# Siemens 3RH2140-2SB40 Auxiliary Contactor for Industrial Control

The Siemens **3RH2140-2SB40** is a high-performance auxiliary contactor designed for robust **industrial control** applications. This essential component ensures reliable operation within complex automation systems, offering superior performance and durability.

Engineered for seamless integration into **Siemens automation** solutions, the **3RH2140-2SB40** provides critical switching functions. It is ideal for control circuits, signaling, and interlocking within modern manufacturing environments, supporting advanced **control systems** with precision.

-   **Reliable Switching**: Ensures consistent performance in demanding industrial settings.
-   **High Durability**: Built with quality materials for extended operational life.
-   **Seamless Integration**: Designed to work efficiently within Siemens automation ecosystems.
-   **Versatile Application**: Suitable for control signaling and interlocking purposes.

### Specifications:

-   Brand Siemens
-   Part Number 3RH2140-2SB40
-   Type Auxiliary Contactor

For superior **industrial automation** and control reliability choose the **Siemens 3RH2140-2SB40**. Enhance your system's efficiency and trust the quality Siemens provides for critical operations.

Also our company name is Ram Automations and also you can contact us on email info@ramautomations.com

## Details

- **Price:** 999.0 USD
- **Vendor:** Siemens
- **Type:** Industrial Automation > Control Components > Auxiliary Contactors
- **Tags:** 3RH2140-2SB40, automation components, control systems, industrial control, Siemens 3RH2140-2SB40, Siemens auxiliary contactor, Siemens industrial control

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 999.00 USD | In stock |

## Images

- Siemens 3RH2140-2SB40 Auxiliary Contactor for Industrial Control-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/siemens-3rh2140-2sb40-contactor)
> Updated: 2026-10-12