# Siemens 5SD7422-1 Type 2 Surge Arrester 2P 20kA 350V 1+1 with Signaling Contacts

**URL:** https://aio.lv/en/product--siemens-5sd7422-1--12466053
**Data updated:** 2026-05-18 09:38 (EEST)
**Category:** Power Extension Cords & Surge Protectors
**Manufacturer:** Siemens
**Manufacturer code:** 5SD7422-1
**EAN:** 4001869340302
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 181.99 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 150.40 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-5sd7422-1--12466053

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

The Siemens 5SD7422-1 is a Type 2 surge arrester designed for electrical protection. This 2-pole device features a 1+1 configuration, a discharge capacity of 20kA, and a rated voltage of 350V. It includes integrated signaling contacts for status monitoring. Ideal for safeguarding sensitive electrical equipment against transient overvoltages in residential and commercial distribution systems.

## Long description

The Siemens 5SD7422-1 is a high-performance Type 2 surge arrester engineered to provide reliable protection for electrical installations against transient overvoltages. This 2-pole device is configured in a 1+1 arrangement, specifically designed to safeguard sensitive electronic equipment in both residential and commercial power distribution systems. With a discharge capacity of 20kA and a rated voltage of 350V, it effectively diverts excess energy to ground, preventing damage to connected devices. The unit also features integrated signaling contacts, allowing for convenient remote status monitoring to ensure the system remains operational and secure.
Advantages
This surge arrester offers robust protection by limiting voltage spikes that can occur due to switching operations or indirect lightning strikes. The 1+1 configuration provides a balanced approach to protection, ensuring safety for both phase-to-neutral and neutral-to-earth paths. Its compact design allows for efficient use of space within distribution boards, while the integrated signaling contacts provide an immediate indication of the device's health, reducing the need for manual inspections and enhancing overall system reliability.
Suitable for
Residential electrical distribution boards
Commercial building power systems
Protection of sensitive electronic appliances
Office equipment and IT infrastructure
This device may not be suitable for primary lightning protection in areas with high direct lightning strike exposure, where Type 1 arresters are required. It is also not intended for use in high-voltage industrial grids exceeding its rated voltage specifications.
Key specifications
Type: 2 surge arrester
Poles: 2-pole (1+1 configuration)
Discharge capacity: 20kA
Rated voltage: 350V
Features: Integrated signaling contacts
Weight: 224 g
How to use
The Siemens 5SD7422-1 should be installed by a qualified electrician within the main distribution board or sub-distribution panel. It is mounted on a standard DIN rail. Ensure that the electrical supply is disconnected before installation. Connect the phase and neutral conductors to the designated terminals, and ensure a low-impedance connection to the protective earth system. The signaling contacts can be wired to a monitoring system or an alarm indicator to provide real-time status updates.
What to consider before purchase
Verify the rated voltage of your electrical system matches the 350V specification.
Ensure there is sufficient space on the DIN rail within your distribution board.
Confirm that the 1+1 configuration meets your specific grounding system requirements.
Check if your monitoring system is compatible with the integrated signaling contacts.
Usage recommendations
Regularly check the status indicator on the device to ensure it is functioning correctly. 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 equipment.

## Specifications

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.224 kg |

### Features

| Feature | Value |
|---|---|
| Product colour | Multicolour |

## FAQ

### How much does the Siemens 5SD7422-1 Type 2 Surge Arrester cost, and is it available for purchase?

The price is 181.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 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 16.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Siemens 5SD7422-1 Type 2 Surge Arrester be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Siemens 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 Siemens 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/12466053/68790517_large.webp