# LCTB 5021300050A51 Current Transformer with Busbar Opening 50A/5A Class 1.3

**URL:** https://aio.lv/en/product--no-name-lctb-5021300050a51--12453887
**Data updated:** 2026-05-18 02:43 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** No name
**Manufacturer code:** LCTB 5021300050A51
**EAN:** 5901769464506
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 30.49 €
**Prices and availability valid until:** 2026-08-03 23:59
**Price without VAT (21%):** 25.20 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--no-name-lctb-5021300050a51--12453887

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

The LCTB 5021300050A51 is a high-precision current transformer designed for electrical measurement systems. Featuring a busbar opening, it provides a transformation ratio of 50A/5A with an accuracy class of 1.3. This device is ideal for monitoring current in industrial and commercial power distribution networks, ensuring reliable signal conversion for metering and protection equipment.

## Long description

The LCTB 5021300050A51 current transformer is a precision-engineered device designed for accurate current measurement in electrical systems. Featuring a dedicated busbar opening, this transformer facilitates easy installation within power distribution networks. It provides a transformation ratio of 50A/5A and operates with an accuracy class of 1.3, ensuring reliable signal conversion for various metering and protection applications in industrial and commercial environments.
Advantages
This current transformer offers high reliability and consistent performance in demanding electrical environments. Its design allows for seamless integration with existing busbar systems, reducing installation time and complexity. The robust construction ensures long-term stability, while the precise transformation ratio provides accurate data for monitoring equipment, which is essential for maintaining system efficiency and safety.
Suitable for
Industrial power distribution networks
Commercial electrical metering systems
Current monitoring for protection relays
Energy management and sub-metering applications
When it may not be suitable
This device is not intended for high-voltage transmission lines or applications requiring a different transformation ratio or higher accuracy classes. It is specifically designed for low-voltage busbar systems and may not be compatible with cables or conductors that exceed the physical dimensions of the busbar opening.
Key specifications
Transformation ratio: 50A/5A
Accuracy class: 1.3
Mounting type: Busbar opening
Application: Current measurement and protection
How to use
To install the current transformer, ensure the power supply to the busbar is disconnected. Pass the primary conductor through the busbar opening of the transformer. Secure the device firmly to prevent movement. Connect the secondary terminals to your metering or protection equipment using appropriate wiring, ensuring that the polarity is observed correctly. Once installed, verify the connections before restoring power to the system.
What to consider before purchase
Verify the current rating of your system matches the 50A input requirement.
Check the physical dimensions of your busbar to ensure it fits through the opening.
Confirm that the accuracy class 1.3 meets the requirements of your specific metering or protection equipment.
Usage recommendations
Always ensure that the secondary circuit of the current transformer is connected to a load or short-circuited before energizing the primary conductor to prevent high voltage buildup.

## FAQ

### How much does the LCTB 5021300050A51 Current Transformer 50A/5A cost, and is it available for purchase?

The price is 30.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 16 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 23.07.2026 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 No name 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 No name 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/12453887/68756412_large.webp