# Siemens SIRIUS 3RT2027-1BB40 Power Contactor, 3-Pole, 32A, 24V DC, 1NO+1NC

**URL:** https://aio.lv/en/product--siemens-3rt2027-1bb40--1796336
**Data updated:** 2026-05-18 02:39 (EEST)
**Category:** Control Systems
**Manufacturer:** Siemens
**Manufacturer code:** 3RT2027-1BB40
**EAN:** 4011209790087
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 177.49 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 146.69 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3rt2027-1bb40--1796336

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

The Siemens SIRIUS 3RT2027-1BB40 is a high-performance 3-pole power contactor designed for reliable switching of electrical loads. Featuring a 32A rated current and a 24V DC control supply voltage, this S0 size contactor includes 1NO and 1NC auxiliary contacts. It is ideal for industrial automation, motor control, and power distribution systems requiring robust performance and long-term operational stability.

## Long description

The Siemens SIRIUS 3RT2027-1BB40 is a high-performance 3-pole power contactor engineered for the reliable switching of electrical loads in demanding industrial environments. This S0 size contactor is designed to handle a rated operational current of 32A and operates with a 24V DC control supply voltage. Equipped with integrated 1NO and 1NC auxiliary contacts, it provides essential feedback and control capabilities for complex electrical circuits, ensuring seamless integration into modern automation systems.
Advantages
This power contactor stands out due to its robust construction and high operational reliability, which are hallmarks of the Siemens SIRIUS series. Its compact S0 design allows for efficient use of space within control cabinets without compromising on performance. The device is built to withstand frequent switching cycles, offering long-term stability and reduced maintenance requirements in industrial applications. Furthermore, the inclusion of auxiliary contacts simplifies circuit design by providing necessary status monitoring signals directly from the contactor.
Suitable for
Industrial motor control systems
Power distribution and switching applications
Automation and control panels
Heating and lighting circuit management
This contactor may not be suitable for applications requiring AC control voltages, as this specific model is designed exclusively for 24V DC operation. Additionally, it is not intended for use in environments exceeding its specified current rating of 32A or in conditions that fall outside the standard industrial temperature and humidity ranges defined for this series.
Key specifications
Number of poles: 3
Rated operational current: 32A
Control supply voltage: 24V DC
Auxiliary contacts: 1NO + 1NC
Size: S0
Installation should be performed by qualified personnel in accordance with local electrical regulations. The contactor is typically mounted on a standard DIN rail or via screw mounting within an enclosure. Ensure that the control circuit is correctly wired to the A1 and A2 terminals and that the main power lines are securely connected to the power terminals, observing the correct torque settings to prevent loose connections.
What to consider before purchase
Verify that the 24V DC control voltage matches your existing control system requirements.
Ensure the 32A current rating is sufficient for the intended load.
Check available space in your control cabinet for the S0 frame size.
Confirm that the 1NO and 1NC auxiliary contact configuration meets your feedback signal needs.
For optimal performance and longevity, ensure the contactor is installed in a clean, dry environment and periodically inspect the terminal connections for tightness during routine maintenance cycles.

## FAQ

### How much does the Siemens SIRIUS 3RT2027-1BB40 Power Contactor cost, and is it available for purchase?

The price is 177.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 57 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 16.07.2026 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 SIRIUS 3RT2027-1BB40 Power Contactor 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

https://aio.lv/img/cache/product/1796336/47518673_large.webp