# Simet STB 300 SIMBLOCK Screw Rail Terminal Block for Al/Cu Conductors, Grey

**URL:** https://aio.lv/en/product--simet-81301002--12449184
**Data updated:** 2026-05-18 02:52 (EEST)
**Category:** Power Sockets
**Manufacturer:** Simet
**Manufacturer code:** 81301002
**EAN:** 5907813232831
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 42.99 €
**Prices and availability valid until:** 2026-07-09 23:59
**Price without VAT (21%):** 35.53 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--simet-81301002--12449184

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.99 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

The Simet STB 300 SIMBLOCK is a professional screw-type rail terminal block designed for secure electrical connections of both aluminum and copper conductors. This grey terminal block ensures reliable conductivity and mechanical stability in industrial and residential electrical distribution systems. It is engineered for easy mounting on standard DIN rails, providing a robust solution for power distribution and control panel wiring.

## Long description

The Simet STB 300 SIMBLOCK is a professional screw-type rail terminal block engineered for the reliable connection of aluminum and copper conductors. Designed for integration into industrial and residential electrical distribution systems, this component ensures high mechanical stability and excellent electrical conductivity. Its robust construction makes it an essential element for power distribution boards and complex control panel wiring, providing a secure interface for various conductor types.
Advantages
The primary benefit of the Simet STB 300 is its versatility in handling both aluminum and copper wiring, which simplifies inventory management and installation processes. The terminal block is built for durability, offering a secure screw-clamping mechanism that maintains consistent contact pressure over time, thereby reducing the risk of overheating or connection failure. Its compact design allows for efficient space utilization on standard mounting rails, facilitating organized and professional electrical installations.
Suitable for
Industrial power distribution systems
Residential electrical panels
Control cabinet wiring
Projects requiring mixed aluminum and copper conductor connections
When it may not be suitable
This terminal block is not intended for use in environments with extreme corrosive conditions or high-vibration areas unless additional protective enclosures are provided. It is also not suitable for conductors that exceed the specified cross-sectional capacity of the terminal.
Key specifications
Type: Screw-type rail terminal block
Compatibility: Aluminum and copper conductors
Mounting: Standard DIN rail
Color: Grey
Application: Power distribution and control systems
How to use
To install the Simet STB 300, snap the terminal block onto a standard DIN rail until it clicks securely into place. Strip the insulation from the end of the conductor according to the required length, insert the wire into the terminal opening, and tighten the screw using an appropriate screwdriver to ensure a firm connection. Ensure that the conductor is fully seated before applying torque to the screw to prevent loose connections.
What to consider before purchase
Verify the cross-sectional area of your conductors matches the terminal specifications.
Ensure the mounting rail type is compatible with the block design.
Check local electrical regulations regarding the use of aluminum conductors in your specific application.
Usage recommendations
Always ensure that the power supply is disconnected before performing any installation or maintenance work on the terminal block. Regularly inspect connections in high-load systems to ensure screws remain tight and the integrity of the electrical contact is maintained.

## FAQ

### How much does the Simet STB 300 SIMBLOCK Screw Rail Terminal Block cost, and is it available for purchase?

The price is 42.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 51 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 02.07.2026 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 Simet 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 Simet 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/12449184/68752040_large.webp