# Siemens 3RT2017-2BB41 Power Contactor, 3-Pole, 12A, 24V DC, 1NO Auxiliary Contact, Size S00

**URL:** https://aio.lv/en/product--siemens-3rt20172bb41--1805511
**Data updated:** 2026-05-18 02:44 (EEST)
**Category:** Control Systems
**Manufacturer:** Siemens
**Manufacturer code:** 3RT20172BB41
**EAN:** 4011209785489
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The Siemens 3RT2017-2BB41 is a high-performance 3-pole power contactor designed for reliable switching of electrical loads. Featuring a 12A rated operational current and a 24V DC control supply voltage, this size S00 device includes one normally open (NO) auxiliary contact. It is engineered for industrial automation and motor control applications, ensuring durability and efficient performance in demanding electrical systems.

## Long description

The Siemens 3RT2017-2BB41 is a robust 3-pole power contactor engineered for the reliable switching of electrical loads in industrial environments. As a size S00 component, it offers a compact footprint while maintaining high performance standards for demanding automation and motor control tasks. Operating with a 24V DC control supply voltage and a 12A rated operational current, this device is built to provide consistent connectivity and long-term operational stability in various electrical configurations.
Advantages
This power contactor stands out due to its high reliability and compact design, which allows for efficient space utilization within control cabinets. The integration of a normally open auxiliary contact simplifies circuit monitoring and control logic. Furthermore, the device is designed for high switching frequency and durability, ensuring that it can withstand the rigors of continuous industrial operation without compromising performance or safety.
Suitable for
Industrial motor control systems
Automation and process control applications
Switching of resistive and inductive loads
Integration into control panels and distribution boards
When it may not be suitable
This contactor is not intended for applications requiring higher current ratings exceeding 12A or for AC control voltage systems. It is also not suitable for environments where the ambient temperature or vibration levels exceed the manufacturer's specified technical limits for size S00 components.
Key specifications
Number of poles: 3
Rated operational current: 12A
Control supply voltage: 24V DC
Auxiliary contacts: 1 normally open (NO)
Size: S00
How to use
Installation should be performed by qualified personnel in accordance with local electrical regulations. The contactor is designed for mounting on standard DIN rails or via screw mounting within a control enclosure. Ensure that the control circuit is connected to the 24V DC terminals and that the main power lines are securely fastened to the load terminals. Verify that the auxiliary contact is correctly wired to your control logic before energizing the system.
What to consider before purchase
Verify that the 24V DC control voltage matches your existing control system.
Ensure the 12A current rating is sufficient for your specific motor or load requirements.
Check the available space in your enclosure to accommodate the S00 size dimensions.
Confirm that the number of auxiliary contacts meets your feedback or interlocking needs.
Usage recommendations
Regularly inspect the terminal connections for tightness and ensure the contactor remains free from dust and moisture accumulation to maintain optimal performance and longevity.

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### 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?

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