# Siemens 3RH1921-1DA11 Auxiliary Contact Block - Industrial Automation

The **Siemens 3RH1921-1DA11** Auxiliary Contact Block is a crucial component for industrial automation, designed to enhance the control and monitoring capabilities of electrical circuits. This contact block, essential for use in a variety of industrial applications, ensures efficient and safe operation within your systems. It is engineered to meet the demands of modern industrial environments, offering reliable performance and easy integration.

This **Siemens** contact block, with its part number **3RH1921-1DA11**, conforms to the Gb14048.5/50Hz Iec/En. 60947-5-1 standards and is rated with a Ui of 500V. The auxiliary contacts A300/Q300 are rated for 10A/240V. Its compact design and lightweight nature, weighing only 50 grams, make installation straightforward and efficient. The **3RH1921-1DA11** is a versatile component for controlling and monitoring electrical circuits.

-   **Reliable Performance:** Ensures consistent operation in demanding industrial settings.
-   **Easy Installation:** Compact and lightweight design for seamless integration.
-   **High Compatibility:** Designed for use with a wide range of Siemens industrial products.
-   **Durable Construction:** Built to withstand the rigors of industrial environments.
-   **Safety Standards:** Complies with Gb14048.5/50Hz Iec/En. 60947-5-1 standards.

**Specifications**

-   Ui Rating: 500V
-   Auxiliary Contacts: A300/Q300
-   Current Rating: 10A/240V
-   Weight: 50 grams

The **Siemens 3RH1921-1DA11** contact block offers a dependable solution for your industrial control needs. Trust in the quality and performance of **Siemens** products to optimize your automation systems. Improve the efficiency and safety of your operations with this essential component. For inquiries, contact us at [info@ramautomations.com](mailto:info@ramautomations.com).

## Details

- **Price:** 999.0 USD
- **Vendor:** Siemens
- **Type:** Industrial Automation > Electrical Components > Contact Blocks
- **Tags:** 3RH1921-1DA11, auxiliary contact block, contact block, electrical circuits, industrial automation, industrial control, Siemens

## Variants

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

## Images

- Siemens 3RH1921-1DA11 Auxiliary Contact Block - Industrial Automation-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/siemens-3rh1921-1da11-auxiliary-contact)
> Updated: 2026-10-03