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EMT43x family · 4 DIN modules
EMT430
Three-phase power analyser in 4 DIN modules, self-powered, with Ethernet, Wi-Fi and touch display.
- No power supply to wirePowered from the line it measures, 85 to 265 Vac L-N.
- Class 0.2 S, always connectedRS485, Ethernet and Wi-Fi together, with web server and MQTT.
- Cloud-readyLogging to SD or USB; LoRa or 3 digital input expansion.
Class 0.2 Sactive energy
6400samples/s at 50 Hz
4 modulesDIN · 90×61×72 mm
63°harmonic (FULL)
Technical specifications
Technical data
The boxes highlighted in green are specific to the EMT430; the others are common to the whole EMT43x family.
Power supplyEMT430 only
- Type
- Self-powered from the voltage inputs
- Voltage
- 85–265 Vac L-N · 150–450 Vac L-L · 45–65 Hz
- Consumption
- < 3,5 W
Insulation and expansionsEMT430 only
- Power supply / measuring inputs
- Not isolated (self-powered)
- RS485 / measuring inputs
- 4 kV
- Power supply / RS485
- 4 kV
- Expansion (optional)
- LoRa or 3 digital inputs up to 3.2 kHz (dry contact or NPN, max 24 Vdc)
Measuring inputs
- Rated voltage
- 85–265 Vac L-N · 150–450 Vac L-L
- Operating frequency
- DC / 1–65 Hz
- .I input (current-output CT)
- In 5 A (or 1 A) · Imax 6 A · starting current 5 mA · < 1 VA per phase · overload 40 A for 500 ms
- .V input (333 mV / Rogowski)
- Vn 333 mV · Vmax 500 mV · 220 kΩ · built-in integrator for Rogowski coils
- Measurement type
- TRMS · 6400 samples/s at 50 Hz, 7680 at 60 Hz
Accuracy (25 ± 5 °C, 50 Hz)
- Active energy
- Class 0.2 S (EN 62053-22) · class C (EN 50470-1/3)
- Reactive energy
- Class 0.5 S (EN 62053-24)
- Voltage · current
- ± 0.1 % rdg
- Power
- ± 0.1 % rdg (5–100 % In) · ± 0.2 % rdg (1–5 % In)
- Frequency
- ± 0,01 Hz (45–65 Hz)
- THD · harmonics
- ± 0.3 % · magnitude ± 1 % up to the 16th, ± 2 % up to the 63rd
Communication and outputs
- RS485
- Modbus RTU · 1200–115,200 baud · up to 247 addresses
- Ethernet
- 10/100 Mbit/s · Modbus TCP, HTTP, MQTT, SNTP · up to 10 clients
- Wi-Fi
- 2.4 GHz 802.11 b/g/n · Modbus TCP, HTTP, MQTT · station and access point
- NFC · USB · SD
- Configuration, time-stamped logging to SD, USB or internal memory
- Digital output
- 1 solid-state (opto-MOS) · < 40 V, < 100 mA · alarm or pulses/kWh
- Configuration
- Built-in web server and app · from cloud (FULL)
General
- Display
- 2.2" colour 320×240, capacitive touch
- Dimensions
- 90×61×72 mm · 4 DIN modules · grey PBT
- Protection rating
- IP20 · pollution degree 2
- Temperature
- Operating −25 to +65 °C · storage −40 to +85 °C
- Humidity · altitude
- 10–90 % non-condensing · up to 2000 m
- Measurement category
- CAT III 300 V
- Standards
- EN 61010-1, EN 61010-2-030 · EN 61000-4-2/3/4/5/6 · EN 55032 class B
Versions
BASE o FULL
Same hardware, same basic measurements. The FULL version adds power quality, logging, oscilloscope and cloud connection.
| Function | BASE | FULL |
|---|---|---|
| Real-time measurements: voltages, currents, power, cos φ, frequency | ||
| Bidirectional active, reactive and apparent energy counters | ||
| Average, maximum and minimum values, peaks and max demand | ||
| Voltage harmonics and current interharmonics up to the 63rd | — | |
| THD and TDD, distortion power factor, K-factor | — | |
| Power quality events: dips, undervoltages, overvoltages | — | |
| Measurement logging, exportable from the web server | — | |
| Oscilloscope via web server and RS485 | — | |
| MQTT and connection to Chronos Cloud | — |
Order codes
12 order codes for the EMT430
Choose the type of current sensor and the version, then press + to add the code to the quote request. Click a code to copy it.
| Input | Version | No expansion | LoRa | Digital inputs |
|---|---|---|---|---|
| I · TA 5 A (o 1 A) | BASE | EMT430.I.BASE | EMT430.I.BASE.LORA | EMT430.I.BASE.DIN |
| FULL | EMT430.I.FULL | EMT430.I.FULL.LORA | EMT430.I.FULL.DIN | |
| V · 333 mV CT or Rogowski | BASE | EMT430.V.BASE | EMT430.V.BASE.LORA | EMT430.V.BASE.DIN |
| FULL | EMT430.V.FULL | EMT430.V.FULL.LORA | EMT430.V.FULL.DIN |
Format: MODEL.INPUT.VERSION[.EXPANSION] · .LORA = LoRa expansion · .DIN = 3 digital inputs. Configurator and codes for all EMT models →
Current sensors
Compatible sensors
The sensor depends on the input chosen in the order code. With Chronos CTs the app corrects the signal's magnitude and phase shift.
.ICTs with 5 A (or 1 A) output
KCTSplit-core · Ø 16–36 mm · 100–400 A
CP-62/30Ring-type Ø 30 mm · 100–200 A
HKSplit-core window · 100–600 A
Downloads
Documentation
Typical applications
Where the EMT430 is used
Energy efficiency and auditsContinuous cloud monitoringRetrofit of existing switchboards
Other models
Contact
Talk directly to the people who design.
No call centre: your request goes to an engineer in our technical department.
- Non-disclosure agreement (NDA) before discussing your project
- EMT and sensor samples for evaluation on request
Phone +39 049 227 4996
Operating office Via Ceresina 11/E, Selvazzano Dentro (PD), Italy