# Schneider Electric LRD340 Thermal Overload Relay 30-40A

**URL:** https://aio.lv/en/product--schneider-electric-lrd340--12453229
**Data updated:** 2026-05-18 02:52 (EEST)
**Category:** Computer Component Accessories
**Manufacturer:** Schneider Electric
**Manufacturer code:** LRD340
**EAN:** 3389119215497
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 172.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 142.97 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--schneider-electric-lrd340--12453229

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

The Schneider Electric LRD340 is a reliable thermal overload relay designed for motor protection. It features an adjustable current range of 30-40A and a coil voltage of 690V. This component is essential for preventing motor damage due to overloads or phase failure in industrial electrical systems. Its robust design ensures long-term operational stability and safety in various electrical control applications.

## Long description

The Schneider Electric LRD340 is a high-performance thermal overload relay engineered to provide reliable protection for electric motors in industrial environments. This device is specifically designed to monitor current levels and disconnect the circuit in the event of an overload or phase failure, thereby preventing costly motor damage and ensuring the longevity of your electrical equipment. With its precise adjustable current range of 30-40A, it offers flexibility for various motor configurations, maintaining operational safety and system stability.
Advantages
The primary benefit of the LRD340 relay is its robust construction, which is built to withstand the rigors of demanding industrial applications. By offering a reliable thermal protection mechanism, it minimizes downtime caused by motor failures. The adjustable setting allows for fine-tuned protection tailored to the specific requirements of the connected motor, while the high insulation voltage rating ensures safe operation within complex electrical control panels.
Suitable for
Industrial motor control systems
Protection against motor overloads
Phase failure detection in electrical circuits
Integration into motor starter assemblies
When it may not be suitable
This relay is not suitable for applications requiring current ranges outside of the 30-40A specification. It is also not designed for use in environments where electronic soft starters or variable frequency drives are already providing integrated motor protection, as this may lead to redundant or conflicting protection settings.
Key specifications
Adjustable current range: 30-40A
Coil voltage: 690V
Weight: 375g
Color: Multicolour
How to use
The LRD340 should be installed by a qualified professional within a control cabinet, typically mounted directly to a contactor. Once installed, the current setting dial should be adjusted to match the full-load current rating of the motor being protected. Ensure all terminal connections are tightened to the manufacturer's torque specifications to prevent overheating. Regular inspections should be performed to verify that the relay is functioning correctly and that no physical damage has occurred to the housing.
What to consider before purchase
Verify that the motor's full-load current falls within the 30-40A range.
Ensure the relay is compatible with your existing contactor model.
Check the available space in your electrical enclosure for mounting.
Usage recommendations
Always ensure the power supply is disconnected before installing or adjusting the relay settings to prevent electrical shock. Periodically test the trip function to confirm the relay remains responsive to overload conditions.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.375 kg |
| Operating temperature (T-T) | -20 - 60 |
| Product colour | Multicolour |
| Remotely operated | No |
| Number of modules | 1 |
| Coil voltage | 690 V |

## FAQ

### How much does the Schneider Electric LRD340 Thermal Overload Relay cost, and is it available for purchase?

The price is 172.99 € (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 13.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Schneider Electric LRD340 Thermal Overload Relay be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Schneider Electric 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 Schneider Electric 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

### Where can I download the instructions for Schneider Electric LRD340 Thermal Overload Relay?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/12453229/68776636_large.webp