# Thermal Overload Relay Schneider Electric LRD21, coil voltage 690 V, multicolour, 124 g

**URL:** https://aio.lv/en/product--schneider-electric-lrd21--12113180
**Data updated:** 2026-03-20 10:05 (EET)
**Category:** Computer Component Accessories
**Manufacturer:** Schneider Electric
**Manufacturer code:** LRD21
**EAN:** 3389110346831
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 50.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 42.14 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--schneider-electric-lrd21--12113180

## 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

Schneider Electric LRD21 is a thermal overload relay designed to protect motors and circuits from overload conditions. Specified coil voltage is 690 V and the unit is supplied in a multicolour finish; weight is 124 g. The relay provides reliable overload detection and is suitable for integration into motor control and protection panels in industrial and commercial installations.

## Long description

Schneider Electric LRD21 is a thermal overload relay designed to detect and interrupt motor overload conditions. With a specified coil voltage of 690 V and a compact, multicolour enclosure, the unit provides thermal protection suitable for integration into motor starters and control panels in industrial and commercial installations. The relay's lightweight construction (124 g) and standard form factor make it straightforward to mount alongside contactors and other control equipment.
Advantages
The LRD21 offers reliable thermal sensing to protect motors from sustained overloads and potential damage. Its design supports straightforward installation in existing motor control assemblies and ensures consistent performance at the specified coil voltage. The compact size and low weight reduce space and mounting requirements while the multicolour finish helps with visual identification during wiring and maintenance.
Suitable for
Protection of small to medium AC motors in industrial control panels
Integration with motor starters and contactor assemblies
Commercial HVAC and pump motor protection
Retrofit and replacement of compatible thermal overload relays
Key specifications
Function: thermal overload protection for motors
Rated coil voltage: 690 V
Finish: multicolour housing
Weight: 124 g
Mounting: panel or contactor-adjacent installation (standard relay form factor)
How to use
Install the relay according to the motor starter and control panel manufacturer's instructions, ensuring correct electrical isolation before wiring. Mount the LRD21 adjacent to the contactor or in the designated relay slot, connect the supply and motor conductors to the appropriate terminals, and set any adjustable current or trip settings if applicable. Verify that the coil voltage matches the control circuit rated 690 V and perform functional tests to confirm correct tripping behavior under simulated overload conditions.
Usage recommendations
Confirm compatibility with the motor's full-load current and the control circuit voltage before installation. Use the relay within its rated electrical environment and follow routine maintenance checks, including terminal tightening and visual inspection of the housing to ensure reliable long-term protection.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.124 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 Thermal Overload Relay Schneider Electric LRD21 cost, and is it available for purchase?

The price is 50.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 54 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 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 Thermal Overload Relay Schneider Electric LRD21?

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/12113180/67652662_large.webp