# Relpol RLK-3K 3-Phase Modular LED Indicator Light 400V AC Red Yellow Green

**URL:** https://aio.lv/en/product--relpol-863028--12470690
**Data updated:** 2026-05-18 09:35 (EEST)
**Category:** Power Sockets
**Manufacturer:** Relpol
**Manufacturer code:** 863028
**EAN:** 5900005228780
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 12.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--relpol-863028--12470690

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

The Relpol RLK-3K is a 3-phase modular LED indicator designed for 400V AC electrical systems. It features three distinct color indicators—red, yellow, and green—providing clear visual status monitoring for each phase. This compact modular device is intended for DIN rail mounting in distribution boards and control panels, ensuring reliable phase presence indication in industrial and residential electrical installations.

## Long description

The Relpol RLK-3K is a professional 3-phase modular LED indicator designed for reliable monitoring of 400V AC electrical systems. This device provides immediate visual feedback on the status of each phase through three distinct LED lights in red, yellow, and green. Engineered for seamless integration into standard electrical infrastructure, it is housed in a compact modular casing suitable for DIN rail mounting, making it an essential component for modern distribution boards and industrial control panels.
Advantages
The primary benefit of the Relpol RLK-3K is its ability to provide real-time phase monitoring, which is critical for maintaining the safety and efficiency of electrical installations. By utilizing energy-efficient LED technology, the indicator ensures long-lasting performance with minimal power consumption and low heat emission. Its modular design allows for quick and easy installation on standard DIN rails, saving valuable space in electrical cabinets while providing a clear, high-visibility status display that can be easily read even in low-light environments.
Suitable for
Monitoring phase presence in 400V AC industrial distribution boards
Visual status indication in residential electrical control panels
Electrical maintenance and diagnostic systems
Automation and control cabinets requiring phase monitoring
When it may not be suitable
This device is specifically designed for 400V AC systems and should not be used in DC circuits or systems with voltage levels outside the specified range. It is not intended for outdoor use unless installed within a suitable IP-rated protective enclosure.
Key specifications
Voltage rating: 400V AC
Indicator type: LED
Colors: Red, Yellow, Green
Mounting type: DIN rail
Phase configuration: 3-phase
How to use
The Relpol RLK-3K should be installed by a qualified professional in accordance with local electrical regulations. Mount the device onto a standard 35mm DIN rail within the distribution board. Connect the three phases of the 400V AC supply to the corresponding input terminals on the device. Once powered, the LEDs will illuminate to indicate the presence of voltage on each respective phase. Ensure all connections are tightened securely to prevent loose contacts.
What to consider before purchase
Verify that your electrical system operates at 400V AC
Ensure there is sufficient space on the DIN rail within your enclosure
Confirm that the installation environment meets the required safety standards
Usage recommendations
For optimal longevity and safety, ensure the device is protected from excessive moisture, dust, and extreme temperatures. Regularly inspect the indicator lights during routine maintenance to confirm all phases are functioning correctly.

## FAQ

### How much does the Relpol RLK-3K 3-Phase LED Indicator 400V AC cost, and is it available for purchase?

The price is 15.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 72 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 03.07.2026 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 Relpol 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 Relpol 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/12470690/68773262_large.webp