# ZAMEL STM-25-20/24V Modular Installation Contactor, 25A, 2NO, 24V DC

**URL:** https://aio.lv/en/product--zamel-ext10000289--12463162
**Data updated:** 2026-05-18 09:44 (EEST)
**Category:** Power Sockets
**Manufacturer:** ZAMEL
**Manufacturer code:** EXT10000289
**EAN:** 5903669487302
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The ZAMEL STM-25-20/24V is a modular installation contactor designed for reliable electrical circuit switching. It features a 25A rated current and 2 normally open (NO) contacts, operating on a 24V DC control voltage. This compact device is suitable for mounting on standard DIN rails in distribution boards, providing efficient control for lighting, heating, and ventilation systems in residential and commercial installations.

## Long description

The ZAMEL STM-25-20/24V is a professional modular installation contactor engineered for the reliable switching of electrical circuits in various environments. With a rated current of 25A and two normally open (NO) contacts, this device is designed to handle demanding electrical loads efficiently. It operates on a 24V DC control voltage, making it a versatile component for modern automation and power distribution systems.
Advantages
This contactor offers high operational reliability and durability, ensuring consistent performance in residential and commercial electrical installations. Its compact modular design allows for seamless integration into standard distribution boards, saving valuable space. The device is built to withstand frequent switching operations, providing a stable solution for controlling high-power circuits while maintaining safety and efficiency standards.
Suitable for
Lighting control systems
Heating and ventilation equipment
Industrial automation circuits
Power distribution in residential buildings
When it may not be suitable
This device is specifically designed for 24V DC control signals and will not function correctly if connected to AC control voltages. It is not intended for use in environments with extreme moisture or high levels of dust without appropriate protective enclosure housing.
Key specifications
Rated current: 25A
Contact configuration: 2 normally open (NO) contacts
Control voltage: 24V DC
Mounting type: DIN rail (TH35)
Modular width: Standard installation size
How to use
The contactor is designed for mounting on a standard TH35 DIN rail within an electrical distribution board. Ensure that the power supply is disconnected before installation. Connect the 24V DC control wires to the designated coil terminals and wire the load circuit through the main contact terminals. Verify all connections for tightness and ensure the wiring matches the electrical diagram before restoring power to the system.
What to consider before purchase
Verify that your control system provides a 24V DC signal.
Ensure the load current does not exceed the 25A rating.
Check available space on your DIN rail for modular components.
Usage recommendations
For optimal longevity and performance, ensure the contactor is installed in a well-ventilated distribution board to prevent overheating during prolonged operation. Regularly inspect terminal connections for tightness during scheduled maintenance.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. 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

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