# Siemens 3SU1000-4BF01-0AA0 Key-Operated Switch Front Element, RONIS SB30, 2-Position

**URL:** https://aio.lv/en/product--siemens-3su1000-4bf01-0aa0--3274512
**Data updated:** 2026-05-18 02:54 (EEST)
**Category:** Control Systems
**Manufacturer:** Siemens
**Manufacturer code:** 3SU1000-4BF01-0AA0
**EAN:** 4011209962521
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 24.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 20.65 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3su1000-4bf01-0aa0--3274512

## 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 3SU1000-4BF01-0AA0 is a round key-operated switch front element designed for 22mm mounting holes. Featuring the RONIS SB30 lock system, this 2-position switch (O-I) is built for industrial control panels and automation systems. It provides reliable mechanical switching and includes two keys for secure operation. The durable plastic construction ensures long-term performance in various industrial environments.

## Long description

The Siemens 3SU1000-4BF01-0AA0 is a professional-grade key-operated switch front element designed for integration into industrial control panels and automation systems. Engineered for standard 22mm mounting holes, this component features the reliable RONIS SB30 locking mechanism, providing a secure and robust solution for manual switching operations. The device is configured as a 2-position switch with O-I functionality, ensuring clear and intuitive control for operators in demanding industrial environments.
Advantages
This key-operated switch offers exceptional durability due to its high-quality plastic construction, which is resistant to the rigors of daily industrial use. The inclusion of the RONIS SB30 lock system provides an added layer of security, preventing unauthorized access or accidental operation of critical machinery. Its standardized design ensures seamless compatibility with existing control panel layouts, while the ergonomic 2-position interface allows for straightforward and reliable switching between states.
Suitable for
Industrial control panels and automation cabinets
Machine safety and emergency stop override systems
Access control for sensitive equipment
Process control environments requiring secure manual switching
This switch may not be suitable for outdoor environments exposed to extreme weather conditions or high-pressure washdown areas without additional protective enclosures. It is also not intended for applications requiring more than two switching positions or complex key-removal logic beyond the standard O-I configuration.
Key specifications
Mounting diameter: 22 mm
Lock system: RONIS SB30
Switch positions: 2 (O-I)
Material: Durable plastic
Included accessories: 2 keys
To install the switch, insert the front element into a standard 22mm hole on your control panel and secure it using the provided mounting hardware. Once installed, the switch can be operated by inserting the key and rotating it to the desired position. Ensure that the electrical contact blocks are correctly attached to the rear of the front element to complete the circuit integration.
What to consider before purchase
Verify that your control panel has a standard 22mm mounting aperture.
Confirm that the RONIS SB30 key profile meets your facility's security requirements.
Ensure the 2-position O-I functionality aligns with your specific circuit control needs.
For optimal performance and longevity, ensure the switch is kept clean and free of debris. Regularly inspect the key and lock mechanism for smooth operation and replace the keys if they show signs of excessive wear.

## FAQ

### How much does the Siemens 3SU1000-4BF01-0AA0 Key-Operated Switch Front Element cost, and is it available for purchase?

The price is 24.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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/3274512/51445912_large.webp