# Zamel SPM-05-20 Auxiliary Contact for EXTA STM Contactors, 5A, 2NO

**URL:** https://aio.lv/en/product--zamel-ext10000313--12452670
**Data updated:** 2026-05-18 02:50 (EEST)
**Category:** Home Automation
**Manufacturer:** ZAMEL
**Manufacturer code:** EXT10000313
**EAN:** 5903669493303
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 6.99 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 5.78 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--zamel-ext10000313--12452670

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

The Zamel SPM-05-20 is an auxiliary contact module designed for use with EXTA STM series contactors. It features a 5A current rating and 2NO (normally open) contact configuration. This component is essential for expanding the control and signaling capabilities of electrical installations, ensuring reliable switching and monitoring in industrial or residential automation systems.

## Long description

The Zamel SPM-05-20 is a high-quality auxiliary contact module specifically engineered for seamless integration with the EXTA STM series of contactors. This component serves as a critical extension for electrical control systems, providing additional switching capacity and status monitoring. With a robust design and a 5A current rating, it ensures reliable performance in both residential and industrial automation environments, allowing for more complex control logic and signaling configurations.
Advantages
The primary advantage of the Zamel SPM-05-20 lies in its perfect compatibility with the EXTA STM contactor line, ensuring a quick and secure installation process. By providing two normally open (2NO) contacts, it significantly enhances the flexibility of your electrical installation, enabling the monitoring of contactor status or the control of secondary circuits. Its compact design saves valuable space in distribution boards while maintaining high operational reliability and durability under standard electrical loads.
Suitable for
Expanding control circuits in automation systems
Status signaling for contactors in residential switchboards
Industrial control panel monitoring
Integration with building management systems
This auxiliary contact is not suitable for applications requiring high-power switching beyond its 5A rating or for use with contactors outside the EXTA STM series. It is also not intended for environments with extreme moisture or corrosive atmospheres unless housed in an appropriate protective enclosure.
Key specifications
Contact configuration: 2NO (normally open)
Rated current: 5A
Compatibility: EXTA STM series contactors
Mounting: Modular design for standard rail installation
Installation should be performed by a qualified electrician in accordance with local safety regulations. The module is designed to be snapped onto the side of the main contactor unit. Ensure that the power supply is disconnected before attempting to mount or wire the device. Once attached, the auxiliary contacts will mechanically follow the state of the main contactor, providing reliable feedback or control signals.
What to consider before purchase
Verify that your existing contactor is part of the EXTA STM series
Ensure the 5A current rating is sufficient for your control circuit requirements
Check available space in your distribution board for the additional module width
For optimal performance and longevity, ensure that all electrical connections are tightened to the manufacturer's specified torque and that the device is protected from dust and excessive vibration within the electrical cabinet.

## FAQ

### How much does the Zamel SPM-05-20 Auxiliary Contact for EXTA STM Contactors cost, and is it available for purchase?

The price is 6.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 14 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 03.07.2026 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/12452670/68755258_large.webp