# Current Transformer Shelly 50A Black — split-core CT for 50 A measurement

**URL:** https://aio.lv/en/product--shelly-120137--5320174
**Data updated:** 2026-03-20 09:45 (EET)
**Category:** Smart Sensors
**Manufacturer:** Shelly
**Manufacturer code:** 120137
**EAN:** 3800235262207
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 49.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 40.90 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--shelly-120137--5320174

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

Shelly 50A current transformer is a split-core CT designed for measuring alternating current up to a nominal 50 A. Finished in black, it provides a nominal current output suitable for integration with monitoring or energy measurement systems. Use it for load monitoring, energy metering, and circuit monitoring in residential and light commercial installations.

## Long description

The Shelly 50A Black split-core current transformer is designed to measure alternating current up to a nominal 50 A. Finished in black, the CT provides a proportional secondary output suitable for integration with energy monitoring devices and data loggers. Its split-core design allows for quick installation around an existing conductor without disconnecting wiring, making it convenient for retrofit and new installations in residential and light commercial electrical systems.
Advantages
The split-core construction enables tool-free clamping around live conductors for fast, low-disruption installation. The transformer gives a stable proportional output for accurate current sensing when paired with compatible monitoring equipment. Compact dimensions and durable housing provide space-saving mounting and protection against everyday mechanical stress. The black finish blends unobtrusively with electrical panels and wiring runs.
Suitable for
 Monitoring individual circuit loads in homes and small businesses
 Integration with energy meters, data loggers, and smart energy controllers
 Load profiling and preventive maintenance checks
 Retrofit installations where conductor disconnection is impractical
Key specifications
 Nominal primary current: up to 50 A (AC)
 Split-core design for clamp-on installation
 Secondary output: proportional to primary current (for connection to compatible monitoring devices)
 Housing color: black
 Compact form factor suitable for panel or DIN-rail adjacent placement
 Intended for single-conductor measurement
How to use
Open the split-core CT and place it around a single live conductor; ensure it fully closes and the core latches securely. Connect the secondary output leads to the input terminals of the monitoring device or meter according to that device's wiring and polarity requirements. Verify that the monitoring equipment is configured for a 50 A primary range or the appropriate transformation ratio to display correct current or power values. After installation, check connections and readings for consistency before leaving the system in continuous operation.
Usage recommendations
Use the CT only on single conductors (not on multi-core cables) and within its rated primary current. Ensure the secondary is never left open-circuited while the primary is energized. Match the CT output to compatible input impedance and scaling settings of the monitoring device for accurate measurements.

## Specifications

| Feature | Value |
|---|---|
| Nominal current output | 50 A |

### Features

| Feature | Value |
|---|---|
| Product colour | Black |

## FAQ

### How much does the Shelly 50A Current Transformer cost, and is it available for purchase?

The price is 49.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 155 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 01.07.2026 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: 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. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/5320174/65817229_large.webp