Fronius Checkbox 500V communication gateway
The Fronius Checkbox 500V is used to connect the Fronius Symo Hybrid to the LG Chem RESU H external battery.

Fronius Checkbox 500V communication gateway

The Fronius Checkbox 500V ensures reliable operation of the Fronius Energy Package with LG Chem RESU H, even in exceptional situations.
Since the battery is designed for 500 V and the inverter for 1000 V, the Fronius Checkbox 500V measures the voltage and separates the battery in the unlikely event of failure.
The inverter and battery cannot be connected directly, as overvoltage can occur in the event of a fault, leading to an unsafe state.
Features
| Environmental conditions |
| Protection class |
| Permissible ambient temperature | |
| 25 °C to +60 °C | |
| Maximum altitude | |
| ,000 m | |
| Permitted air humidity | |
| to 100% (non-condensing) | |
| Installation | |
| Indoor and outdoor (wall-mounted) | |
| Electrical specifications |
| Maximum input voltage |
| Onduleur |
| max. |
| in_INV |
| ,000 V |
| Battery | |
| max. out_BAT | 500 V |
| Maximum current | Idc max. in/max. |
| Out | 16 A |
| Power consumption |
| 450 V |
| .9 W |
| Dimensions and weight |
| Dimensions H x W x D | 26 x 19 x 7.5 cm | |
| Weight | |
| ,34 kg | |
| Standards and directives |
| Applied standards and directives | DBT (2014/53/EU), IEC 62109-1 |
| Connection technology | MC4 connector, M6 stud for ground | |


Data sheet
- Open circuit voltage (Voc)
- 500V
- Max. solar input voltage
- 1000 V
- Width
- 260 mm
- Height
- 190 mm
- Thickness
- 75 mm
- Weight
- 1,34 kg
Specific References
- UPC
- 768563817069
- EAN13
- 0768563817069
Fronius Checkbox 500V communication gateway — Inverters and converters
Fronius Checkbox 500V communication gateway by Fronius is available in our Inverters and converters catalog.
- open circuit voltage (voc): 500V
- max. solar input voltage: 1000 V
- width: 260 mm
- height: 190 mm
- thickness: 75 mm
- weight: 1,34 kg
Product weight: 1.3 kg. Reference: Fronius Checkbox 500V.