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10.1 Specification
Appendix
10.2 Atess Factory warranty
Note: PBD250 does not include battery pack, and the output is connected to PCS DC side or
battery; PBD350 has battery, and the output is connected to PCS DC side or battery;
250
450~900
500（100*5）
5
350
800~1300
480（240*2）
2
Recommended PV power（KW）
MPPT voltage range（V）
Max.input current（A）
MPPT number
Model
PBD250
PBD350
Battery voltage range（V）
Battery type
Max. Charging/discharging
power（KW）
Max. Charging/discharging
current（A）
None
None
None
None
650~900
Lithium/lead-acid
350
538
Battery voltage range（V）
Battery type
Max.discharging power（KW）
Max.discharging current（A）
600~850
Lithium/lead-acid
250
416
550~800
Lithium/lead-acid
350
500
Input(PV)
Battery（PBD350）
Output（Battery）
Note: when PBD250 is configured with PV and battery, pay attention to the voltage difference
between the front and rear stages. The PBD250 is a primary step-up circuit. The open circuit
voltage of PV needs to be lower than the lowest discharge point of the battery to ensure that the
voltage of the front stage is not higher than that of the rear stage. PBD350 is a two-stage step-
down circuit. The minimum voltage of PV is higher than the maximum voltage of battery, and the
minimum voltage of battery is higher than the maximum output voltage. Try to ensure that the
front stage voltage is higher than the rear stage.
Warranty period
The warranty period of this product is one year. If otherwise specified in the contract, the contract
shall prevail.
During the warranty period, the customer shall show the invoice and date of purchase to the
service personnel of ATESS. At the same time, the nameplate mark on the product shall be clear and
visible, otherwise, ATESS has the right not to provide warranty service.
Warranty conditions
In the event of failure during the warranty period, ATESS will repair or replace the product free of charge;
The failed machine shall be owned by ATESS; the customer shall Set aside some time to repair the faulty
machine.
Liability exemption
In case of the following circumstances, ATESS has the right not to conduct warranty:
Products without logo of ATESS Power Technology logo;
The product or component that has exceeded the valid warranty period of ATESS;
Failure or damage (such as high temperature, low temperature, too wet or dry, high altitude, unstable
voltage or current, etc.) caused by working in beyond-specified environment or wrong installation, storage
or use that violates the instructions;
Failure or damage caused by unauthorized installation, repair, modification or disassembly;
Except for those authorized by the after-sales center of ATESS;
Failure or damage caused by using components that not supplied by ATESS;
Failure, damage or transportation damage caused by accident or human factors (operation error,
scratching, carrying, bumping, improper voltage connection etc.), ;
Failure or damage caused by force majeure (such as earthquake, lightning, fire etc.);
Failures or damages caused by other factors rather than quality problems of the supplied product
itself(including components).
10.3 Contact
If you have technical problems concerning our products, contact your installer or ATESS. During inquiring,
please provide below information:
·Inverter type
·Modules information
·Communication method
·Serial number of Inverters
·Error code of Inverters
·Display of inverters
41 42
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