CHF183.–
Shelly Pro 3EM 400A
Questions about Shelly Pro 3EM 400A
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Hi, I have measured it:
Width approx. 35mm, height approx. 36mm.
Due to different suppliers and delivery conditions, there may be price differences compared to other suppliers. We always endeavour to offer a price in line with the market. However, this is not possible for all products.
digitec
8 months ago
Yes, with this Shelly energy meter you can measure your rental property supplied on 2 phases, even if the current is limited to 20 or 25 A. The device measures up to 120 A per phase, which is sufficient for your application. It is designed for installation on a top-hat rail and measures the current via the current transformers (clamps) supplied, which are connected to each phase.
How to proceed: You must connect the current transformers to the two phases of your home and mount the device on the top-hat rail. The measurement is then carried out via these current transformers. The device supports 3-phase measurement, but can also be used for 1- or 2-phase applications by connecting only the appropriate current transformers. No special configuration is necessary, but you should make sure that the current transformers are installed correctly and securely. You can then read out and monitor the data via WLAN or LAN.
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The power cables are approx. 60cm long. Extension cables are available (link removed, but the article is called "Extension cable for Shelly Pro 3EM / Pro EM 50A / EM Gen3") but I would be careful with this, as an extension cable always increases the resistance.
digitec
1 year ago
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The neutral conductor clamp is optional and is not included with the Shelly Pro 3EM. You must therefore purchase it separately. The specific type of clamp required is not mentioned in the official instructions, but it should be a neutral clamp with a maximum current load of 120 A that is compatible with the Shelly Pro 3EM. It is advisable to contact the manufacturer or a specialised dealer to confirm the exact specification.
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digitec
1 year ago
The Shelly Pro 3EM requires the current transformer on the neutral conductor if it is necessary to measure the current in the neutral conductor, especially in certain configurations or if the entire energy balance of the house is to be monitored.
- This is particularly relevant if you want to measure the total current across all three phases and at the same time take into account the current in the neutral conductor in order to obtain an accurate energy balance.
- The current transformer for the neutral conductor is connected to a specific connection on the device to enable the measurements.
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digitec
1 year ago
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Yes, the Shelly Pro 3EM-120 is equipped with three current transformers (CTs) to measure the current on each phase. These clamps allow non-contact measurements and are designed to be mounted directly on the phase cables.
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digitec
1 year ago
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The Shelly Pro 3EM-120 is not sold with the clamps (current transformers) included. You must purchase them separately to take current measurements.
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Many thanks for the information! The information has been passed on and will be adapted if necessary.
Due to different suppliers and delivery conditions, there may be price differences compared to other suppliers. We always endeavour to offer a price in line with the market. However, this is not possible for all products.
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I am very satisfied and it works via LAN cable or WLAN with this device.
The app is called Shelly and runs via a free cloud account.
Consumption can be read out in detail, displayed in the app and even exported as an Excel file.
Ideal for your project.
I now have at least 20 different Shelly devices.
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the app accesses the cloud and works from anywhere if the shelly is configured for the cloud.
otherwise access the web gui, either from the same network or with the appropriate router configuration.
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Thank you for the detailed answer.
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Yes, the APP shows the time curve of all power values. The values can also be exported via the web interface (minute resolution). With your own programme, the values can also be read more frequently (Json, hhtp or...).
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Works perfectly with both LAN and WLAN without any problems.
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No, not with a single device. Then one measuring device must be connected to the house connection and one to the inverter.
But then you still have to do the maths. The inverter should actually tell you how much electricity you have produced.
Ideally, it should also show the feed-in. It depends on the device, maybe you can integrate the Shelly into the inverter.
Otherwise, I measure this with the solar manager and a Telsa Powerwall gateway.
These devices talk to each other via LAN using the MQTT protocol.
Technically, I don't think so. However, these are different generations of equipment... I find it more reassuring to have the model that corresponds to the company's new standard.
I don't know if I understand it correctly, but the phase on which the feed-in is connected counts as minus, provided the consumption on the phase is lower.
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Salut ! Environ 60 centimètres :
https://www.shelly.cloud/en...
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