EM4301
Three-phase, direct-connected
- Current
- Max. 100 A
- Connection
- Direct
EM4301 / Energy Measurement
EM4301 — Three-phase direct electricity meter
Direct-connected three-phase metering, up to 100 A.
EM4301 measures a three-phase supply through a direct connection up to 100 A. Read electrical values on its display and report measurements over LoRaWAN.
YOBIIQ / EM4301- Phases
- 3
- Direct measurement limit
- 100 A
- Connection
- Direct
- Wireless reporting
- LoRaWAN
About this product.
The EM4301 is a direct-connected, DIN-rail electricity meter for three-phase installations. The load current passes through the meter, with a measurement range of 0.005–100 A. It records voltage, current, power and energy, including imported and exported energy.
Installation involves connecting the meter into the electrical circuit. Plan the wiring changes and supply isolation with the installer. Read values locally on the display or bring them into your application over LoRaWAN.
EM4301 is at End of Sale and is being replaced by the DEM series. This page supports existing installations and replacement planning.
CHOOSE YOUR MODEL01 / MODELS
The connection your project needs.
Compare the configurations and explore the specifications of each model.
IN YOUR ENVIRONMENTPRACTICAL USE CASES
Find the consumption worth investigating.
The useful question is not just how much energy a building uses, but where, when and what changed.
EXAMPLE APPLICATIONOffices & shared spaces
Offices & schoolsDiscuss a similar project
Understand the overnight baseline
An electricity bill shows a total, but it does not tell a facilities team what remains active after everyone leaves.
WHERE YOBIIQ COMES IN
Measure selected circuits and compare operating hours with evenings and weekends in your application. Investigate unexpected demand against the equipment and opening schedule for that area.
A focused list of consumption patterns to investigate before deciding what to change.
EXAMPLE APPLICATIONPlant rooms & equipment
Property portfoliosDiscuss a similar project
Compare spaces and sites
Whole-building totals can hide differences between units, common areas and separate properties.
WHERE YOBIIQ COMES IN
Choose measurement points that reflect how the property is managed. Group the readings by area or site and compare equivalent periods with the relevant occupancy context.
A more useful conversation about which spaces need attention and why.
EXAMPLE APPLICATIONBuildings & portfolios
Energy & operations teamsDiscuss a similar project
Measure the effect of a change
A new operating schedule or equipment change needs more than a lower bill to show what happened.
WHERE YOBIIQ COMES IN
Record a baseline, apply the planned change and review the same measurement points afterwards. Account for differences in operating hours and occupancy when interpreting the result.
A traceable before-and-after record for the team’s energy decisions.
EXPLORE THE POSSIBILITIES02 / CONNECT THE DOTS
A closer look. A clearer picture.
Explore how this device fits into a connected environment.
EM4301 measures a three-phase supply through a direct connection up to 100 A. Read electrical values on its display and report measurements over LoRaWAN.
Your device communicates over LoRaWAN. A gateway forwards its messages to a network server, ready for your application to use.
Bring device information into a monitoring platform. Follow readings and events together, with a clearer picture of the environment you manage.
What the device does
- Measures voltage, current and power.
- Records imported and exported energy.
- Sends meter readings over LoRaWAN.
- Shows electrical values on its display.
UNDERSTAND THE OPERATIONDEVICE + APPLICATION
See what happens.
Step by step.
The EM4301 measures load current directly through the meter and reports readings over LoRaWAN.
HARDWARE SELECTION Information / action
- Electrical supplyCorrect phase & capacity
- Direct meterIn-line measurement
- LoRaWAN networkNetwork server + gateway
- Your applicationDecode, display & act
01 / IN PRACTICE
Direct-connected metering
The load current passes directly through the EM4301, up to a maximum of 100 A. The installer plans the required wiring changes and supply isolation.
A new or modified three-phase distribution board with a current up to 100 A.
FITS INTO YOUR WORLDNETWORKS & PLATFORMS
Your network.
Your way of working.
Connect the device to a LoRaWAN network, then bring its data into the application your team uses. Each layer has a different job.
01
Network servers
Connect devices and route their LoRaWAN messages.
02
Application platforms
Turn decoded data into dashboards, history and actions.
Use the EM4301 family payload decoder with the correct direct-meter configuration. Confirm units, phase mapping and reporting settings during integration.
Plan your integration THE APPLICATION LAYER
From meter readings to a working overview.
Compare consumption, review trends and investigate reported events. This published YOBI Cloud example shows how energy data can be organised; the available fields depend on the meter and integration.
Explore the platform example
DESIGNED WITH PURPOSE03 / THE DETAILS THAT MATTER
Small details. Real capability.
Three-phase direct connection up to 100 A
Voltage, current, power and energy measurement
Bidirectional energy recording
DIN-rail mounting and local display
Wireless LoRaWAN reporting
THE TECHNICAL VIEWFUNCTIONS & INTEGRATION
The details behind the decision.
A practical overview to help you specify the right device and the system around it.
Product documentation| Model | EM4301 |
|---|---|
| Application | Three-phase energy metering |
| Connection | Direct-connected |
| Measured current range | 0.005–100 A |
| Nominal voltage | 230 VAC (L–N) / 400 VAC (L–L) |
| Frequency | 45–65 Hz |
| Measurements | Voltage, current, power, power factor, frequency and energy |
|---|---|
| Communication | LoRaWAN |
| Mounting | DIN-rail |
| Logging interval | 5–60 min |
| Operating temperature | −25 to +55 °C |
SPECIFY IT FOR YOUR PROJECT
Check your configuration This page is for the direct-connected EM4301. For an existing installation using current transformers, open the separate EM4301-CT page. Select a DEM replacement according to the required current and connection.
FROM SELECTION TO SITEPLAN YOUR INSTALLATION
A good deployment starts here.
Four things to settle before the first device goes into service.
- 01
Choose measurement points
Decide whether you need a building total, a circuit view or separate readings for individual spaces.
- 02
Match the electrical installation
Confirm the three-phase connection, current up to 100 A, planned supply isolation and cabinet space with the installer.
- 03
Bring readings into the platform
Commission the LoRaWAN connection and verify units, timestamps and the selected reporting interval.
- 04
Record the baseline
Collect a representative period and label the measurement points before using the data to assess changes.
QUESTIONS, ANSWERED
Before you choose.
Practical answers about EM4301 — Three-phase direct electricity meter.
Ask us something elseHow does the EM4301 measure current?
The load current passes directly through the EM4301. Its direct measurement range is 0.005–100 A. Installation requires the appropriate circuit wiring and planned supply isolation.
Is EM4301-CT the same product?
No. EM4301 is the direct-connected meter. EM4301-CT is a separate meter that uses external current transformers and has its own product page. EM2101 is the separate single-phase model with an integrated relay.
Can I compare several buildings?
Yes. A connected application can group device readings by building, area or measurement point. Useful comparisons require consistent units, time periods and context such as opening hours or occupancy.
Does the meter automatically reduce consumption?
Measurement helps identify opportunities and check the result of an intervention. Savings depend on what changes are made to equipment or operation. A dashboard by itself does not change the electrical demand.
How is this different from the DSMR Reader?
An electricity meter creates a measurement at the selected electrical connection. The DSMR Reader obtains information that an existing compatible smart meter makes available through its P1 port. The right choice depends on where the data is needed and what is already installed.
Can I still order an EM4301?
EM4301 is at End of Sale and is being replaced by the DEM series. Contact us to select a replacement or discuss an existing installation.
BUILT FOR REAL DEPLOYMENTS
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Tell us what you want to connect, monitor or control. We’ll help you find a starting point.
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