# Kontakt-Simon 75503-39 Thermostat for Heating and Air Conditioning Control

**URL:** https://aio.lv/en/product--kontakt-simon-75503-39--12464270
**Data updated:** 2026-05-18 09:29 (EEST)
**Category:** Control Systems
**Manufacturer:** Kontakt-Simon
**Manufacturer code:** 75503-39
**EAN:** 8421053060667
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 81.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 67.76 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kontakt-simon-75503-39--12464270

## 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

The Kontakt-Simon 75503-39 is a high-quality thermostat mechanism designed for precise control of heating and air conditioning systems. Featuring a temperature range of 5-35°C, this device is built with a durable plastic housing and is rated IP20. It is an essential component for maintaining optimal indoor climate comfort in residential or commercial electrical installations.

## Long description

The Kontakt-Simon 75503-39 is a reliable thermostat mechanism engineered for the precise regulation of heating and air conditioning systems. Designed for integration into residential and commercial electrical installations, this device ensures consistent indoor climate management. Its robust construction and functional design make it a dependable choice for maintaining desired temperature levels within a range of 5 to 35 degrees Celsius.
Advantages
This thermostat offers high precision in temperature control, allowing users to maintain a comfortable environment throughout the year. The device is built with high-quality, durable plastic materials that ensure longevity and consistent performance. Its straightforward design facilitates easy integration into standard electrical wall boxes, providing a clean and professional appearance once installed. The wide operating range makes it versatile enough to handle both heating and cooling requirements effectively.
Suitable for
Residential heating system control
Air conditioning management in offices
Maintaining stable temperatures in commercial spaces
Integration into standard wall-mounted electrical systems
When it may not be suitable
This device is rated IP20, meaning it is not protected against water ingress and should not be installed in bathrooms, kitchens, or areas with high humidity. It is intended for indoor use only and is not suitable for outdoor environments or industrial settings where dust or moisture protection is required.
Key specifications
Temperature control range: 5-35°C
Housing material: Durable plastic
Ingress protection rating: IP20
Weight: 105 g
Quantity: 1 piece
How to use
The thermostat mechanism should be installed by a qualified professional in accordance with local electrical regulations. Once mounted in the wall box, the temperature can be adjusted using the integrated control interface. Ensure the device is placed away from direct heat sources or drafts to allow for accurate ambient temperature sensing. Regular checks can ensure the system continues to operate within the specified parameters.
What to consider before purchase
Verify compatibility with your existing heating or cooling system
Ensure the installation location is dry and protected from moisture
Check that the wall box dimensions are suitable for this mechanism
Usage recommendations
For optimal performance, avoid installing the thermostat in direct sunlight or near appliances that generate significant heat, as this may interfere with the internal temperature sensor and lead to inaccurate climate control.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.105 kg |
| Housing material | Plastic |
| Number of products included | 1 pc(s) |
| International Protection (IP) code | IP20 |

## FAQ

### How much does the Kontakt-Simon 75503-39 Thermostat for Heating and Cooling cost, and is it available for purchase?

The price is 81.99 € (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 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, Installment. All transactions are 100% secure and encrypted.

### Can Kontakt-Simon 75503-39 Thermostat for Heating and Cooling 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 Kontakt-Simon 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 Kontakt-Simon 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 Kontakt-Simon 75503-39 Thermostat for Heating and Cooling?

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/12464270/68767631_large.webp