# Siemens 5TT4201-0 Installation Relay 16A 1NO 230V AC

**URL:** https://aio.lv/en/product--siemens-5tt42010--3434417
**Data updated:** 2026-05-18 02:39 (EEST)
**Category:** Power Sockets
**Manufacturer:** Siemens
**Manufacturer code:** 5TT42010
**EAN:** 4001869312705
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 36.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 30.16 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-5tt42010--3434417

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The Siemens 5TT4201-0 is a high-quality installation relay designed for efficient electrical circuit control. It features a 16A current rating and a 1NO contact configuration, operating at 230V AC. This reliable component is suitable for various industrial and residential automation applications, ensuring precise switching and long-term durability in electrical distribution systems.

## Long description

The Siemens 5TT4201-0 installation relay is a robust electrical component engineered for the reliable switching of circuits in both residential and industrial environments. Designed to handle a rated current of 16A, this device features a single normally open (1NO) contact configuration and operates on a 230V AC control voltage. It serves as an essential element in modern electrical distribution systems, providing consistent performance for automated lighting, heating, and ventilation control.
Advantages
This installation relay stands out due to its high operational reliability and compact design, which allows for space-saving installation within standard distribution boards. The device is built to withstand frequent switching cycles, ensuring longevity and minimal maintenance requirements. Its standardized design ensures compatibility with common electrical infrastructure, while the high-quality materials used in its construction provide excellent thermal stability and electrical safety during continuous operation.
Suitable for
Automated lighting control systems
Heating and ventilation circuit management
Industrial automation processes
Residential electrical distribution boards
When it may not be suitable
This relay is not intended for applications requiring high-frequency switching beyond its specified mechanical and electrical endurance limits. It is also not suitable for direct current (DC) applications or circuits exceeding the 16A rated current capacity.
Key specifications
Rated current: 16A
Contact configuration: 1NO (Normally Open)
Control voltage: 230V AC
Mounting type: DIN rail
How to use
The installation relay is designed for mounting onto a standard DIN rail within an electrical distribution cabinet. Ensure that the power supply is disconnected before installation. Connect the control circuit wires to the designated coil terminals and the load circuit wires to the switching contact terminals, ensuring that the voltage and current ratings are strictly adhered to. Once installed, verify the connections and test the switching function by energizing the control circuit.
What to consider before purchase
Verify that the control voltage matches your existing system (230V AC).
Ensure the load current does not exceed the 16A limit.
Check available space on the DIN rail within your distribution board.
Confirm that a single normally open contact meets your specific circuit requirements.
Usage recommendations
For optimal performance and safety, ensure that the relay is installed in a dry, dust-free environment and that all terminal connections are tightened to the manufacturer's specified torque settings. Regular inspection of the electrical connections is recommended to maintain system integrity.

## Specifications

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.114 kg |

### Design

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

## FAQ

### How much does the Siemens 5TT4201-0 Installation Relay cost, and is it available for purchase?

The price is 36.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 57 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 06.07.2026 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/3434417/47508453_large.webp