# Lumel LCTB 5030 Current Transformer, 150A/5A, Busbar Aperture 50x30 mm

**URL:** https://aio.lv/en/product--lumel-lctb-5030300150a55--12459270
**Data updated:** 2026-05-18 09:28 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** Lumel
**Manufacturer code:** LCTB 5030300150A55
**EAN:** 5901769490178
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 28.49 €
**Prices and availability valid until:** 2026-08-04 23:59
**Price without VAT (21%):** 23.55 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lumel-lctb-5030300150a55--12459270

## 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 Lumel LCTB 5030 current transformer is designed for precise current measurement in electrical systems. Featuring a 150A/5A transformation ratio and a 50x30 mm busbar aperture, this device ensures reliable signal conversion for monitoring and protection equipment. It is suitable for industrial power distribution applications, providing accurate performance and easy installation on busbars.

## Long description

The Lumel LCTB 5030 current transformer is a high-precision device engineered for the accurate measurement of electrical currents in industrial power distribution systems. With a transformation ratio of 150A/5A and a dedicated busbar aperture of 50x30 mm, this transformer facilitates the reliable conversion of high primary currents into manageable secondary signals suitable for monitoring, metering, and protection equipment.
Advantages
This current transformer offers exceptional reliability and consistent performance in demanding electrical environments. Its robust construction ensures long-term stability, while the standardized design allows for seamless integration into existing power infrastructure. The device is specifically optimized for easy mounting on busbars, which significantly reduces installation time and complexity for technical personnel. By providing precise signal transformation, it enhances the overall accuracy of energy management systems and safety relays.
Suitable for
Industrial power distribution networks
Electrical energy metering systems
Protection and monitoring relays
Substation current measurement
This device may not be suitable for applications requiring high-frequency current measurement or for environments where the primary conductor dimensions exceed the 50x30 mm aperture limit. It is also not intended for use in high-voltage transmission lines beyond its specified insulation class.
Key specifications
Transformation ratio: 150A/5A
Busbar aperture dimensions: 50x30 mm
Mounting type: Busbar mount
Application: Current measurement and signal conversion
To use the Lumel LCTB 5030, ensure the power supply is disconnected before installation. Slide the primary busbar through the 50x30 mm aperture and secure the transformer firmly in place. Connect the secondary terminals to your measuring or protection device using appropriate wiring, ensuring that the polarity is correctly observed to maintain measurement accuracy.
What to consider before purchase
Verify that the primary current does not exceed 150A
Ensure the busbar dimensions fit within the 50x30 mm opening
Confirm compatibility with your secondary measurement equipment
Check the environmental conditions of the installation site
For optimal performance, ensure all secondary connections are tightened securely and protected from vibration. Regularly inspect the transformer for signs of physical damage or loose wiring to maintain system integrity.

## FAQ

### How much does the Lumel LCTB 5030 Current Transformer 150A/5A cost, and is it available for purchase?

The price is 28.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 47 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 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/12459270/68761353_large.webp