# Siemens 5TT4217-2 Installation Relay 16A 2CO 230V/400V AC 24V DC

**URL:** https://aio.lv/en/product--siemens-5tt42172--1842006
**Data updated:** 2026-05-18 02:48 (EEST)
**Category:** Power Sockets
**Manufacturer:** Siemens
**Manufacturer code:** 5TT42172
**EAN:** 4001869312941
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 58.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 48.75 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-5tt42172--1842006

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

The Siemens 5TT4217-2 is a high-quality installation relay designed for reliable electrical switching in industrial and residential applications. It features a 16A current rating and a 2CO contact configuration. The device supports a control voltage of 24V DC and is compatible with 230V/400V AC circuits. This robust component ensures efficient power management and circuit control in various electrical installations.

## Long description

The Siemens 5TT4217-2 installation relay is a professional-grade switching component engineered for precise electrical circuit management in both residential and industrial environments. This device provides reliable performance for controlling lighting, heating, or ventilation systems, ensuring seamless integration into standard electrical distribution boards. With its robust construction and high-quality internal mechanisms, it offers consistent operation for demanding electrical applications.
Advantages
This installation relay stands out due to its high switching capacity and versatile contact configuration. The 2CO (two-changeover) contact arrangement allows for flexible circuit design, enabling the control of two independent circuits or complex switching logic. Its compatibility with both 230V and 400V AC main circuits, combined with a 24V DC control voltage, makes it a highly adaptable solution for modern electrical infrastructure. The compact design ensures efficient use of space within DIN-rail mounted systems.
Suitable for
Residential lighting control systems
Industrial automation and process control
Heating and cooling system management
Switching of auxiliary circuits in distribution boards
When it may not be suitable
This relay is not intended for high-frequency switching applications that exceed its mechanical or electrical lifespan ratings. It is also not suitable for direct control of high-inductive loads that require specialized contact protection or arc suppression beyond standard specifications.
Key specifications
Rated current: 16A
Contact configuration: 2CO (two-changeover)
Control voltage: 24V DC
Main circuit voltage: 230V/400V AC
Weight: 0.149 kg
How to use
The device is designed for mounting on a standard DIN rail within an electrical enclosure. Installation should be performed by a qualified electrician in accordance with local safety regulations. Connect the 24V DC control signal to the designated coil terminals and wire the load circuits to the 2CO contact terminals, ensuring that the current and voltage ratings are strictly observed to prevent damage to the device or the connected equipment.
What to consider before purchase
Verify that your control system provides a 24V DC output.
Ensure the load current does not exceed the 16A rating.
Check available space on the DIN rail within your distribution board.
Confirm that the 2CO contact configuration meets your specific circuit requirements.
Usage recommendations
Always ensure that the power supply is disconnected before performing any wiring or maintenance on the relay. Regularly inspect the connections for tightness to prevent overheating and ensure long-term operational reliability.

## Specifications

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.149 kg |

### Design

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

## FAQ

### How much does the Siemens 5TT4217-2 Installation Relay cost, and is it available for purchase?

The price is 58.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 13 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 13.07.2026 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/1842006/47666844_large.webp