# Siemens 3RH2122-4LB40-0LA0 Contactor Auxiliary Contact Block

The Siemens 3RH2122-4LB40-0LA0 is a high-quality auxiliary contact block designed for industrial automation control systems. This reliable component ensures seamless integration into complex electrical circuits, providing essential switching functions for enhanced operational safety and efficiency. Its robust construction makes it ideal for demanding environments.

Engineered for precise control applications, the Siemens 3RH2122-4LB40-0LA0 offers dependable performance in automation use. It is a critical element for building robust control systems, offering stable voltage and current handling capabilities. This contact block is designed to work seamlessly with Siemens contactors, ensuring optimal system performance and protection features.

-   **Reliable Performance** for critical industrial operations
-   **Durable Construction** built for demanding environments
-   **Seamless Compatibility** with Siemens control systems
-   **Enhanced Safety** with dependable switching functions

### Specifications:

Auxiliary Contact Block Type: 1 NO 1 NC  
Voltage Rating: Up to 690V  
Current Rating: Up to 10A

Trust in the proven reliability of Siemens industrial automation products for your most critical applications. Explore the Siemens 3RH2122-4LB40-0LA0 for superior control and system integrity. Contact us to learn more.

## Details

- **Price:** 999.0 USD
- **Vendor:** Siemens
- **Type:** Industrial Automation > Control Components > Contactors
- **Tags:** Auxiliary Contact Block, Control Systems, Electrical Components, Industrial Automation, Siemens, Siemens 3RH2122-4LB40-0LA0

## Variants

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

## Images

- Siemens 3RH2122-4LB40-0LA0 Contactor Auxiliary Contact Block-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/siemens-3rh2122-4lb40-0la0-contactor-block)
> Updated: 2026-10-12