UPS hybrid WKS Plus 3 kVA 48V


675,58 € tax incl.

UPS hybrid WKS Plus 3 kVA 48V 

WKS hybrid inverters are ideal for feed a housing consumption or empower a remote site
This inverter can supply consumers up to 3000W
The integrated charge 60 A MPPT controller allows up to 3000Wc panels
Possibility to put input the public grid or a generator for recharge the batteries
Completely customizable via the LCD screen of the inverter
Assured service in-house, spare parts available



replenishment lead time is 20 March 2022

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The ideal solution for your projects in consumption or in remote areas

The inverter generation


Enjoy a continuous supply and reliable q EU network is available or not. The energy produced by the inverters WKS is oriented and used intelligently for optimal performance. All priorities can be defined by the user: use of batteries, solar or the AC source (generator or network) Consumption, energy produced by your panels is in flux and is not for consumption. The WKS UPS stores part of the solar production in batteries for later use during the evening or night. In remote areas, the WKS inverter can be connected to a generator to ensure the charge of the batteries if they are empty and the insufficient solar production. This inverter is able to work with several different energy sources such as:

  • public network
  • photovoltaic panels
  • thermal generator
  • batteries 


Management by microprocessor directs energy based on production, consumption needs and the State of charge of the batteries. It is possible to carry out a follow-up in real-time locally or remotely. Inverter WKS feeding power into the grid.


Inverter schematic diagram

3 operating modes


  •  Solar priority 
  •  Relief
  •  Solar and network
 -The battery charge current setting
 -Possibility to limit or ban the load via the network
 -Input voltage from 90 to 280V (useful for fluctuating networks)
 -Economic mode (limitation of the auto consumption)
 -Fine tuning of the characteristics of the batteries
 -Automatic restart in case of overload and overtemperature
 -Possibility to limit the battery discharge in order to preserve their life expectancy
 -Return mode adjustable battery voltage 
 -Overload Bypass (allow to pass over the network in case of peak consumption)
 -Low battery safety

Power multi-energy


Example: for a need in consumption of 3kW, you can have a configuration: 

  • 1 kW provided by solar energy
  • 2 kW provided by batteries


This technique of multi power allows to strongly decrease the Battery Park and extend its life.
This inverter accepts up to 3000 Wc of photovoltaic panels, and can connect to the network or another source of renewable energy if the solar production is insufficient.



  • Residential, commercial and telecommunications 
  • Areas where electricity supply is unstable 
  • Areas that are not connected to the network

Use back-up mode


Use back-up mode

It is possible to use the ups as a "back-up", without solar panels. In this mode, the UPS will ensure the role of UPS to protect your devices from the network cuts.

The UPS protects computers and equipment audio-visual or any other sensitive charge by providing a stable current. It guarantees a power supply of consumers.
The electricity produced from these inverter pure sine is stable. 

Possibility to protect one or more rooms in your home through the distribution box.

Use in Off-grid mode (off-grid)

Use in Off-grid mode (off-grid)


In this configuration, the inverter uses panels to supply consumers and to charge the batteries when the Sun is present. The inverter draws aware of batteries to ensure the distribution of energy at night. 

There is possibility to add a generator on the inverter AC input to ensure a backup power supply.

Use in mode hybrid


Use in mode hybrid

The inverter takes power on the network only if the batteries are empty and that the solar production was not sufficient to cover the consumption.

The inverter back never power on the grid.

As for the "back-up" mode, it is possible to connect as a part of your installation domestic on the inverter. Consumers connected to the inverter will be always powered even if the grid power d e distribution. In addition, these consumers will be powered for free!

The models WKS 4.0 and 5.0 (with a respective capacity of 4 and 5 kVA) can connect in parallel so as to add their power. You can connect up to 4 devices in parallel to achieve a power of 20 kVA.

Converter Pure sine

Converter Pure sine


The WKS is an inverter pure sine voltage (pure sine wave) that reproduces a stream of similar quality to that of the public network. It can be used to power any device.

10 from 40A maximum charge current


10 from 40A maximum charge current


The integrated WKS a developing a MPPT charge controller 10 from 40A maximum charge current

MPPT regulator


MPPT regulator

The WKS has also the MPPT (Maximum Power Point Tracking) technology is to say he's looking at all times the maximum power point, which allows to get the best performance of the photovoltaic panels. In addition to providing increased energy to a facility, it optimizes the battery and prolongs their life. He scans the on-board tension to find the point of maximum power output and is capable of adapting the power provided by the Panel to align the voltage that the battery can receive.



  • Inverter pure sine
  • 3 kW MPPT solar charge controller
  • Configurable load current
  • Priority of the adjustable charging source (solar or network)
  • Compatible network and generator
  • Auto restart
  • Protection against overload, temperature and short circuits
  • smart battery for a longer lifetime of the charge.
  • Cold start function
  • USB port

 Inverter WKS 3kVadisplay inverter WKS plus 3kva 48V


 Incompatible with the remote display.



