# Voltage Loss Indicator ZAMEL SZN-204 (STI10000028) for 230V Supply

**URL:** https://aio.lv/en/product--zamel-sti10000028--11229831
**Data updated:** 2026-03-20 09:48 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** ZAMEL
**Manufacturer code:** STI10000028
**EAN:** 5903669002048
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 52.49 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 43.38 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--zamel-sti10000028--11229831

## 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 SZN-204 (STI10000028) is a 230V voltage loss indicator designed to detect and signal the disappearance of mains voltage. Intended for installation in electrical panels, it monitors 230 V supply presence and provides a clear signal when voltage is lost, aiding maintenance, safety checks and automation systems that require reliable mains-failure detection.

## Long description

ZAMEL SZN-204 voltage loss indicator is designed for monitoring the presence of 230 V mains supply and signalling when supply disappears. Intended for mounting in electrical distribution panels, the device provides a clear indication of mains failure to support maintenance, safety checks and automation systems that rely on accurate detection of voltage loss. The compact module fits standard panel installation spaces and integrates with control circuits that need a reliable mains-failure input.
Advantages
The indicator continuously monitors 230 V supply and triggers an immediate signal when voltage is lost, reducing the time needed to detect outages. Its panel-mount design allows easy installation in distribution boards and switchgear, while compatibility with standard 230 V systems ensures broad applicability. The device offers straightforward operation without complex configuration and provides stable, repeatable performance for long-term monitoring tasks.
Suitable for
Electrical distribution boards and switchgear monitoring
Industrial and commercial electrical installations requiring mains-failure detection
Automation systems that need a reliable input for loss-of-voltage events
Maintenance and safety verification routines in facilities
Key specifications
Operating supply voltage: 230 V AC
Function: detection and signalling of mains voltage disappearance
Mounting: panel/distribution board installation
Output type: signal suitable for integration with control circuits and monitoring systems
Form factor: compact module for standard electrical panel spaces
How to use
Install the voltage loss indicator in the electrical panel according to applicable wiring and safety standards. Connect the device to the 230 V supply to be monitored and wire the signal output to the monitoring or control circuit that will receive the loss-of-voltage indication. After installation, verify correct operation by simulating a supply interruption to confirm the indicator signals as expected. Regular visual inspections and functional tests are recommended to ensure ongoing reliability.
Usage recommendations
Ensure installation and wiring are performed by qualified personnel following local regulations. Use the device only within its specified 230 V operating range and protect it from exposure to moisture and excessive temperature. Periodically test the indicator as part of routine maintenance to verify correct integration with automation and safety systems.

## FAQ

### How much does the Voltage Loss Indicator ZAMEL SZN-204 cost, and is it available for purchase?

The price is 52.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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/11229831/62117745_large.webp