Description
xVictron Energy Cerbo GX MK3
The Cerbo GX MK3 is Victron Energy's central communication and monitoring hub for solar, battery and inverter systems. It connects compatible Victron devices across a single installation, providing real-time data logging, remote monitoring via the VRM portal, and local control through a touchscreen display (sold separately). It is suited to off-grid, hybrid and marine installations where centralised system visibility is required.
Key Features
- Acts as the communication centre for Victron GX-compatible systems, aggregating data from inverters, chargers, batteries, solar charge controllers and more.
- Connects to the Victron Remote Management (VRM) portal via Ethernet or Wi-Fi for remote monitoring and configuration from any browser or the VRM app.
- Supports HDMI output and USB touchscreen input for use with the optional GX Touch 50 or GX Touch 70 display panels.
- Includes two VE.Direct ports, one VE.Bus port, one VE.Can port, and a USB hub for broad device compatibility across the Victron product range.
- Supports DVCC (Distributed Voltage and Current Control) for coordinated charging across multi-device systems.
- Built-in Bluetooth for initial configuration and local monitoring via the VictronConnect app.
- MK3 variant includes an integrated MK3-USB interface, removing the need for a separate MK3-USB adapter when connecting to VE.Bus devices.
- Supports generator auto-start, two-way AC input switching, and relay outputs for system automation.
Product Overview
The Cerbo GX MK3 replaces the original Cerbo GX and integrates the MK3-USB interface directly into the unit. This means installers no longer need a separate MK3-USB dongle to communicate with VE.Bus devices such as MultiPlus and Quattro inverter/chargers. The integration simplifies wiring and reduces the number of components required in the control cabinet.
All system data is logged locally on the Cerbo GX MK3 and synchronised to the VRM portal when an internet connection is available. The VRM portal provides historical graphs, alarm notifications, and remote firmware update capability. In installations without internet access, data is still logged locally and can be reviewed once connectivity is restored. The unit supports MQTT and Modbus TCP for integration with third-party building management or energy management systems.
The Cerbo GX MK3 does not include a built-in display. A GX Touch 50 or GX Touch 70 touchscreen panel connects via HDMI and USB and mounts separately. This keeps the core unit compact and allows display placement to be chosen independently of where the Cerbo GX MK3 is installed.
Specifications
- SKU: BPP900451130
- GTIN: 8719076080268
- Weight: 0.37 kg
- VE.Direct ports: 2
- VE.Bus port: 1 (with integrated MK3 interface)
- VE.Can port: 1
- Connectivity: Ethernet, Wi-Fi, Bluetooth
- Display output: HDMI (compatible with GX Touch 50 / GX Touch 70, sold separately)
- USB ports: 3 x USB-A
Applications
- Off-grid residential and commercial systems using MultiPlus or Quattro inverter/chargers with MPPT solar charge controllers.
- Marine and narrowboat installations requiring centralised monitoring of battery banks, inverters and shore power.
- Hybrid grid-tied systems where remote monitoring and generator auto-start are required.
- Van and vehicle conversions with multiple Victron components needing a single monitoring interface.
- Commercial energy storage systems requiring Modbus TCP or MQTT integration with a building management system.
What Is Included
- 1 x Victron Cerbo GX MK3 unit
Installation Notes
The Cerbo GX MK3 should be installed by a qualified electrician or experienced Victron installer familiar with VE.Bus, VE.Direct and VE.Can wiring. Correct network configuration is required to enable VRM portal connectivity. For systems connected to the grid, ensure the inverter/charger installation complies with G98 or G99 requirements as applicable. The unit itself operates at low voltage and does not require specialist high-voltage handling, but it is typically installed alongside high-voltage DC and AC equipment that does.
Return Policy
xWe offer a 14-day, no-quibble returns or replacement policy because we want you to be totally satisfied with your purchase.
If you are unhappy in any way with your purchase, you can return it for a refund or a replacement, as long as you return it in the same condition as it arrived (original/undamaged packaging and product) and within 30 days of receiving it. We will pay for your return postage on a faulty item as long as you send it using Royal Mail 2nd class recorded delivery (for EU or International Shipments, you have to use our UPS account, we will provide you with a return label)
Please keep in mind the following:
- Items returned within 14 days but not in their original and undamaged packaging will also incur a -15% charge per package.
- If you return an item that doesn't adhere to our returns procedure or doesn't include a returns form, you may be liable for a £10 administration fee
- Individual items from a bundle can't be returned, refunded or exchanged. If you want a refund/credit/exchange for a bundle, all items must be returned to us.
Before you return your item, please make sure that:
- You follow our returns process (outlined below)
- The goods and packaging are undamaged
IMPORTANT: We need to be able to identify an item with your order. We can only do this if you follow our returns process. Please do not send us items back that do not follow this process as they cannot be identified properly and will not be replaced or refunded.
What delivery method do I need to use when returning an item?
You must send the goods back to us via Royal Mail 2nd class recorded delivery. Refunds on faulty items returned are reimbursed within 5 working days.
Can I return just one item from multiple purchases?
Yes. Once you start the returns process you will go to a page that will allow you to choose which items you want to be replaced or refunded.
Returning faulty goods
If your item is faulty, you need to follow the returns policy, where you will be able to state that it’s faulty. The product will then arrive at our warehouse for testing.
If your purchase is not within 14 days
You can still exchange your item for a different product or for credit to use on the Voltacon Solar or Ledison-led-lights.co.uk websites (-15% from the credit amount).
Returns outside of the 14-day period do not qualify for the free returns policy.
Returning an item within the warranty
If you have a warranty and want to return a faulty item, you just need to follow our standard returns process. When we receive your item, we will then check that it’s within warranty and for any faults before arranging a replacement.