# Arc protection unit ENSTO SDI25S for outdoor post insulators PAS — model SDI25S

**URL:** https://aio.lv/en/product--ensto-sdi25s--12107825
**Data updated:** 2026-03-20 09:58 (EET)
**Category:** Network Equipment Accessories
**Manufacturer:** ENSTO
**Manufacturer code:** SDI25S
**EAN:** 6438100324827
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 62.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 51.64 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ensto-sdi25s--12107825

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

ENSTO SDI25S arc protection unit designed for use with outdoor post insulators PAS. The device provides electrical arc protection for medium-voltage overhead line post insulators, helping detect and mitigate arcing faults. Intended for installation on standing insulator fittings to improve line safety and reduce fault propagation. Suitable for utility and industrial distribution networks.

## Long description

ENSTO SDI25S arc protection unit is designed for mounting on outdoor post insulators PAS to detect and mitigate electrical arcing on medium-voltage overhead lines. The device interfaces with standing insulator fittings and is intended to limit arc energy and reduce the likelihood of fault propagation along the line. It is suitable for utility and industrial distribution networks where enhanced arc detection and containment contribute to system safety and reliability.
Advantages
The ENSTO SDI25S provides timely arc detection and rapid intervention to help limit thermal and mechanical damage from arcing events on post insulators. Its design for outdoor post insulator installation ensures compatibility with standard PAS fittings, and it helps reduce downtime by minimizing fault escalation. Built for medium-voltage overhead applications, the unit contributes to safer distribution lines and clearer fault localization.
Suitable for
Medium-voltage overhead line post insulators
Utility distribution networks seeking arc mitigation on pole-mounted insulators
Industrial distribution systems with outdoor post insulators
Lines where reducing fault propagation and improving safety is required
Key specifications
Application: arc protection for outdoor post insulators designed for medium-voltage overhead lines
Mounting: for installation on standing post insulator fittings compatible with PAS type insulators
Function: arc detection and mitigation to limit arc energy and propagation
Environment: outdoor use, suitable for overhead distribution networks
Target sectors: utility and industrial distribution networks
How to use
Install the ENSTO SDI25S on the post insulator fitting according to mounting instructions provided by the insulator and device manufacturer. Ensure proper mechanical attachment to the standing insulator and confirm correct electrical connection as required for the arc protection function. After installation, verify device integrity and perform functional checks to confirm that arc detection circuits and mitigation features operate as intended within the medium-voltage distribution environment.
Usage recommendations
Follow local regulations and utility procedures for live-line work, and use qualified personnel for installation and testing. Regular inspection and periodic functional testing are recommended to ensure continued arc detection performance and overall reliability in outdoor conditions.

## FAQ

### How much does the ENSTO SDI25S arc protection unit cost, and is it available for purchase?

The price is 62.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 29 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 13.07.2026 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 ENSTO 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 ENSTO 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/12107825/67644139_large.webp