# Zamel STM-25-04 Modular Installation Contactor 25A 4NO 230V AC

**URL:** https://aio.lv/en/product--zamel-ext10000294--12453456
**Data updated:** 2026-05-18 02:52 (EEST)
**Category:** Power Sockets
**Manufacturer:** ZAMEL
**Manufacturer code:** EXT10000294
**EAN:** 5903669487357
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 33.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 27.68 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--zamel-ext10000294--12453456

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The Zamel STM-25-04 is a modular installation contactor designed for reliable switching of electrical circuits. It features a 25A rated current, 4 normally open (NO) contacts, and operates on a 230V AC control voltage. Ideal for residential and commercial electrical distribution boards, this device ensures efficient control of lighting, heating, and ventilation systems in DIN-rail mounted installations.

## Long description

The Zamel STM-25-04 is a high-quality modular installation contactor engineered for the reliable switching of electrical circuits in various environments. Designed for mounting on standard DIN rails, this device provides a robust solution for managing power distribution in both residential and commercial electrical systems. With a rated current of 25A and four normally open contacts, it offers consistent performance for demanding electrical control tasks.
Advantages
This contactor stands out due to its compact modular design, which allows for seamless integration into standard distribution boards alongside other DIN-rail components. Its construction ensures high operational reliability and longevity, making it an excellent choice for systems requiring frequent switching. The device is optimized for quiet operation and efficient energy management, contributing to the overall stability of the electrical installation.
Suitable for
Lighting control systems in commercial buildings
Heating and ventilation equipment management
Industrial automation and control panels
Residential electrical distribution boards
When it may not be suitable
This device is not intended for use in circuits exceeding its 25A rated current capacity or for applications requiring a different contact configuration, such as normally closed contacts. It is also not suitable for environments with extreme moisture or dust levels unless housed in an appropriate protective enclosure.
Key specifications
Rated current: 25A
Contact configuration: 4 normally open (4NO)
Control voltage: 230V AC
Mounting type: DIN rail
Modular design for standard distribution boards
How to use
The Zamel STM-25-04 should be installed by a qualified professional in accordance with local electrical regulations. The device snaps onto a standard DIN rail within the distribution board. Connect the control circuit to the coil terminals and the load circuit to the corresponding power terminals. Ensure all connections are tightened securely to prevent overheating and verify the voltage compatibility before energizing the system.
What to consider before purchase
Verify that the 25A current rating is sufficient for your specific load requirements.
Ensure the 230V AC control voltage matches your existing control system.
Check the available space on your DIN rail to accommodate the modular width.
Confirm that a 4NO contact configuration meets your circuit switching needs.
Usage recommendations
Regularly inspect the contactor for any signs of wear or loose connections during routine maintenance of the electrical panel. Ensure the operating environment remains within the specified temperature ranges to maintain optimal performance and safety.

## FAQ

### How much does the Zamel STM-25-04 Modular Installation Contactor 25A cost, and is it available for purchase?

The price is 33.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 06.07.2026 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/12453456/68755998_large.webp