# Relpol Thermal Overload Relay LR2K0304, 0.36A-0.54A

**URL:** https://aio.lv/en/product--relpol-lr2k0304--12463411
**Data updated:** 2026-05-18 09:41 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** Relpol
**Manufacturer code:** LR2K0304
**EAN:** 3389110230383
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 55.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 46.27 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--relpol-lr2k0304--12463411

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The Relpol LR2K0304 is a thermal overload relay designed for motor protection against overloads and phase failures. It features an adjustable current range of 0.36A to 0.54A, ensuring reliable operation in industrial control circuits. This compact device is essential for preventing electrical damage to motors, offering precise protection and long-term durability in various automation applications.

## Long description

The Relpol Thermal Overload Relay LR2K0304 is a specialized protective device engineered to safeguard electric motors from damage caused by overloads and phase failures. Designed for integration into industrial control circuits, this relay provides precise monitoring of current flow within the 0.36A to 0.54A range. Its compact construction allows for efficient space utilization in control panels, ensuring that motor systems remain operational and protected against electrical faults that could lead to overheating or mechanical failure.
Advantages
This thermal overload relay offers high reliability in demanding industrial environments by providing accurate thermal protection. The adjustable current setting allows for fine-tuned calibration to match the specific requirements of the connected motor, ensuring optimal performance and safety. Its robust design contributes to the longevity of motor equipment by preventing damage during abnormal operating conditions, thereby reducing maintenance needs and downtime in automated systems.
Suitable for
Protection of small electric motors in industrial automation
Integration into motor starter assemblies
Control circuits requiring precise thermal monitoring
Applications prone to potential phase loss or overload conditions
When it may not be suitable
This device is not intended for use with motors exceeding the specified current range of 0.36A to 0.54A. It is also not suitable for applications requiring protection against short-circuit currents, as it is designed specifically for thermal overload and phase failure protection rather than instantaneous fault interruption.
Key specifications
Current adjustment range: 0.36A to 0.54A
Function: Thermal overload and phase failure protection
Application: Industrial motor control circuits
Design: Compact modular form factor
How to use
The relay is typically mounted directly onto a compatible contactor. Once installed, the current setting should be adjusted using the integrated dial to match the full-load current rating of the motor being protected. Ensure all electrical connections are tightened according to the manufacturer's torque specifications to prevent overheating at the terminals. The device should be tested periodically to ensure the trip mechanism functions correctly under simulated conditions.
What to consider before purchase
Verify the full-load current rating of your motor falls within the 0.36A to 0.54A range
Ensure compatibility with your existing contactor model
Confirm the environmental conditions of the installation site are within the device's operating limits
Usage recommendations
Always disconnect the power supply before installing or adjusting the relay. Ensure that the relay is properly calibrated to the motor's nominal current to avoid nuisance tripping or inadequate protection.

## FAQ

### How much does the Relpol LR2K0304 Thermal Overload Relay cost, and is it available for purchase?

The price is 55.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 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 06.07.2026 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

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