# Lumel LCTB 452140 Current Transformer 200/5A Class 0.5 with Busbar Opening

**URL:** https://aio.lv/en/product--lumel-0001-00017-20819--12463688
**Data updated:** 2026-05-18 09:43 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** Lumel
**Manufacturer code:** 0001-00017-20819
**EAN:** 5901769494428
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 27.49 €
**Prices and availability valid until:** 2026-08-07 23:59
**Price without VAT (21%):** 22.72 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lumel-0001-00017-20819--12463688

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 28.07.2026 | free |
| Pickup points | 31.07.2026 | 1.89 EUR |
| Courier delivery to door | 31.07.2026 | 4.99 EUR |

## Summary description

The Lumel LCTB 452140 is a high-precision current transformer designed for industrial electrical measurement systems. It features a 200/5A transformation ratio and meets class 0.5 accuracy standards. Equipped with a dedicated busbar opening, this device is ideal for reliable current monitoring and integration into power distribution panels. Its robust construction ensures consistent performance in demanding electrical environments.

## Long description

The Lumel LCTB 452140 is a high-precision current transformer engineered for accurate current measurement in industrial electrical systems. This device facilitates the conversion of high primary currents into manageable secondary currents, ensuring precise monitoring and protection within power distribution networks. Its robust design and reliable performance make it a standard choice for professionals requiring stable data acquisition in demanding electrical environments.
Advantages
This current transformer offers exceptional measurement accuracy, adhering to class 0.5 standards, which ensures minimal deviation in data readings. The integrated busbar opening simplifies the installation process, allowing for efficient mounting directly onto existing power infrastructure without the need for complex wiring modifications. Its durable construction provides long-term operational stability, reducing the need for frequent maintenance or replacement in industrial settings.
Suitable for
Industrial power distribution panels
Electrical energy monitoring systems
Current measurement in low-voltage networks
Integration with power meters and protection relays
When it may not be suitable
This device is specifically designed for low-voltage applications and should not be used in high-voltage power grids. It is also not intended for environments where the primary current exceeds the specified transformation ratio, as this could lead to inaccurate readings or damage to the transformer.
Key specifications
Transformation ratio: 200/5A
Accuracy class: 0.5
Busbar opening dimensions: 45x21 mm
Application: Low-voltage electrical systems
How to use
Installation should be performed by qualified electrical personnel. The primary conductor is passed through the busbar opening of the transformer. The secondary terminals are then connected to the measuring instrument or protection device using appropriate wiring. Ensure that all connections are secure and that the polarity is correctly observed to maintain measurement accuracy.
What to consider before purchase
Verify that the transformation ratio matches your system requirements
Check the physical dimensions of your busbar against the transformer opening
Ensure the accuracy class meets your specific monitoring needs
Usage recommendations
Always ensure that the secondary circuit is connected to a load or short-circuited before energizing the primary conductor to prevent dangerous voltage build-up.

## FAQ

### How much does the Lumel LCTB 452140 Current Transformer 200/5A cost, and is it available for purchase?

The price is 27.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 28.07.2026 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 Lumel 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 Lumel 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/12463688/68765412_large.webp