# Lumel LCTR 4514400075A51 Current Transformer with Round Aperture 45/14, 75A/5A

**URL:** https://aio.lv/en/product--lumel-lctr-4514400075a51--12463672
**Data updated:** 2026-05-18 09:43 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** Lumel
**Manufacturer code:** LCTR 4514400075A51
**EAN:** 5901769492738
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 29.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 24.37 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lumel-lctr-4514400075a51--12463672

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The Lumel LCTR 4514400075A51 is a high-precision current transformer designed for electrical measurement systems. Featuring a 45/14 round aperture, it provides a transformation ratio of 75A/5A. This device is engineered for reliable current monitoring and signal conversion in industrial power distribution networks, ensuring accurate data acquisition for energy management and protection applications.

## Long description

The Lumel LCTR 4514400075A51 is a precision-engineered current transformer designed for integration into industrial electrical measurement systems. This device facilitates the accurate monitoring of current levels by converting high primary currents into a manageable secondary signal suitable for standard measuring instruments and protection relays. With its robust construction and reliable performance, it serves as a critical component in power distribution networks, enabling precise energy management and system safety.
Advantages
This current transformer offers exceptional measurement accuracy, ensuring that data acquisition remains consistent even under varying load conditions. Its design prioritizes durability and long-term stability, making it an ideal choice for demanding industrial environments. The compact form factor allows for efficient installation in space-constrained electrical panels, while the high-quality internal components minimize signal distortion and phase error, providing reliable output for downstream monitoring equipment.
Suitable for
Industrial power distribution networks
Energy management and monitoring systems
Protection relay applications
Current signal conversion for measuring instruments
When it may not be suitable
This device is not intended for use in high-voltage transmission lines or applications requiring transformation ratios outside of the specified 75A/5A range. It is also not suitable for environments where the primary conductor dimensions exceed the physical capacity of the 45/14 round aperture.
Key specifications
Transformation ratio: 75A/5A
Aperture type: Round
Aperture size: 45/14 mm
Application: Industrial current measurement
How to use
Installation should be performed by qualified electrical personnel in accordance with local safety regulations. The primary conductor must be passed through the round aperture of the transformer, ensuring a secure fit. The secondary terminals should be connected to the measuring or protection device using appropriate wiring. It is essential to ensure that the secondary circuit is never left open while the primary conductor is energized to prevent the generation of dangerous voltage levels.
What to consider before purchase
Verify that the 75A primary current matches your specific application requirements
Ensure the 45/14 mm aperture is compatible with the diameter of your primary conductor
Confirm the secondary output of 5A is compatible with your existing measurement or protection equipment
Usage recommendations
Always ensure the secondary circuit is properly terminated or short-circuited before energizing the primary conductor to maintain operational safety and device integrity.

## FAQ

### How much does the Lumel LCTR 4514400075A51 Current Transformer 75A/5A cost, and is it available for purchase?

The price is 29.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 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 14.07.2026 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/12463672/68765397_large.webp