# Mersen STPT2-40K1000V-YPV Type 2 PV Surge Protection Device 3P 10kA 1.06kV DC

**URL:** https://aio.lv/en/product--mersen-83020140--12450999
**Data updated:** 2026-05-18 02:54 (EEST)
**Category:** Solar Panel Accessories
**Manufacturer:** Mersen
**Manufacturer code:** 83020140
**EAN:** 8435297850878
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 61.99 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 51.23 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mersen-83020140--12450999

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The Mersen STPT2-40K1000V-YPV is a Type 2 surge protection device specifically designed for photovoltaic installations. Featuring a 3-pole configuration, it provides a nominal discharge current of 10kA and a maximum operating voltage of 1.06kV DC. This device effectively protects sensitive solar power equipment from transient overvoltages, ensuring system reliability and longevity in various DC power applications.

## Long description

The Mersen STPT2-40K1000V-YPV is a high-performance Type 2 surge protection device engineered specifically for the rigorous demands of photovoltaic systems. This 3-pole device is designed to safeguard sensitive solar power equipment by diverting transient overvoltages to the ground, thereby preventing damage to critical components such as inverters and solar panels. With a robust construction and precise engineering, it ensures the continuous and reliable operation of DC power installations.
Advantages
This surge protection device offers exceptional reliability in protecting solar energy systems from electrical surges caused by atmospheric discharges or switching operations. Its Type 2 classification makes it ideal for secondary protection, effectively limiting voltage spikes to levels that connected equipment can withstand. The compact 3-pole design allows for efficient integration into existing electrical cabinets, while its high discharge capacity ensures long-term durability even in demanding environmental conditions. By maintaining system integrity, it significantly reduces the risk of downtime and costly repairs for photovoltaic arrays.
Suitable for
Photovoltaic power generation systems
Solar inverter protection
DC power distribution boards
Residential and commercial solar installations
When it may not be suitable
This device is specifically designed for DC photovoltaic applications and should not be used in AC power circuits. It is intended for Type 2 surge protection and may not provide sufficient protection in areas with extremely high lightning strike frequency where Type 1 protection is required.
Key specifications
Type: 2
Poles: 3
Nominal discharge current: 10kA
Maximum operating voltage: 1.06kV DC
How to use
The device should be installed by a qualified professional in accordance with local electrical regulations. It is typically mounted on a standard DIN rail within the solar distribution box. Ensure that the connections are secure and that the wiring matches the polarity requirements of the photovoltaic system. The device should be connected in parallel with the DC circuit to be protected, ensuring that the grounding connection is robust and has the lowest possible impedance.
What to consider before purchase
Verify that the maximum operating voltage of your PV string does not exceed 1.06kV DC.
Ensure there is sufficient space on the DIN rail within your distribution enclosure.
Confirm that the system requires a 3-pole configuration for your specific installation layout.
Usage recommendations
Regularly inspect the status indicator on the device to ensure it is functioning correctly. If the indicator shows that the protection module has reached the end of its service life, it must be replaced immediately to maintain system safety.

## FAQ

### How much does the Mersen STPT2-40K1000V-YPV Type 2 PV Surge Protection Device cost, and is it available for purchase?

The price is 61.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 7 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 06.07.2026 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 Mersen 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 Mersen 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/12450999/68753728_large.webp