# Zamel STM-25-40 Modular Installation Contactor 25A 4NO 230V AC

**URL:** https://aio.lv/en/product--zamel-ext10000295--12459993
**Data updated:** 2026-05-18 09:37 (EEST)
**Category:** Power Sockets
**Manufacturer:** ZAMEL
**Manufacturer code:** EXT10000295
**EAN:** 5903669487364
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 25.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 21.07 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--zamel-ext10000295--12459993

## 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-25-40 is a modular installation contactor designed for switching electrical circuits in residential and commercial buildings. It features a 25A rated current, 4 normally open (4NO) contacts, and operates on a 230V AC control voltage. This device is ideal for controlling lighting, heating, and ventilation systems, ensuring reliable performance in standard DIN-rail mounting configurations.

## Long description

The Zamel STM-25-40 is a high-quality modular installation contactor engineered for the reliable switching of electrical circuits in both residential and commercial environments. Designed for seamless integration into standard electrical distribution boards, this device provides a robust solution for managing power distribution with a rated current of 25A. Featuring four normally open (4NO) contacts and operating on a 230V AC control voltage, it ensures consistent performance for various automated electrical systems.
Advantages
This modular contactor stands out due to its compact design, which allows for efficient space utilization on standard DIN-rail mounting systems. The construction emphasizes durability and operational safety, making it a dependable choice for long-term electrical installations. Its silent operation and high switching capacity contribute to a stable electrical infrastructure, reducing the need for frequent maintenance while providing precise control over connected loads.
Suitable for
Controlling lighting systems in buildings
Managing heating and ventilation equipment
Switching electrical circuits in residential homes
Commercial electrical distribution panels
This device may not be suitable for applications requiring high-frequency switching or environments with extreme industrial vibrations. It is also not intended for use in circuits exceeding its 25A rated current capacity or in non-standard voltage environments outside of the specified 230V AC range.
Key specifications
Rated current: 25A
Contact configuration: 4 normally open (4NO)
Control voltage: 230V AC
Mounting type: DIN-rail
Application: Modular installation
The installation of the Zamel STM-25-40 should be performed by a qualified electrician in accordance with local safety regulations. The device is designed to be snapped onto a standard DIN-rail within an electrical enclosure. Ensure that the control circuit is correctly wired to the coil terminals and that the load circuits are connected to the corresponding power terminals, verifying all connections are secure before energizing the system.
What to consider before purchase
Verify that the 25A rated current is sufficient for your specific load requirements
Ensure the 230V AC control voltage matches your existing control system
Confirm available space on your DIN-rail for modular mounting
Check that the 4NO contact configuration meets your circuit switching needs
For optimal performance and longevity, ensure the contactor is installed in a well-ventilated enclosure to prevent overheating. Regularly inspect the terminal connections for tightness during routine maintenance to maintain electrical integrity.

## FAQ

### How much does the Zamel STM-25-40 Modular Installation Contactor 25A cost, and is it available for purchase?

The price is 25.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 53 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/12459993/68761977_large.webp