Description
xEnergy Meter VM-3P75CT — REL200300100
The Victron Energy Meter VM-3P75CT is a three-phase energy monitoring device designed for use with Victron GX systems. It measures import and export energy across all three phases, giving installers and system operators accurate, real-time visibility of grid consumption and feed-in. Suitable for residential, commercial and off-grid hybrid installations where precise energy accounting is required.
Key Features
- Three-phase energy metering with individual phase measurement for accurate grid monitoring.
- Includes 75A current transformers (CTs) for non-invasive current measurement without breaking the circuit.
- Integrates directly with Victron GX devices (Cerbo GX, Venus GX, CCGX) via RS485 connection.
- Measures both import and export energy, making it suitable for solar feed-in monitoring and grid interaction tracking.
- Compact and lightweight at 0.25 kg, suitable for installation inside a consumer unit or distribution board enclosure.
- Compatible with Victron VRM portal for remote monitoring and historical energy data logging.
Product Overview
The VM-3P75CT connects to a Victron GX device over RS485 and reports real-time power, voltage, current and energy totals for each phase. This data feeds directly into the GX device's energy management logic, allowing the system to make informed decisions about battery charging, grid feed-in and load management. For installers commissioning three-phase hybrid or grid-tied systems, having accurate per-phase data is essential for correct system behaviour and regulatory compliance.
The included 75A split-core current transformers clip around existing conductors without requiring the circuit to be de-energised during installation of the CTs themselves. This simplifies retrofitting into existing switchgear. The meter communicates over a standard RS485 bus, and multiple meters can be used within a single GX system where the installation requires monitoring at more than one point, such as separately metering a generator input or a sub-distribution board.
Data from the VM-3P75CT is visible locally on any connected GX display and remotely through the Victron VRM portal. This makes it straightforward to track consumption patterns, verify solar yield against grid import, and produce energy reports for commercial or billing purposes.
Technical Specifications
| Parameter | Value |
| SKU | REL200300100 |
| Phases | 3-phase |
| Current Transformer Rating | 75A (split-core CTs included) |
| Communication Interface | RS485 |
| Compatible GX Devices | Cerbo GX, Venus GX, CCGX and other Victron GX products |
| Weight | 0.25 kg |
| GTIN | 8719076059462 |
Applications
- Grid import and export monitoring in three-phase residential or commercial solar installations.
- Feed-in metering for systems with battery storage and grid interaction, including ESS (Energy Storage System) configurations.
- Monitoring generator input or sub-distribution boards as a secondary meter within a GX system.
- Retrofit energy monitoring in existing three-phase switchgear without circuit interruption.
- Commercial sites requiring per-phase energy data for billing, reporting or load balancing purposes.
What Is Included
- 1x Victron Energy Meter VM-3P75CT (REL200300100)
- 3x 75A split-core current transformers
Installation Notes
The VM-3P75CT must be installed by a qualified electrician. Work inside a live distribution board or consumer unit carries significant risk and must comply with BS 7671 (IET Wiring Regulations). The meter connects to a Victron GX device via RS485; ensure the correct RS485 to USB interface cable is available if your GX device does not have a dedicated RS485 port. For grid-connected systems operating under G98 or G99 conditions, confirm that the energy meter placement and system configuration meet DNO requirements. Do not exceed the 75A CT rating on any phase.
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.