# Siemens 5SH122 DII Screw Cap for Circuit Breakers 25A E27

**URL:** https://aio.lv/en/product--siemens-5sh122--3437729
**Data updated:** 2026-06-17 08:23 (EEST)
**Category:** Other goods
**Manufacturer:** Siemens
**Manufacturer code:** 5SH122
**EAN:** 4001869145020
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 110.99 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 91.73 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-5sh122--3437729

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

The Siemens 5SH122 is a DII size screw cap designed for use with 25A circuit breakers featuring an E27 thread. This high-quality electrical accessory ensures secure installation and protection for fuse systems. It is an essential component for maintaining reliable electrical distribution in residential and industrial applications, providing durability and safety in accordance with Siemens standards.

## Long description

The Siemens 5SH122 DII screw cap is a specialized electrical component engineered for secure integration with 25A circuit breakers utilizing an E27 thread. This accessory serves as a critical interface in fuse systems, ensuring that the fuse remains firmly in place while providing necessary protection against accidental contact. Manufactured to meet rigorous Siemens quality standards, this screw cap is designed for longevity and consistent performance in various electrical distribution environments.
Advantages
This screw cap offers a robust design that facilitates reliable electrical connections within fuse bases. Its construction ensures high mechanical stability and durability, which is essential for maintaining the integrity of electrical circuits over time. By providing a precise fit for E27 threaded systems, it minimizes the risk of loose connections and enhances the overall safety of the electrical installation. The component is built to withstand standard operational stresses, making it a dependable choice for both residential and industrial fuse protection.
Suitable for
Residential electrical distribution boards
Industrial fuse systems requiring DII size components
Replacement of worn or damaged screw caps in E27 fuse bases
Securing 25A rated fuses in standard electrical installations
When it may not be suitable
This screw cap is specifically designed for DII size fuse bases with an E27 thread and is not compatible with other fuse sizes or thread types. It should not be used in applications where the current rating exceeds the specified 25A limit or in environments that require specialized explosion-proof or moisture-sealed enclosures.
Key specifications
Size: DII
Thread type: E27
Rated current: 25A
Compatibility: DII fuse bases
How to use
To install the screw cap, ensure that the power supply to the circuit is completely disconnected to prevent electrical shock. Insert the appropriate 25A fuse into the fuse base. Place the screw cap over the fuse and rotate it clockwise into the E27 thread of the fuse base. Tighten the cap firmly by hand until it is fully seated. Do not overtighten with tools, as this may damage the threads or the cap material.
What to consider before purchase
Verify that your existing fuse base is compatible with the DII size and E27 thread.
Ensure the current rating of your fuse system matches the 25A specification.
Check the physical space in your distribution board to ensure the cap fits correctly.
Usage recommendations: Regularly inspect the screw cap for signs of thermal damage or mechanical wear during routine maintenance. If the cap becomes difficult to unscrew or shows signs of melting, replace it immediately to maintain system safety.

## FAQ

### How much does the Siemens 5SH122 DII Screw Cap 25A E27 cost, and is it available for purchase?

The price is 110.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 23.07.2026 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. 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 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

## Image

https://aio.lv/img/cache/product/3437729/58387752_large.webp