POWER3000VA / 2400W
Voltage230 VAC
Voltage range170-280 VAC (for computers)
90-280 VAC (for residential applications)
Frequency50 Hz / 60 Hz 
Regulation of the voltage AC (Batt. Mode)230VAC ± 5%
Peak power (5 sec)6000
Transfer time10 ms (for computers); 20 ms (for residential applications)
outputPure sine
Voltage nominal battery48 VDC
Types of batteriesAGM, GEL, open (configurable)
Algorithm of load3 steps 
Voltage in floating54 VDC (configurable)
Overload protection62 VDC
Maximum charge current10 or 15A (adjustable)
Power max PV3000 W
MPPT operating range30 ~ 115 VDC
Maximum PV open circuit voltage145 VDC
Load current max40A
Max performance98%
Consumption standby2 W
Dimension D x W x H (mm)140 x 295 x 479
Weight (kgs)11.5
Moisture5% to 95%
Operating temperature-10 ° C - 50 ° C
Storage temperature-15 ° C - 60 ° C


Product Reviews
  • Number of Reviews : 14
  • Average Grade : 4.6 /5
  • B. Ariane
  •  the 21/10/2021
  • 5/5
Apparemment bien
  • D. Aodren
  •  the 22/08/2020
  • 5/5
Produit conforme à l'attente, silencieux quand il fonctionne en solaire!
  • C. Olivier
  •  the 17/07/2020
  • 5/5
  • A. Anonymous
  •  the 23/04/2020
  • 3/5
Pas reçu dans la commande,
  • A. Anonymous
  •  the 31/03/2020
  • 5/5
Conforme à mon attente
  • A. Anonymous
  •  the 24/05/2018
  • 4/5
Fonctionne correctement. Le chargement du logiciel n'a pas marché mais je ne sais pas si c'est indispensable puisque l'onduleur, tel qu'il est livré, fonctionne normalement, y compris les commandes, paramètrages et visualisation.
  • A. Anonymous
  •  the 11/07/2017
  • 4/5
L'onduleur est à la hauteur de mes espérances actuellement : Look agréable, poids raisonnable, Installation facile, branchement aisé, montage mural simple et en plus il tient ses promesses ( la puissance générée avec 8 PV (1 KW) réduira mes factures de l'ordre de 35%, c'est pour le moment significatif.,Plus tard je passerai au modèle supérieur (l'ONDULEUR HYBRIDE MONOPHASÉ MULTISOLAR PLUS 5 KVA 12 PV BENQ (330W) et je serai ravi de ne plus payer de factures ;p. PS :4 étoiles seulement car le bruit généré par ses 2 ventilateurs et un peu gênant sinon pour le reste il est impeccable.
  • A. Anonymous
  •  the 15/04/2016
  • 5/5
Fonctionnel et ras
  • A. Anonymous
  •  the 05/02/2016
  • 5/5
La solution au délestage et rentabiliser ces projets!
  • A. Anonymous
  •  the 12/11/2015
  • 5/5
Très bon produit ! pas de déception. Seulement il fait un peu de bruit. Il est mieux a être installé dehors et pas dans le salon ou dans la chambre.
  • A. Anonymous
  •  the 17/10/2014
  • 5/5
  • A. Anonymous
  •  the 17/10/2014
  • 5/5
SAV formidable un coup de fil et on est servi bravo !!! A conseiller aux amis
  • A. Anonymous
  •  the 17/10/2014
  • 4/5
Bon mais j'ai l'impression de perdre du courant la nuit. Je ne suis pas branché sur le réseau et mon indicateur de charge baisse pdt la nuit. Normal?
› Comment from Wattuneed the 03/11/2014

Bonjour, Il peut être utile d'activer le mode économie d'énergie (paramètre 4) Contactez-nous si vous n'y parveniez pas !

  • A. Anonymous
  •  the 17/10/2014
  • 4/5
L'onduleur fonctionne correctement mais lorsque le réseau coupe, il y a une certaine latence et l'onduleur met - 1 seconde pour réalimenter le circuit. Cela ne pose pas de problème pour les appareils ménagers et éclairage mais par contre, c'est gênant pour y brancher du matériel informatique. Reste que pour ce prix, je ne peux pas non plus me montrer trop difficile. L'appareil est assez bruyant en charge et sera installé dans un local technique de préférence. Je suis bien conscient qu'il existe des onduleurs pour réseau autonomes de meilleur qualité mais je n'était pas prêt à mettre 3x le prix pour un sma par exemple. L'appareil chez moi rempli le rôle attendu.
› Comment from Wattuneed the 03/11/2014

Bonjour, La coupure d'une seconde ne devrait pas se produire. Tous nos bureaux sont sur cet onduleur et il passe souvent du réseau au solaire, sans coupures. C'est certainement un paramétrage à affiner. Reprenez contact avec nous et on fera le tour du menu ensemble

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