# Siemens 5ST3011 Auxiliary Switch for Circuit Breakers, 2NO, Side-Mounted

**URL:** https://aio.lv/en/product--siemens-5st3011--1510494
**Data updated:** 2026-05-18 02:46 (EEST)
**Category:** Printer & Copier Parts
**Manufacturer:** Siemens
**Manufacturer code:** 5ST3011
**EAN:** 4001869187419
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 17.49 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 14.45 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-5st3011--1510494

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The Siemens 5ST3011 is a side-mounted auxiliary switch designed for use with circuit breakers. Featuring a 2NO (normally open) contact configuration, this component provides reliable status signaling for electrical distribution systems. It is engineered for seamless integration into industrial and commercial electrical panels, ensuring precise monitoring and control of circuit breaker operations.

## Long description

The Siemens 5ST3011 is a high-quality side-mounted auxiliary switch engineered for integration with compatible circuit breakers. This component features a 2NO (normally open) contact configuration, providing reliable status signaling for electrical distribution systems. It is designed to facilitate precise monitoring and control of circuit breaker operations within industrial and commercial electrical panels, ensuring consistent performance and safety in complex electrical installations.
Advantages
This auxiliary switch offers seamless compatibility with Siemens circuit breakers, allowing for straightforward installation and reliable operation. The side-mounted design ensures that the component does not interfere with the primary breaker mechanism, maintaining a compact footprint within the electrical cabinet. By providing accurate feedback on the switching state, it enhances the overall visibility and management of electrical circuits, which is essential for maintaining operational efficiency and preventing downtime in critical systems.
Suitable for
Industrial electrical distribution panels
Commercial building power management systems
Automated monitoring of circuit breaker status
Integration into control cabinets requiring remote signaling
When it may not be suitable
This device is specifically designed for use with compatible Siemens circuit breakers and may not be compatible with other brands or non-standard breaker models. It is not intended for high-power switching applications, as it is strictly an auxiliary signaling component.
Key specifications
Contact configuration: 2NO (normally open)
Mounting type: Side-mounted
Application: Circuit breaker status signaling
Compatibility: Siemens circuit breaker systems
How to use
The auxiliary switch should be installed by a qualified electrician in accordance with local electrical regulations. Before installation, ensure that the main power supply to the circuit breaker is disconnected. The switch is mounted to the side of the circuit breaker housing, ensuring that the mechanical linkage is correctly aligned. Once securely attached, the electrical connections for the signaling circuit should be wired to the terminals according to the provided wiring diagram. After installation, perform a functional test to verify that the switch correctly signals the open and closed states of the breaker.
What to consider before purchase
Verify compatibility with your specific circuit breaker model
Ensure there is sufficient physical space on the side of the breaker for mounting
Confirm that the 2NO contact configuration meets your control system requirements
Usage recommendations
Always ensure that the electrical system is de-energized before performing any installation or maintenance work on the auxiliary switch. Regularly inspect the connections to ensure they remain tight and free from corrosion to maintain reliable signaling performance.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.066 kg |
| Product colour | Multicolour |

## FAQ

### How much does the Siemens 5ST3011 Auxiliary Switch cost, and is it available for purchase?

The price is 17.49 € (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 14.07.2026 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

https://aio.lv/img/cache/product/1510494/57987493_large.webp