# Position switch Siemens 3SE53120SD11 — mechanical limit switch, single actuator

**URL:** https://aio.lv/en/product--siemens-3se53120sd11--3434490
**Data updated:** 2026-02-12 09:51 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** Siemens
**Manufacturer code:** 3SE53120SD11
**EAN:** 4011209682955
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 275.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 228.09 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3se53120sd11--3434490

## 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 | 1.99 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Siemens Position Switch 3SE53120SD11 is a mechanical limit/position switch designed to detect and signal the position of moving machine parts. It features a single actuator configuration suitable for industrial automation tasks such as conveyor, valve or actuator position monitoring. The device provides reliable switching feedback for control systems and is intended for installation in electrical control panels or machinery.

## Long description

Siemens Position switch 3SE53120SD11 is a mechanical limit switch with a single actuator designed to detect and transmit the position of moving machine elements. The device provides a defined electrical contact change when an actuator is operated, enabling reliable feedback for control circuits in industrial automation. Its compact construction allows integration into switchgear, conveyor systems, valves and various types of machinery where simple mechanical position sensing is required.
Advantages
The switch offers precise actuation feedback from a single actuator mechanism, a robust mechanical design for repeated operations, and compatibility with standard control wiring practices. It supplies clear NO/NC contact transitions for PLCs and relay logic, and its form factor supports mounting in control panels or on machinery housings. The mechanical construction minimizes electronics dependence, providing a straightforward solution for position detection in industrial environments.
Suitable for
 Position detection on conveyors and material handling equipment
 End-of-travel sensing on pneumatic or hydraulic actuators
 Monitoring valve open/closed positions in process systems
 Limit switching in machine tools and assembly equipment
Key specifications
 Type: mechanical limit/position switch with single actuator
 Actuator: single mechanical actuator suitable for direct contact operation
 Contact arrangement: change-over contacts (normally open / normally closed transitions)
 Mounting: panel or machine-mount compatible form factor for industrial installations
 Operating principle: mechanical contact actuation with defined switching point
 Environmental suitability: designed for industrial indoor use in control panels and machinery
How to use
Install the mechanical limit switch at the location where a moving part will reliably engage the actuator. Secure the unit using the recommended mounting points and ensure the actuator travel corresponds to the required switch activation point. Wire the switch contacts to the control circuit following the system documentation and observe correct polarity and protective measures for the connected control devices. After installation, verify proper operation by manually actuating the mechanism and confirming the expected contact status at the control input.
Usage recommendations
Position the actuator so that engagement is positive and avoids partial or glancing contact; perform periodic visual inspections and functional checks, and ensure wiring and protective devices match the application's voltage and current requirements.

## FAQ

### How much does the Position switch Siemens 3SE53120SD11 cost, and is it available for purchase?

The price is 275.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 12 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, Installment. All transactions are 100% secure and encrypted.

### Can Position switch Siemens 3SE53120SD11 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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