The 3328QC is a full 28.5 Volt unit that will give faster, cooler starts on all turbine engines. The 50 Amp power supply is large enough to power various systems such as inverters, avionics and GPS. Always recharge after use until the green charger light appears. Once charged, leave the unit plugged in. Avoid fully discharging the batteries as damage to the cells may result.This patented combination ground power unit is designed for ground use and can be used on the ramp to conduct engine starting and will provide 28.5V of continuous clean no duty cycle power when plugged into 110 VAC or 220V AC wall power. The 3328QC-50 is a full 28.5 Volt unit that will give faster, cooler engine starts on all turbine engines. The 50 Amp power supply is large enough to power various systems such as inverters, avionics and GPS. Always recharge after use until the green charger light appears. Once charged, leave the unit plugged in. Avoid fully discharging the batteries as damage to the cells may result. To recharge the unit, simply plug it into an AC wall power outlet and leave it plugged in when not in use. The high tech proprietary chargers will maintain 100% battery charge without over charging the batteries. Built with the only cost effective patented Quick Change design in the world, the batteries in this unit can be easily changed in a matter of seconds without tools, training, or downtime. The environmentally responsible low VOC powder coating protect the case from wear and poor weather conditions and all-weather cover accessory is also available as an option for this unit to further protect it from inclement weather to gain the maximum performance and product life.
The Model 3328QC-50 amp GPU is a combination power supply and battery bank.
- 52 Amp Hours at 10-hour rate
- 28.5 Volt DC- 30.5 Volts at rest
- Sealed cells – non-hazardous
- Valve regulated high amperage output lead acid
- 2800 Peak Amps
- Patented Quick Change design for 10 second battery changes
- 50 amps DC continuous output at 28.5 Volts.
- No duty cycle, clean continuous power
- Over-voltage & over-current protection
- Reverse polarity protection
- Battery recharge time: 1-4 hours
- AC Input – 110V OR 220V- please specify when placing your order
- NOTE- When using more than 105 continuous amps, the batteries will make up the difference until they become depleted. On most aircraft, a low voltage relay will drop below a preset level. Once the GPU is dropped off, its voltage will rise and will be accepted again by the aircraft, then will immediately drop off again. This oscillation can cause damage to aircraft components.
When operating the continuous power supply unplug the battery disconnect. Although this unit is equipped with 28.5 Volt batteries, it will actually read 30.5 Volts at rest. Leaving the disconnect connected will deplete the batteries nearly 50% before their voltage reaches 28.5 Volts. Thus, only one-half of the battery capacity will be available for engine starting. By keeping the batteries separated from the continuous power supply, you will have full battery capacity for engine starts. If you need more than 50 continuous amps, using the battery disconnect will enable the batteries to make up for any amperage needed.
There are approximately thirty 110 volt and thirty 220 volt NEMA plugs in use. Also, customers have various receptacle at their hangars and MRO facilities and may require specific AC cord length to meet their requirements. Due to these facts, we do not automatically provide AC power cords. If you provide the NEMA plug number and specify the AC power cord length you require we will build a cord to be shipped with your unit for a small fee.
NOTE- PLEASE USE #12 or Larger AC EXTENSION CORD
For technical assistance, contact Jim Wurth, Chief Engineer/Product Designer/Pilot, directly at (928) 231-4536, toll free at (844) 901-9987 or via email at Jim@startpac.com.
All Start Pac™ products come with a 1-year warranty on workmanship and materials. Batteries are cycle-dependent and therefore are not covered under this warranty.
Please handle this unit in a responsible manner. Start Pac™ is not responsible for damages caused by misuse or neglect.
Batteries have no memory effect and can be recharged at anytime. Made in the USA.
Start Pac also offers a wide selection of ground power units and starting units for portable power and portable power supplies, such as the classic yellow aircraft starter unit. Browse our website to discover our extensive product line or visit our tutorial section to learn more about our power supply products. Have a question or need assistance with your order? Start Pac provides customer service support via phone and email, making it easy to find the yellow GPU or railroad locomotive starter unit you’re looking for.