# Auxiliary Switch Block 3RH1921-1HA22 | Siemens Industrial

The **Siemens Auxiliary Switch Block 3RH1921-1HA22** is an essential component designed for seamless integration with Siemens industrial automation products. This switch block is crucial for enhancing the functionality and safety of electrical systems, providing reliable performance in demanding environments. Ideal for various industrial applications, this auxiliary switch block is engineered to meet stringent quality standards and deliver consistent results. Its robust design ensures durability and longevity, making it a dependable choice for your automation needs.

This **3RH1921-1HA22** model features 2S+2Ö/2NO+2NC contacts, a UI of 690V, and a current rating of 10A, making it suitable for a wide range of industrial settings. The compact design allows for easy integration into existing systems, enhancing overall performance and operational efficiency. Designed for use in industrial control panels, this switch block offers a reliable solution for monitoring and controlling critical circuits. The **Siemens Auxiliary Switch Block** is a testament to Siemens' commitment to quality and innovation in the field of industrial automation.

-   **Enhanced Safety:** Provides reliable switching capabilities to improve system safety.
-   **Versatile Application:** Suitable for a variety of industrial and automation applications.
-   **Durable Design:** Built to withstand harsh industrial environments, ensuring long-lasting performance.
-   **Easy Installation:** Designed for quick and straightforward integration into existing systems.
-   **High Performance:** Offers a UI of 690V and a current rating of 10A, ensuring efficient operation.

With the **Siemens Auxiliary Switch Block 3RH1921-1HA22**, you can ensure the smooth and reliable operation of your industrial systems. This product is a reliable component for your industrial control panels. Enhance your automation systems with Siemens, a brand known for its commitment to quality and innovation. For more information or to discuss your specific requirements, please contact us at [info@ramautomations.com](mailto:info@ramautomations.com).

## Details

- **Price:** 999.0 USD
- **Vendor:** Siemens
- **Type:** Industrial Automation > Electrical Components > Auxiliary Switches
- **Tags:** 3RH1921-1HA22, auxiliary switch block, control panel component, electrical switch, industrial automation, Siemens

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| New | 999.00 USD | In stock |

## Images

- Auxiliary Switch Block 3RH1921-1HA22 | Siemens Industrial-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/siemens-3rh1921-1ha22-auxiliary-switch)
> Updated: 2026-10-02