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enecess E2402-ecoSub Expansion Module-10-Channel for ecoMain
86,55 € excl. VAT
Expand your ecoMain by 10 circuits per module. The enecess E2402 ecoSub clips onto the DIN rail beside an ecoMain energy monitor and connects with a single ecoBus cable, taking a system from 10 up to 40 monitored branch circuits.
Supplied with five 30 A ecoSensors. Requires an enecess ecoMain (E2401) main unit.
| Weight | 0,085 kg |
|---|---|
| Dimensions | 6,6 × 3,6 × 7,8 cm |
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Add 10 more circuits to your ecoMain
The enecess E2402 ecoSub is the expansion module for the enecess E2401 ecoMain energy monitor. Each ecoSub adds 10 branch-circuit channels, so a single ecoMain grows from 10 to 20, 30 or 40 monitored circuits as the installation demands.
It clips onto the DIN rail beside ecoMain and connects with one ecoBus cable. Voltage reference, data and power all come from ecoMain, so there is no separate voltage wiring per module. The new channels appear in the enecess app, over Modbus TCP and in Home Assistant alongside the existing ones.
Note: ecoSub is not a stand-alone meter. It requires an enecess ecoMain (E2401) main unit.
Features
- Grow as you go – start with ecoMain and add channels when a heat pump, wallbox or new sub-board arrives, without replacing hardware
- 10 channels per module – up to 3 ecoSub modules per ecoMain for 40 branch circuits in total
- Single-cable cascading – one ecoBus cable per module carries power, data and the voltage reference from ecoMain
- Five 30 A ecoSensors included – ultra-slim clip-on current sensors that fit crowded distribution boards
- Flexible layout – modules can be mounted in different parts of the board; sensor phase and direction are assigned in the app
- Same data, same integrations – ecoSub channels are available in the enecess app, via Modbus TCP and in Home Assistant
- Low consumption – about 1 W per module
What’s in the box
- 1 × enecess E2402 ecoSub expansion module
- 5 × 30 A ecoSensors (current sensors)
- 1 × ecoBus cable (connection to ecoMain)
- 1 × User manual
Five further sensors can be added per module (sold separately) to use all 10 channels.
ecoSub Specifications
|
Specification |
Details |
|---|---|
|
Product |
enecess ecoSub expansion module (model E2402) |
|
Compatible main unit |
enecess ecoMain (E2401) – required |
|
Current measurement channels |
10 × 30 A branch circuits |
|
Maximum per ecoMain |
3 × ecoSub (up to 40 branch channels in total) |
|
Connection to ecoMain |
ecoBus cable (power, data and voltage reference) |
|
Power consumption |
Approx. 1 W |
|
Operating temperature |
-20 to +60 °C |
|
Mounting |
DIN rail |
|
Dimensions (W × H × D) |
36 × 78 × 66 mm |
|
Net weight |
85 g |
|
Included ecoSensors |
5 × 30 A; ±1% typical accuracy; maximum conductor diameter 8 mm; 0.4 m lead |
Product Downloads
- Click here to download the enecess ecoMain system brochure (includes ecoSub specifications)
- Click here to download the enecess ecoMain User Manual_EN (includes ecoSub installation)
- Click here to download the enecess ecoMain User Manual_DE
- Click here to download the enecess ecoMain Quick Guide_EN
- Click here to download the enecess ecoMain Quick Guide_DE
Frequently Asked Questions
Meter data analysis, visualisation and reporting
We have created an Excel template that can analyse the data and visualise it with graphs. It has the following features and graphs.
- Maximum power per minute, hour and day
- Energy usage per minute, hour and day
- Maximum voltage per minute, hour and day
- Limit data displayed to a specific day or hour
- Supports three-phase and single-phase setups
This template and support with importing the data and using the template are included free of charge when purchasing this meter.
The template is very easy to use even for users that is not that familiar with Excel. We have also created step by step instructions document and video.

Warranty
All measurement instruments sold by AmpX are covered by the manufacturer’s warranty (typically 24 months on the main instrument, 12 months on accessories such as test leads, clamps and batteries). Exact terms are stated on the warranty card supplied with the device.
What you get at AmpX:
- Warranty handled locally in Germany and South Africa — no overseas returns required
- 30-day no-questions-asked return policy
- Local spare parts and repair service for selected brands, like Meatrol.
- Direct technical contact by phone, email or WhatsApp for any warranty issue
Warranty issue? Please contact us:
E-Mail: info at ampx dot co
WhatsApp: +49 160 491 4331
Call: +49 160 491 4331
AmpX Management


Technical support
If you have any difficulty with the meter setup, installation, data analysis, or anything else, we will gladly support you.
Please contact our technical support department for technical support
E-Mail: info at ampx dot co
WhatsApp: +49 160 491 4331
Call: +49 160 491 4331

Why buy at AmpX
- Local warranty support, we have offices and warehouses in Germany and South Africa.
- Local parts and repairs, we keep stock of parts and can repair equipment if required.
- Quick delivery, we only sell products that are in stock. Once we receive payment, goods are delivered within one week.
- Specialist support, we specialise in energy logging and reporting. If you have any questions, we are willing and able to support you. If you need assistance with meter setup, installation, data download, or data analysis, we can support you. Access to experienced electrical engineers by phone, WhatsApp and email.
- Peace of mind, you can return any product within 30 days, no questions asked.
- 2-year warranty, one additional year to the normal one year manufacturers warranty.
- Additional value, we might not be the cheapest, but we provide additional value above and beyond just delivering a product.
- Get the expertise and ongoing support that large online marketplaces can’t provide.

supporting professional energy projects in
Europe and South Africa.
Free Demonstration
We can offer you a free demonstration of our energy meters at our premises or within 100 km. If further away, we will need to charge for our travel expenses.
Alternatively we can also do an online video consultation and demonstration.
Click here to request a demonstration if 100 km from our address.
Click here to schedule an online video call and demonstration.

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