# Modular Installation Contactor ZAMEL STM-25-20 — 25A, 2 NO, 230V AC

**URL:** https://aio.lv/en/product--zamel-ext10000288--12399163
**Data updated:** 2026-04-27 22:33 (EEST)
**Category:** Power Sockets
**Manufacturer:** ZAMEL
**Manufacturer code:** EXT10000288
**EAN:** 5903669487296
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 18.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 15.28 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--zamel-ext10000288--12399163

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

ZAMEL STM-25-20 is a modular installation contactor rated for 25 A with two normally open (2 NO) contacts and a 230 V AC coil. Designed for DIN-rail mounting in electrical distribution and control panels, it switches lighting, small motors and resistive loads. Suitable for residential and light-commercial automation and protection circuits.

## Long description

ZAMEL STM-25-20 is a modular installation contactor designed for DIN-rail mounting in electrical distribution and control panels. It features a 25 A rated switching capacity, two normally open (2 NO) load contacts and a 230 V AC coil suitable for standard mains control. The device is intended to switch lighting circuits, small motors and resistive loads in residential and light-commercial automation and protection circuits.
Advantages
The contactor provides a compact DIN-rail form factor that saves panel space and integrates with common modular accessories. With a 25 A rating and dual normally open contacts it allows simple control of two circuits or doubled load paths from a single coil. The 230 V AC coil matches typical control voltages used in building installations, enabling direct connection to phase-controlled switches or automation outputs. The product is manufactured by ZAMEL, a supplier of electrical installation components, and is designed for straightforward installation and operation in standard distribution boards.
Suitable for
Switching domestic and corridor lighting circuits
Controlling small asynchronous motors and pumps within rated current
Automation tasks in residential and light-commercial panels
Resistive loads such as heaters and immersion elements within 25 A
When it may not be suitable
This modular contactor is not intended for high-power industrial applications that require switching currents significantly above 25 A or specialized contactors with auxiliary functions. It is also unsuitable where DC coil operation is required, as the coil is specified for 230 V AC. For loads with high inrush currents, harmonic distortion, or reactive power beyond typical small motors, evaluate contactor sizing and protective measures before use.
Key specifications
Rated switching current: 25 A
Contact configuration: 2 normally open (2 NO)
Coil voltage: 230 V AC
Mounting: DIN-rail (modular form factor)
Typical applications: lighting, small motors, resistive loads
How to use
Mount the STM-25-20 on a standard DIN-rail inside the distribution or control panel and connect supply and load conductors to the designated input and output terminals following local wiring regulations. Connect the 230 V AC control supply to the coil terminals; ensure control wiring is de-energized during installation. Use appropriate overcurrent protection upstream of the contactor sized to the connected loads and the contactor rating. Verify correct operation by energizing the coil and confirming switching of the intended circuits.
What to consider before purchase
Confirm the total continuous and starting current of connected loads does not exceed 25 A per contactor.
Ensure control voltage in your system is 230 V AC compatible with the coil.
Check available DIN-rail space and terminal clearances in your panel.
Plan for appropriate upstream circuit protection and thermal considerations for grouped loads.
Usage recommendations
For reliable service, use the contactor within rated limits, provide proper short-circuit and overload protection, and follow local electrical codes. When switching motors or inductive loads, consider using an appropriate protective relay or soft-start device to limit inrush currents and extend contact life.

## FAQ

### How much does the ZAMEL STM-25-20 modular contactor 25A 2NO 230V cost, and is it available for purchase?

The price is 18.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 78 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 14.07.2026 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/12399163/68681883_large.webp