# Siemens 5TT5910-1 Auxiliary Contact 1NO 1NC

**URL:** https://aio.lv/en/product--siemens-5tt59101--1841094
**Data updated:** 2026-05-18 02:47 (EEST)
**Category:** Power Sockets
**Manufacturer:** Siemens
**Manufacturer code:** 5TT59101
**EAN:** 4001869344232
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 64.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 53.71 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-5tt59101--1841094

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.89 EUR |
| Courier delivery to door | 22.07.2026 | 17.95 EUR |

## Summary description

The Siemens 5TT5910-1 auxiliary contact is a reliable switching component designed for integration with electrical installation devices. Featuring a 1NO (normally open) and 1NC (normally closed) configuration, this auxiliary switch provides essential feedback on the status of the main switching device. It is engineered for industrial and commercial electrical systems, ensuring precise control and monitoring capabilities in various automation and distribution applications.

## Long description

The Siemens 5TT5910-1 auxiliary contact is a high-quality switching component engineered to provide reliable status feedback for electrical installation devices. Designed for seamless integration, this unit features a 1NO (normally open) and 1NC (normally closed) contact configuration, allowing for versatile monitoring of the primary switching device's state. It is built to meet the rigorous demands of industrial and commercial electrical systems, ensuring consistent performance and precise control in complex automation and power distribution environments.
Advantages
This auxiliary contact offers exceptional reliability and durability, which are hallmarks of Siemens engineering. By providing clear and accurate status signals, it enhances the safety and operational efficiency of electrical installations. Its compact design allows for easy installation alongside compatible devices, saving valuable space in distribution boards and control panels. The robust construction ensures long-term stability even in demanding operational conditions, making it a dependable choice for professional electrical setups.
Suitable for
Monitoring the status of contactors and circuit breakers
Industrial automation and control systems
Commercial power distribution boards
Feedback loops in electrical signaling circuits
When it may not be suitable
This device is not intended for direct load switching of high-power equipment and should only be used as a signal or control contact. It may not be compatible with non-Siemens installation devices that do not support this specific auxiliary mounting interface.
Key specifications
Contact configuration: 1NO (normally open) and 1NC (normally closed)
Application: Status feedback for electrical installation devices
Compatibility: Designed for integration with Siemens modular devices
Operational environment: Industrial and commercial electrical systems
How to use
The auxiliary contact is designed to be mounted directly onto the side of the primary switching device. Ensure that the power supply to the main circuit is disconnected before attempting installation to prevent electrical hazards. Align the contact mechanism with the corresponding slot on the main device and secure it according to the manufacturer's mounting instructions. Once physically attached, connect the signal wires to the terminal points of the auxiliary contact to integrate it into your monitoring or control circuit.
What to consider before purchase
Verify compatibility with your existing Siemens switching device
Ensure the contact configuration (1NO/1NC) meets your control logic requirements
Confirm that the installation space in your distribution board is sufficient
Usage recommendations
Always perform a functional test of the auxiliary contact after installation to ensure it correctly reflects the status of the main device. Regularly inspect the terminal connections to maintain optimal signal integrity.

## FAQ

### How much does the Siemens 5TT5910-1 Auxiliary Contact cost, and is it available for purchase?

The price is 64.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 17.07.2026 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

## Image

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