# End cap Siemens 5ST3766 for electrical terminal blocks, model 5ST3766

**URL:** https://aio.lv/en/product--siemens-5st3766--3537912
**Data updated:** 2026-02-12 09:54 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** Siemens
**Manufacturer code:** 5ST3766
**EAN:** 4001869373997
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 30.99 €
**Prices and availability valid until:** 2026-08-13 23:59
**Price without VAT (21%):** 25.61 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-5st3766--3537912

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 11.08.2026 | free |
| Pickup points | 14.08.2026 | 1.89 EUR |
| Courier delivery to door | 14.08.2026 | 4.99 EUR |

## Summary description

Siemens end cap 5ST3766 is a replacement accessory designed for use with compatible electrical terminal blocks. It provides a protective closure for exposed terminal ends, helping to prevent accidental contact and maintain tidy wiring. Suitable for industrial and electrical installation tasks, it aids safety and organization in control cabinets and junctions.

## Long description

Siemens end cap 5ST3766 is an accessory designed for compatible electrical terminal blocks to close and protect exposed terminal ends. It provides a neat finish for wiring runs inside control cabinets and junction boxes while reducing the risk of accidental contact with live parts. The end cap is suitable for use in industrial and building electrical installations where terminal block assemblies require a secure closure.
Advantages
The end cap offers a compact and durable closure that maintains the layout and alignment of terminal block rows. It helps prevent dust ingress and accidental short circuits by covering exposed conductors at the end of a terminal strip. Its design allows for simple installation and consistent fit on matching terminal blocks, supporting tidy wiring and safer maintenance operations.
Suitable for
 Closing exposed ends of terminal block assemblies in control panels
 Protecting terminal rows in industrial automation cabinets
 Maintaining neat wiring in electrical distribution and junction boxes
 Temporary or permanent installations where a protective end cover is required
Key specifications
 Function: protective end cover for terminal blocks
 Compatibility: designed for use with matching Siemens terminal block series
 Material characteristics: rigid insulating material suitable for electrical applications
 Form factor: compact profile to align with terminal block rows
 Installation: snap-on or press-fit attachment for secure closure
How to use
Align the end cap with the open end of the terminal block row and press it into position until it engages securely. Ensure the end cap fully covers exposed terminals and conductors to reduce the risk of accidental contact. For removal, carefully disengage the cap by applying controlled pressure to the release points or using an appropriate non-conductive tool to avoid damage to adjacent components. Follow all applicable electrical safety procedures, de-energize circuits when installing or removing accessories, and consult terminal block documentation for confirmed compatibility.
Usage recommendations
Use the end cap only with compatible terminal block models and within the electrical and environmental ratings specified for the terminal assembly. Verify fit and insulation integrity after installation and periodically during maintenance. Do not modify the end cap or use it as a substitute for required protective enclosures in high-voltage or hazardous environments.

## FAQ

### How much does the End cap Siemens 5ST3766 cost, and is it available for purchase?

The price is 30.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 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 11.08.2026 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

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