# Zamel STM-25-20/S Modular Installation Contactor, 25A, 2xNO, 230V AC, Manual Control

**URL:** https://aio.lv/en/product--zamel-ext10000287--12458775
**Data updated:** 2026-05-18 09:28 (EEST)
**Category:** Power Sockets
**Manufacturer:** ZAMEL
**Manufacturer code:** EXT10000287
**EAN:** 5903669487289
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 25.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 21.48 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--zamel-ext10000287--12458775

## 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-25-20/S is a modular installation contactor designed for reliable switching of electrical circuits. It features a 25A current rating, 2xNO (normally open) contacts, and operates on 230V AC. Equipped with manual control functionality, this device is ideal for industrial and residential electrical installations, providing efficient control of lighting, heating, and ventilation systems in a compact DIN-rail mountable format.

## Long description

The Zamel STM-25-20/S is a high-quality modular installation contactor engineered for the reliable switching of electrical circuits in both residential and industrial environments. This device is designed to handle a rated current of 25A and features two normally open (NO) contacts, operating efficiently on a 230V AC supply. Its compact design allows for seamless integration into standard distribution boards via DIN-rail mounting, while the integrated manual control switch provides users with the flexibility to override automatic operations when necessary.
Advantages
This contactor stands out due to its robust construction and versatility in managing various electrical loads. The inclusion of manual control functionality allows for easy testing or emergency operation without needing to rely on the control signal. Its modular design ensures compatibility with standard electrical enclosures, saving valuable space in the switchboard. Furthermore, the device is built to ensure long-term operational stability, making it a dependable choice for demanding electrical infrastructure.
Suitable for
Lighting control systems in commercial and residential buildings
Heating and ventilation (HVAC) equipment management
Industrial automation and control circuits
Switching of single-phase electrical loads
This contactor may not be suitable for applications requiring high-frequency switching beyond its rated mechanical and electrical endurance. It is also not intended for use in environments with extreme moisture, dust, or corrosive gases unless housed in an appropriately rated protective enclosure.
Key specifications
Rated current: 25A
Contact configuration: 2xNO (Normally Open)
Control voltage: 230V AC
Mounting type: DIN-rail (TH35)
Manual control: Integrated switch
To use the Zamel STM-25-20/S, mount the device onto a standard 35mm DIN rail within your electrical distribution board. Connect the power supply lines to the main terminals and the control circuit wires to the coil terminals according to the wiring diagram provided on the device housing. Once installed, the manual control lever can be used to toggle the contactor state manually for maintenance or testing purposes.
What to consider before purchase
Ensure the rated current of 25A is sufficient for your specific load requirements.
Verify that your control circuit provides a 230V AC signal.
Check the available space on your DIN rail to accommodate the modular width of the device.
Usage recommendations
For optimal performance and safety, ensure all electrical connections are tightened to the manufacturer's specified torque. Regularly inspect the device for signs of wear or overheating, especially in high-duty cycle applications.

## FAQ

### How much does the Zamel STM-25-20/S Modular Installation Contactor cost, and is it available for purchase?

The price is 25.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 26 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/12458775/68760891_large.webp