DC-DC CONVERTERS AND BATTERY CHARGERS
Freemaq DC/DC / Freesun DC/DC — DC/DC converter for 1500 V storage systems
Country: Spain · Model: Freemaq DC/DC / Freesun DC/DC
The 1200 kW DC/DC converter for 1500 V systems connects a battery directly to the DC bus of a solar inverter. The DC-coupling design makes it possible to store the energy that the inverter would otherwise clip when PV generation is in excess.
- Power
- 1200 kW at 30 °C, 1040 kW at 50 °C
- PV and battery voltage
- 850–1500 V
- Max. current
- 1200 A
- Cooling
- forced air
Technical specifications
| Power | 1200 kW at 30 °C, 1040 kW at 50 °C |
|---|---|
| PV and battery voltage | 850–1500 V |
| Max. current | 1200 A |
| Cooling | forced air |
| Ingress protection | IP54 / NEMA 3R |
| Dimensions | 1.20 × 1.80 × 2.30 m |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
Both sides, PV and battery, operate in the 850–1500 V range, and the maximum current is 1200 A. At 50 °C the power drops to 1040 kW. Cooling is forced air, the enclosure has IP54 / NEMA 3R protection, so the converter is installed on an open site next to the inverter and the battery containers. The cabinet dimensions are 1.20 × 1.80 × 2.30 m. A storage unit on the DC bus does not need its own grid inverter and transformer, so the grid connection point remains one for the whole solar plant.
How to choose
The number of converters is determined by the power of the battery array that must be accepted from the DC bus, at 1200 kW per unit at 30 °C. Up to four such converters are connected to one Freesun HEMK central inverter. If the storage must deliver energy to the grid independently of the solar field, it is more appropriate to take a Freemaq PCSK or PCSM battery inverter of 5360 kVA.
Request a price and lead time
Freemaq DC/DC / Freesun DC/DC — DC/DC converter for 1500 V storage systems, Power Electronics. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What is DC-coupling in the Freemaq DC/DC?
The battery is connected through the converter to the DC bus of the solar inverter rather than to the AC grid. This way the storage is charged with the energy that the inverter limits.
What is the battery voltage range for the Freemaq DC/DC?
From 850 to 1500 V on both the PV side and the battery side, at a current of up to 1200 A.
Can the Freemaq DC/DC converter be installed outdoors?
Yes, the IP54 / NEMA 3R protection rating is designed for outdoor mounting, and the forced air cooling removes heat without a liquid circuit.
What is the power of the Freemaq DC/DC at 50 °C?
At 50 °C the converter delivers 1040 kW instead of 1200 kW at 30 °C, and in hot regions the calculation is based on the lower value.
What are the dimensions of the Freemaq DC/DC?
The cabinet measures 1.20 × 1.80 × 2.30 m and is placed on a foundation next to the inverter.
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Need a price, lead time or replacement?
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