# Surge Protector pro tec BY1-B+C 4P 4-pole B+C (I+II) model 3212040

**URL:** https://aio.lv/en/product--pro-tec-3212040--12109804
**Data updated:** 2026-03-20 10:01 (EET)
**Category:** Power Extension Cords & Surge Protectors
**Manufacturer:** pro tec
**Manufacturer code:** 3212040
**EAN:** 5906742652086
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 64.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 53.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--pro-tec-3212040--12109804

## 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

pro tec BY1-B+C 4P (model 3212040) is a 4-pole surge protection device combining B and C class protection (stages I and II). Designed to protect electrical installations and connected equipment from transient overvoltages, it installs in distribution boards for residential, commercial or light industrial use. Key features include four-pole configuration and combined phase/N protection.

## Long description

pro tec BY1-B+C 4P (model 3212040) is a four-pole surge protection device that provides combined B and C class protection (stages I and II) for electrical distribution systems. Designed for installation in distribution boards, this unit protects both phase conductors and the neutral conductor against transient overvoltages originating from lightning impulses and switching events. Its four-pole topology ensures coordinated protection across all live conductors in residential, commercial and light industrial installations.
Advantages
The device offers coordinated two-stage surge protection that reduces residual overvoltage and improves the safety of connected equipment. Its four-pole design covers phase and neutral conductors, eliminating the need for separate neutral protection components. The compact form factor is suitable for DIN-rail mounting in standard distribution enclosures, and the combined B+C characteristics allow it to handle high-energy impulses while providing effective follow-up protection for common transient events.
Suitable for
 Residential distribution boards where protection of appliances and wiring is required
 Small commercial electrical installations such as offices and retail units
 Light industrial panels with sensitive electronic equipment
 Buildings with combined phase and neutral surge protection needs
Key specifications
 Configuration: four-pole protection covering all phase conductors and neutral
 Protection stages: combined primary and secondary surge protection (B and C class)
 Application: installation in electrical distribution boards on DIN-rail
 Protection type: transient overvoltage suppression for lightning and switching surges
 Typical use case: residential, commercial and light industrial electrical systems
How to use
Install the unit on the DIN-rail inside the distribution board according to local electrical codes and the manufacturer's installation instructions. Connect the phase conductors and neutral to the corresponding terminals, ensuring tight and secure connections and correct polarity. The device should be positioned to provide coordinated protection with upstream main protection and downstream branch circuit breakers; verify compatibility with system earthing arrangements before commissioning. After installation, periodically inspect visual indicators (if present) and wiring integrity as part of routine electrical maintenance.
Usage recommendations
Place the surge protector close to the main incoming supply or distribution point to ensure effective clamping of transient voltages. Ensure the device is combined with appropriate upstream overcurrent protection and that earthing/grounding connections comply with applicable standards. Replace the unit after sustained lightning strikes or if visual status indicators show impaired functionality.

## FAQ

### How much does the pro tec BY1-B+C 4P surge protector 3212040 cost, and is it available for purchase?

The price is 64.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 273 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 pro tec 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 pro tec 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/12109804/67645754_large.webp