The Voltmaster Controller

The smart workhorse of every installation

The beating heart of every professional energy installation: a powerful, modular industrial controller for energy storage optimisation, load balancing, PV curtailment and forecasting.

Request a quote Installation guide
The Voltmaster Controller, an industrial DIN-rail controller

750+

projects delivered

99.7%

uptime

85%

fewer manual interventions

Built for the field

  • Clips onto a DIN rail: 24 V DC supply, wired Ethernet, modular and expandable.
  • Algorithms run locally: if the internet drops, the installation keeps optimising and syncs automatically once the connection returns.
  • Secure by design: outbound connections only, no open ports in your customer's network. Remote support over a secured channel.
  • Modbus TCP/IP: talks to batteries, inverters, meters and EV chargers; RS485 devices connect via an adapter (EP E300, Sollae, Waveshare).
  • Commissioning in under an hour: wizard-based setup in the platform, every connection tested with one click. Remote commissioning is fully supported.

Technical specifications

Processor
Broadcom BCM2711 quad-core ARM Cortex-A72
Clock speed
1.5 GHz
Memory
1 GB RAM
Storage
16 GB industrial eMMC
Network
1 Gigabit LAN
USB
2× USB-A 2.0
Power supply
24 V DC
Mounting
DIN rail, modular
Protection class
IP20
Installer mounting the Voltmaster Controller in an electrical cabinet

How it works

One controller steers the entire site

The Voltmaster Controller connects every source and every consumer. The algorithms run locally: if the internet drops, the installation simply keeps optimising.

THE BRAIN Voltmaster Controller Solar PV Grid Battery EV chargers Consumers energy flow control signals
Power follows the grid. The brain of the site, the Voltmaster Controller, steers every device, every single second.

From quote to handover in three steps

Prepare

Create the project in the platform, set grid limits and the energy contract, and choose the control strategy. Collect site data and map the energy flows.

Connect

Mount the controller on the DIN rail, connect power and network, and add devices through the wizard. Every connection is tested with one click.

Relax

The algorithm takes over. Automatic monitoring and alerts keep you and your customer informed: 85% fewer manual interventions.

Commissioning on site: reviewing the Voltmasters documentation at the electrical cabinet
Commissioning on site: every connection tested and documented before handover

Ready to make your first project pay off?

Tell us about your next installation. We will show you the platform, help you build the business case and guide you from first quote to certification.

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