# Schelinger A51-SPD03-4P-B+C Surge Protection Device 4P 12.5kA Class T1+T2

**URL:** https://aio.lv/en/product--oem-a51-spd03-4p-bc--12409584
**Data updated:** 2026-05-11 20:42 (EEST)
**Category:** Power Extension Cords & Surge Protectors
**Manufacturer:** OEM
**Manufacturer code:** A51-SPD03-4P-B+C
**EAN:** 5900280964564
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 58.99 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 48.75 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--oem-a51-spd03-4p-bc--12409584

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.89 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

The Schelinger A51-SPD03-4P-B+C is a 4-pole surge protection device designed for electrical installations. It features a discharge current of 12.5kA (10/350) and combines Class T1+T2 (B+C) protection. This device effectively protects sensitive equipment against voltage surges caused by atmospheric discharges or switching operations, ensuring safety and reliability in residential and industrial power distribution systems.

## Long description

The Schelinger A51-SPD03-4P-B+C is a high-performance 4-pole surge protection device engineered to safeguard electrical installations from dangerous voltage spikes. By combining Class T1+T2 (B+C) protection, this unit provides a comprehensive defense mechanism against transient overvoltages resulting from atmospheric discharges, such as lightning strikes, as well as internal switching operations within the power grid. Its robust design ensures consistent reliability for both residential and industrial electrical distribution systems.
Advantages
This surge protection device offers a dual-stage defense by integrating both T1 and T2 protection classes into a single compact unit. It is capable of handling significant discharge currents, providing a high level of safety for sensitive electronic equipment and household appliances. The 4-pole configuration makes it suitable for standard three-phase electrical systems, ensuring balanced protection across all phases and the neutral line. Its durable construction is designed for long-term operation in demanding environments, minimizing the risk of equipment damage and costly downtime.
Suitable for
Residential electrical distribution boards
Industrial power supply systems
Protection of sensitive electronic devices and appliances
Three-phase electrical installations
When it may not be suitable
This device is not intended for use in DC electrical systems or specialized high-voltage industrial grids that exceed its specified operational parameters. It should not be installed in environments where the expected surge energy consistently exceeds the device's rated discharge capacity.
Key specifications
Protection class: T1+T2 (B+C)
Number of poles: 4
Discharge current: 12.5kA (10/350)
Application: AC power distribution
How to use
The device must be installed by a qualified electrician in accordance with local electrical safety regulations. It is typically mounted on a standard DIN rail within the main distribution board, positioned at the point of entry for the power supply. Proper grounding is essential for the device to function correctly; ensure that the earth connection is secure and has low impedance to allow for effective surge dissipation.
What to consider before purchase
Verify that the voltage rating matches your local power grid specifications.
Ensure there is sufficient space on the DIN rail within your distribution box.
Confirm that the installation environment meets the required safety standards for surge protection devices.
Usage recommendations
Regularly inspect the status indicator on the device to ensure it remains in an operational state. If the indicator shows that the protection module has reached its end of life, replace the unit immediately to maintain continuous protection for your electrical system.

## FAQ

### How much does the Schelinger A51-SPD03-4P-B+C Surge Protection Device 4P cost, and is it available for purchase?

The price is 58.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 26 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 07.07.2026 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 OEM 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 OEM 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/12409584/68740528_large.webp