# LS MT-32 21.5A M-SO Thermal Overload Relay 18-25A

**URL:** https://aio.lv/en/product--ls-mt-32-215a-m-so--12447486
**Data updated:** 2026-05-18 02:43 (EEST)
**Category:** Miscellaneous repair tools
**Manufacturer:** LS
**Manufacturer code:** MT-32 21.5A M-SO
**EAN:** 8809254860550
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 36.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 30.16 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ls-mt-32-215a-m-so--12447486

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

The LS MT-32 21.5A M-SO is a reliable thermal overload relay designed for motor protection within an adjustable current range of 18 to 25A. This device effectively prevents motor damage caused by overloads or phase failures. It is an essential component for industrial control systems, ensuring operational safety and longevity of electrical equipment in various automation applications.

## Long description

The LS MT-32 21.5A M-SO is a high-quality thermal overload relay engineered to provide robust protection for electric motors. Operating within an adjustable current range of 18 to 25 amperes, this device is designed to detect and interrupt power in the event of an overload or phase failure, thereby preventing costly damage to motor windings and associated electrical components. Its compact design and reliable switching mechanism make it a standard choice for industrial automation and motor control centers.
Advantages
This thermal overload relay offers exceptional precision in monitoring current flow, ensuring that motors operate within their safe thermal limits. By providing a rapid response to abnormal current conditions, it significantly extends the service life of electrical equipment and reduces the risk of unexpected downtime. The adjustable current dial allows for fine-tuned protection tailored to the specific requirements of the connected motor, while the durable construction ensures consistent performance in demanding industrial environments.
Suitable for
Industrial motor control systems
Automation and manufacturing machinery
HVAC systems and pump control
Conveyor belt motor protection
This device is not suitable for applications requiring protection against short-circuit currents, as it is designed specifically for thermal overload and phase loss scenarios. It should not be used as a primary disconnecting means or in environments where the ambient temperature exceeds the manufacturer's specified operating limits.
Key specifications
Adjustable current range: 18A to 25A
Protection type: Thermal overload and phase failure
Mounting: Direct contactor mounting
Operating environment: Industrial standard
To use the LS MT-32 21.5A M-SO, it should be installed directly onto the corresponding contactor. Once mounted, the current setting dial must be adjusted to match the full-load current rating of the motor being protected. After installation, ensure all terminal connections are tightened securely to prevent overheating. The device features a manual or automatic reset function that can be configured based on the specific operational requirements of the system.
What to consider before purchase
Verify the full-load current rating of your motor falls within the 18-25A range
Ensure compatibility with your existing contactor model
Check the ambient temperature of the installation site
Confirm the need for manual or automatic reset functionality
For optimal performance and safety, always ensure the relay is calibrated correctly to the motor's nameplate current. Regularly inspect the terminal connections for tightness and check the device for signs of wear or environmental contamination to maintain reliable motor protection.

## FAQ

### How much does the LS MT-32 21.5A M-SO Thermal Overload Relay cost, and is it available for purchase?

The price is 36.49 € (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 07.07.2026 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 LS 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 LS 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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