# Siemens 3SE51120CH01 Position Switch, 1NO+1NC, Metal Housing, Rotary Lever with Roller

**URL:** https://aio.lv/en/product--siemens-3se51120ch01--1840536
**Data updated:** 2026-05-18 02:47 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** Siemens
**Manufacturer code:** 3SE51120CH01
**EAN:** 4011209692220
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 81.99 €
**Prices and availability valid until:** 2026-08-13 23:59
**Price without VAT (21%):** 67.76 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3se51120ch01--1840536

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 31.07.2026 | free |
| Pickup points | 05.08.2026 | 1.89 EUR |
| Courier delivery to door | 05.08.2026 | 4.99 EUR |

## Summary description

The Siemens 3SE51120CH01 is a robust position switch featuring a durable metal housing and a rotary lever with a roller actuator. Equipped with 1NO and 1NC contacts, this switch is designed for reliable industrial automation and position sensing applications. Its snap-action mechanism ensures precise switching performance in demanding environments, making it an ideal choice for monitoring the movement of machinery and equipment components.

## Long description

The Siemens 3SE51120CH01 position switch is a high-performance industrial component engineered for precise position sensing and limit detection. Housed in a robust metal enclosure, this device is built to withstand the rigors of demanding industrial environments. It features a reliable rotary lever with a roller actuator, providing consistent mechanical feedback for automated systems and machinery monitoring.
Advantages
This position switch offers exceptional durability due to its high-quality metal housing, which provides superior protection against mechanical impact and environmental stress. The snap-action contact mechanism ensures rapid and reliable switching, minimizing the risk of contact welding and ensuring long-term operational stability. Its versatile design allows for easy integration into existing control circuits, providing a dependable solution for monitoring moving parts in various industrial applications.
Suitable for
Monitoring the position of machine doors and safety guards
Detecting the end-of-travel limits for conveyor systems
Tracking the movement of automated assembly line components
Industrial automation and process control systems
When it may not be suitable
This switch is not intended for use in explosive atmospheres or environments with extreme chemical corrosivity unless additional protective measures are taken. It is also not suitable for applications requiring non-contact sensing, such as proximity detection of non-metallic objects.
Key specifications
Contact configuration: 1NO (Normally Open) and 1NC (Normally Closed)
Actuator type: Rotary lever with roller
Housing material: Metal
Switching mechanism: Snap-action
How to use
The switch should be mounted securely to a stable surface using the designated fixing points. Ensure the rotary lever is positioned so that the moving object makes contact with the roller at the appropriate point in its travel path. Connect the electrical leads to the 1NO and 1NC terminals according to your control system wiring diagram. Periodically check that the lever moves freely and that the roller is free from debris to maintain optimal performance.
What to consider before purchase
Verify the physical space available for mounting the rotary lever mechanism
Ensure the mechanical travel path of your equipment aligns with the switch's operating range
Confirm that the electrical load requirements are compatible with the switch contact ratings
Usage recommendations
Regularly inspect the roller and lever for signs of mechanical wear and ensure that the mounting hardware remains tight to prevent misalignment during continuous operation.

## FAQ

### How much does the Siemens 3SE51120CH01 Position Switch cost, and is it available for purchase?

The price is 81.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 21 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 31.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Siemens 3SE51120CH01 Position Switch be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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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