WECO 5K3-XP-EMEA
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Product Overview
The WeCo 5K3-XP is a Stackable Battery Module with a DUAL VOLTAGE module that can be used in a Low Voltage
configuration or in a High Voltage configuration.
For LOW VOLTAGE (48.5-58.4 Vdc)* Configuration Refer to Section 2
For HIGH VOLTAGE (80/200-750Vdc)* Configuration Refer to Section 3
*Voltage ranges are estimates only as they always depend on interactions with other devices and ambient conditions.
Information in this Manual
About this Manual
This manual relates only to the 5K3-XP (EUROPE VERSION) Stackable Battery Module. Only trained and authorized
personnel should install, troubleshoot, or assist WECO in local repairs of these Battery Modules. This manual should be
reviewed in its entirety for proper storage, installation, and operation of the Battery Module.
Use Range and Voltage Range
This installation guidance applies for the High Voltage and Low Voltage Inverters.
Make sure to use the correct inverter charging parameters before connecting to the battery.
Each WeCo 5K3-XP Battery Module has two different circuits and depending on the inverter voltage range, the installer
must choose the correct battery configuration for that range, never use the LOW VOLTAGE screw terminal for serial
connection, never use the HIGH VOLTAGE terminal for LOW VOLTAGE connection or to recharge the battery as the HV
CIRCUIT on the Battery Circuit Is not protected by contactor or MOSFET for Overvoltage( This protection function is made by
the HV BOX )
HV BOX for EU (EMEA VERSION) is designed to operate from 80 up to 750Vdc, if you need an HIGH Voltage HV BOX XP
please order the HV BOX XP type B ( EU type B version with Voltage Ranges starting from 150Vdc to 1000Vdc)
Additional Information
Product specifications subject to change without notice.
IMPORTANT NOTICES
：
HV BOX ( EMEA VERSION) has a minimum startup voltage of 80 Vdc, (two 5K3XP modules in serial connection) however it is
suggested to use a minimum of four modules to have an adequate buffer of energy to prevent low voltage shutdown of the HV
BOX during a long period of the inverter on standby, or due to solar charger inactivity.
The Start Up of the Inverters is typically above 100Vdc, make sure to consider the Inverter Battery Voltage Range Before setting
up the battery Cluster.
The HV BOX can turn on with a minimum of 80Vdc however it is mandatory to comply with the inverter Nominal Voltage. Below
80Vdc the HV BOX will shuts down and the safety protection cannot be granted.
For the calculation of the energy of a cluster (in both LV and HV systems) the nominal capacity of a battery is generally counted in
5.2kWh because of the multiple connection inefficiency due the different voltage and resistance between modules.
As HV system the cluster total usable energy might be reduced due the imbalances between modules, always consider to fully
balance the single modules before composing the HV cluster to maximize the energy usage of the cluster
NOTE:
A difference of 0,5V between modules connected in series can result in over 40% of less usable capacity due the BMS
intervention for Higher or Lower voltage limit of the single module into the HV CLUSTER.
Symbols meaning
CAUTION
：
CAUTION represents hazardous situations which can cause injuries if not avoided.
NOTICE
：
NOTICE represents the situations which can cause damage to property if not avoided.
INFORMATION
：
INFORMATION provides tips that are valuable for optimum installation and operation of the product