers
🔹 What is the EAR series?
🔹 Technical performance that delivers
🔹 Maintenance: Better prevented than repaired
🔹 Why choose ElectroAir?
🔹 Final thoughts
In aviation, there is no room for compromise. Every component of ground support infrastructure must operate reliably, safely, and consistently. From power supply systems to maintenance routines, even the smallest failure can lead to costly delays or safety risks. That’s why the quality of ground power equipment isn’t just a technical concern, it’s a strategic priority.
ElectroAir’s EAR series rectifiers were developed with this mindset. These professional-grade solutions deliver stable 28VDC power for aircraft maintenance, system testing, avionics checks, and engine start-up procedures. Built to endure harsh operating conditions, EAR rectifiers offer mobility, durability, and precision, whether used inside a hangar or on the tarmac. Trusted by international airports, MRO centers, and airlines around the world, EAR units are designed to meet the real-world challenges of modern aviation and keep aircraft systems powered, tested, and ready.
What is the EAR series?
The EAR series, short for ElectroAir Rectifier, represents a line of advanced 28V DC ground power units specifically engineered to support aircraft during ground operations. These rectifiers are essential tools for powering onboard systems, conducting avionics diagnostics, supporting engine start-ups, and ensuring readiness for flight.
ElectroAir offers a wide selection of EAR units tailored to different operational contexts. The EAR-600 and EAR-800 models are ideal for most commercial and general aviation needs, offering a reliable and stable power source for both narrow-body and wide-body aircraft. For more specific or space-restricted applications, the EAR-270 and EAR-300 provide a compact footprint without compromising performance. In environments where power redundancy or increased output is essential, the EAR-2×800 delivers a dual rectifier configuration capable of handling higher loads and ensuring operational continuity.
Every model is available in two formats: STD (stationary), designed for fixed installations in hangars or maintenance bays, and M (mobile), equipped with wheels for easy maneuverability on the apron. This flexibility allows airports, MROs, and ground handling operators to choose the optimal setup based on their workflow and space constraints. Built with durability and safety in mind, all EAR units comply with international aviation standards and are trusted by professionals around the globe.
Technical performance that delivers
Every EAR unit is engineered with reliability, flexibility, and efficiency in mind:
- Output voltage: 28VDC (regulated)
- Output current range: from 270A to dual 800A
- Efficiency rating: over 90%
- Cooling system: smart fan management
- Interfaces: touchscreen control, remote monitoring, GSE integration
Optional features include parameter logging, overheat and short circuit protection, EPO (emergency power off), and soft-start functionality – all to ensure safe operation for both equipment and aircraft.
Why choose ElectroAir?
ElectroAir has been developing ground power systems for over 15 years. Our rectifiers are used across civil, military, and business aviation sectors — trusted by major airports and airlines throughout Europe, Asia, and the Middle East.
Top advantages of the EAR Series:
- Proven performance under extreme conditions
- Compatibility with most aircraft systems
- Easy to operate and maintain
- Customizable configurations available
- Compliant with aviation-grade certifications
Final thoughts
The EAR Series isn’t just another piece of equipment, it’s a critical part of a well-functioning ground support ecosystem. Whether you’re performing routine maintenance, preparing an aircraft for departure, or running diagnostics, a stable and precise 28VDC power source is non-negotiable. That’s why so many aviation professionals trust EAR rectifiers to deliver consistent results in even the most demanding environments.
But reliability isn’t only about engineering, it’s also about proactive maintenance. Even the most durable rectifiers benefit from regular inspection, servicing, and care. By scheduling preventive maintenance, operators can extend equipment life, avoid costly downtime, and keep daily operations smooth and predictable.
Your aircraft deserves ground power that works as hard as your team does. The EAR Series delivers, day after day, year after year.
Need help choosing the right EAR model?
From compact units for small aircraft to dual-system powerhouses for high-demand operations – we’ll help you find the perfect fit. Contact our experts today and power your operations with confidence. Let’s talk about your technical needs and operational challenges.