# Zamel STM-25-31/24V Modular Installation Contactor 25A 3NO+1NC 24V AC/DC

**URL:** https://aio.lv/en/product--zamel-ext10000293--12453446
**Data updated:** 2026-05-18 02:52 (EEST)
**Category:** Power Sockets
**Manufacturer:** ZAMEL
**Manufacturer code:** EXT10000293
**EAN:** 5903669487340
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 29.99 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 24.79 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--zamel-ext10000293--12453446

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

The Zamel STM-25-31/24V is a modular installation contactor designed for reliable switching of electrical circuits. It features a 25A rated current and a 3NO+1NC contact configuration, operating on 24V AC/DC. Ideal for industrial and residential electrical distribution systems, this device ensures efficient control of lighting, heating, and ventilation equipment in modular enclosures.

## Long description

The Zamel STM-25-31/24V modular installation contactor is a high-performance electrical component engineered for the reliable switching of power circuits in various environments. Designed for seamless integration into modular distribution boards, this device provides robust control for electrical loads, ensuring safety and efficiency in both residential and industrial installations. With its 25A rated current and versatile 3NO+1NC contact configuration, it serves as a dependable solution for managing complex electrical systems.
Advantages
This contactor stands out due to its compact modular design, which allows for easy installation on standard DIN rails within electrical cabinets. The device is built for durability and consistent performance, minimizing maintenance requirements in demanding applications. Its compatibility with both AC and DC control voltages provides significant flexibility for system designers and electricians, while the silent operation ensures it can be used in residential settings without causing noise disturbances.
Suitable for
Control of lighting systems in commercial and residential buildings
Management of heating and ventilation equipment
Switching of electrical circuits in modular distribution boards
Industrial automation and control panel applications
When it may not be suitable
This device is not intended for use in environments with extreme moisture, high levels of dust, or corrosive gases, as these conditions may damage the internal components. It is also not suitable for applications requiring a rated current higher than 25A or for switching circuits that exceed its specified voltage limits.
Key specifications
Rated current: 25A
Contact configuration: 3 normally open (NO) and 1 normally closed (NC)
Control voltage: 24V AC/DC
Mounting type: DIN rail
Design: Modular installation
How to use
The contactor should be installed by a qualified professional in a standard modular enclosure. Mount the device onto a 35mm DIN rail and ensure all electrical connections are tightened according to the specified torque requirements. Connect the control circuit to the coil terminals and the load circuit to the main power terminals, ensuring that the voltage and current ratings are strictly observed during the wiring process.
What to consider before purchase
Ensure the control voltage of your system matches the 24V AC/DC requirement of the contactor.
Verify that the total load current does not exceed the 25A rating.
Check the available space in your distribution board to accommodate the modular width.
Confirm the contact configuration (3NO+1NC) meets the specific requirements of your electrical circuit.
Usage recommendations
Always disconnect the power supply before performing any installation or maintenance work on the electrical system to ensure operator safety. Regularly inspect the connections to ensure they remain secure over time.

## FAQ

### How much does the Zamel STM-25-31/24V Modular Installation Contactor cost, and is it available for purchase?

The price is 29.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 03.07.2026 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 ZAMEL 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 ZAMEL 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

https://aio.lv/img/cache/product/12453446/68755988_large.webp