# Siemens 5TL1440-0 Modular Disconnector 4P 40A 400VAC

**URL:** https://aio.lv/en/product--siemens-5tl14400--1842096
**Data updated:** 2026-05-18 02:48 (EEST)
**Category:** Power Sockets
**Manufacturer:** Siemens
**Manufacturer code:** 5TL14400
**EAN:** 4001869469089
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 32.99 €
**Prices and availability valid until:** 2026-08-02 23:59
**Price without VAT (21%):** 27.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-5tl14400--1842096

## 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 5TL1440-0 is a high-quality 4-pole modular disconnector designed for reliable electrical circuit isolation. Rated for 40A and 400VAC, this device ensures safe disconnection in industrial and residential electrical installations. Its robust design provides efficient performance and durability, making it an essential component for power distribution systems requiring secure manual switching capabilities.

## Long description

The Siemens 5TL1440-0 is a professional-grade 4-pole modular disconnector engineered to provide reliable isolation of electrical circuits. Designed for demanding environments, this device supports a rated current of 40A and an operating voltage of 400VAC, ensuring consistent performance in both industrial and residential power distribution systems. Its compact modular architecture allows for seamless integration into standard distribution boards, facilitating secure manual switching operations whenever maintenance or safety isolation is required.
Advantages
This modular disconnector stands out due to its robust construction and high-quality materials, which ensure long-term durability and operational safety. The 4-pole configuration allows for the simultaneous disconnection of all phases and the neutral conductor, providing comprehensive isolation. Its design is optimized for ease of use, offering a clear switching mechanism that enhances safety during electrical maintenance tasks. Furthermore, the device is built to meet stringent electrical standards, guaranteeing reliability and protection within complex power distribution networks.
Suitable for
Industrial electrical installations
Residential power distribution boards
Manual circuit isolation for maintenance
Safety switching in commercial buildings
This device may not be suitable for applications requiring automatic circuit protection, such as overload or short-circuit tripping, as it functions strictly as a manual isolation switch. It is also not intended for use in environments exceeding its rated voltage or current specifications.
Key specifications
Number of poles: 4
Rated current: 40A
Rated voltage: 400VAC
Weight: 0.411 kg
Mounting type: Modular/DIN rail
To use the Siemens 5TL1440-0, install the unit onto a standard DIN rail within your distribution board. Ensure that all electrical connections are tightened according to the specified torque requirements to prevent overheating. The device is operated manually via the front-facing toggle switch, which provides a clear visual indication of the circuit status.
What to consider before purchase
Verify that the 40A current rating matches your circuit requirements
Ensure compatibility with your existing DIN rail distribution enclosure
Confirm that a 4-pole configuration is necessary for your specific wiring setup
For optimal safety and longevity, ensure that the installation is performed by a qualified electrician in accordance with local electrical codes and regulations. Regularly inspect the device for any signs of wear or loose connections during routine maintenance.

## Specifications

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.411 kg |

### Design

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

## FAQ

### How much does the Siemens 5TL1440-0 Modular Disconnector 4P 40A cost, and is it available for purchase?

The price is 32.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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, 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 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/1842096/47648755_large.webp