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header-product Energy cost meter AC Shelly Pro 3EM-400A 400 A 50-60 Hz
325.49 €

Energy cost meter AC Shelly Pro 3EM-400A 400 A 50-60 Hz

Energy cost meter AC Shelly Pro 3EM-400A Photo 1
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Energy cost meter AC Shelly Pro 3EM-400A 400 A 50-60 Hz

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Energy cost meter AC Shelly Pro 3EM-400A 400 A 50-60 Hz

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Short description

The Shelly Pro 3EM-400A is an AC energy cost meter designed for monitoring energy consumption. It supports a maximum current of 400 A and operates within a frequency range of 50 to 60 Hz. With compact dimensions of 19 mm width, 69 mm depth, and 94 mm height, it is suitable for various installations. This meter provides accurate readings to help manage energy costs effectively.
Available at price 325.49 €: 144 pcs.
Total available for order: 444 pcs.
Warranty: 2 Years
SKU: 10490258
Manufacturer: Shelly
free shipment

Cheapest delivery:

Venipak Pickup LV, Venipak Locker LV

Pick-up points

Venipak Pickup LV

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
31.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
05.08.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.06 kg)
Parcel couriers
Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
05.08.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
payment
Payment Methods:
Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay
Available for private customers at price 334.49 €: 300 pcs.
Together cheaper
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Product information

Description

Shelly Pro 3EM-400 is a DIN-rail mountable three-phase energy meter with Wi‑Fi, Bluetooth and LAN connectivity. It reports accumulated active energy as well as instantaneous voltage, current and power factor per phase in real time. The device offers 1% active energy measurement accuracy, 60 days of on-device historical data with 1‑minute resolution per phase, and scripting capabilities for advanced monitoring and automation. Its compact form factor (19 mm width, 69 mm depth, 94 mm height) and 400 A maximum current rating make it suitable for residential and small commercial installations.

Advantages

The Shelly Pro 3EM-400 provides precise three-phase monitoring with 1% accuracy for active energy and real-time per-phase measurements of voltage, current and power factor. Built-in Wi‑Fi, Bluetooth and LAN connectivity enable flexible integration into local networks and professional systems. On-device historical storage for up to 60 days with 1‑minute granularity and scripting support allow detailed analysis and customized automation without immediate cloud dependency. DIN-rail form factor and compact dimensions simplify installation inside distribution boards.

Suitable for

  • Monitoring household energy consumption and individual appliances
  • Measuring electrical circuits in small businesses and offices
  • Integration into professional automation and energy management systems
  • Retrofit installations inside DIN-rail electrical panels

Key specifications

  • Model: Shelly Pro 3EM-400 (MPN 217050, EAN 3800235268117)
  • Type: Three-phase AC energy meter, DIN-rail mountable
  • Max current: 400 A
  • Frequency: 50–60 Hz
  • Measurement accuracy: 1% (active energy)
  • Connectivity: Wi‑Fi, Bluetooth, LAN
  • Historical data: Up to 60 days on-device, 1-minute resolution per phase
  • Dimensions: 19 mm (W) × 69 mm (D) × 94 mm (H)
  • Weight: 0.062 kg

How to use

Install the Shelly Pro 3EM-400 on a standard DIN rail inside the distribution board and connect the three-phase conductors following local electrical regulations and the product wiring diagram. Connect the device to the local network via Wi‑Fi or LAN for remote monitoring and configuration, or use Bluetooth for initial setup. Use the Shelly management interface to view real-time readings, review historical data, configure scripts and set up integrations with home automation or energy management platforms.

Usage recommendations

Follow applicable national and local electrical codes when installing and wiring the meter. Ensure connections are made by a qualified electrician and verify the device is rated for the installation's maximum current. Regularly back up any required historical data if long-term storage is needed beyond the on-device 60-day period.

Specifications

Weight:
0.062 kg
All features
Flash memory:
16 MB
Operating relative humidity (H-H):
30 - 70
Material:
Plastic
Operating temperature (T-T):
-20 - 40
Bluetooth version:
4.2
Ethernet LAN:
Yes
Wall mountable:
Yes
Bluetooth:
Yes
Maximum current:
400 A
Wi-Fi:
Yes
Maximum power:
3 W
Frequency range:
50 - 60
Accuracy:
1 %
Maximum operating altitude:
2000 m
Power source type:
AC
DIN rail mounting:
Yes
Cable section:
0.5 - 2.5
Temperature sensor:
Yes
Microcontroller model:
ESP32-D0WDQ6
Top Wi-Fi standard:
Wi-Fi 4 (802.11n)
Maximum tightening torque:
0.4 N⋅m
Wi-Fi range:
50 m
Webhooks (URL actions):
Yes
Stripped wire length:
6 - 7
Voltmeter (RMS for each phase):
100 - 260
Ammeter accuracy:
1 - 2

Weight & dimensions

Weight:
0.062 kg
Height:
94 mm
Width:
19 mm
Depth:
69 mm

Description

Machine translation. Load original

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Stock data
Warehouse Stock Delivery to the store Store Price
WH94 300 17.07.2026 Best delivery 334.49 €
Available only for legal entities
Warehouse Stock Delivery to the store Store Price
WH109 144 31.07.2026 325.49 €
334.49 €
Stock: 300
Delivery Date: 17.07.2026 Best delivery
Warehouse: WH94
Available only for legal entities
325.49 €
Stock: 144
Delivery Date: 31.07.2026
Warehouse: WH109

Customer reviews

Customer questions

FAQ

How much does the Energy cost meter AC Shelly Pro 3EM-400A cost, and is it available for purchase?

The price is 325.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 444 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 31.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All Shelly products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Shelly service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
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Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.