VARTA element backup | Product features

Electrochemistry cell

NMC

Mains connection

400 V AC, 3-phase, 50 Hz

Control, surveillance, monitoring

PC, tablet, smartphone

Smart Home interfaces

XML, Modbus TCP (SunSpec)

Visualisation of production data

PV sensor, data logger, SunSpec1

1 According to the compatibility list (available at: www.varta-ag.com/pulse-neo-compatibility).

Dynamic PV active power limitation

SunSpec1

1 According to the compatibility list (available at: www.varta-ag.com/pulse-neo-compatibility).

Visualisation

App, web portal, local web server2

2 VARTA.home app for Android and iOS

External relay control

Rutenbeck, Shelly, FRITZ!DECT

Technical data in detail

Electrochemistry

NMC

Security

Multi-level, hardware- and software-redundant cell monitoring

Mains connection/ forms

400 V AC, 3-phase, 50 Hz (TN and TT systems)

Rated current emergency power operation

5.8 A per phase

Overload emergency power operation

< 90 seconds

Country authorisations

DE, AT, CH

Protection class

IP 22

Ambient temperature

+5 °C to +30 °C

Noise emission typical/max.

42 dBA / 49 dBA

Battery capacity (nominal/usable)

Element backup 6: 6.5 / 5.9 kWh*
Element backup 12: 13.0 / 11.8 kWh*
Element backup 18: 19.5 / 17.7 kWh*

*90% depth of discharge, capacity measurement at 25°C with 0.2 C charging to 58.8 V and 0.05 C end-of-charge current; discharging with 0.2 C to 42 V.

Max. AC power (charging/discharging)

Element backup 6: 2.5 / 1.8 kW
Element backup 12: 4.0 / 3.7 kW
Element backup 18: 4.0 / 4.0 kW

Dimensions (W x H x D) in mm

600 x 1,176 x 500 mm

Functions

Energy management system

EMS VS-Pro 2

Smart Home interfaces

XML, Modbus TCP (SunSpec)*

* According to compatibility list

Visualisation of production data

PV sensor, data logger, Modbus TCP (SunSpec)*

* According to compatibility list

Dynamic PV active power limitation

Rutenbeck

*According to compatibility list

External relay control

Up to five VARTA energy storage units**

** Not for permanent off-grid operation. Check starting currents and loads!

Operating strategy

Self-consumption optimisation, PV yield optimisation

Emergency power function

Automatic switchover, black start capability via VARTA emergency power box***

*** In cascade operation, only one storage tank can provide an emergency power function

Hardware interfaces

RJ45 (Ethernet), 2x RJ12 (current sensor and PV sensor)

Visualisation

VARTA.energy app for Android and iOS, web portal and local web server