# Siemens 3RH1911-1MA20 Auxiliary Contact Block - Front Mounting

The **Siemens 3RH1911-1MA20** auxiliary contact block is designed for seamless front mounting in industrial automation systems. This unit enhances control circuits and signaling reliability within Siemens SIRIUS contactor setups. It provides dependable performance in demanding industrial environments.

This auxiliary contact block features a **DIN EN 50005** standardized connection, ensuring safe and compatible installation. Ideal for motor control centers and automation systems, it offers quick snap-on mounting and robust electrical connections for consistent operation.

**Key Features:**

-   **Front-mounted** for easy installation
-   Provides reliable **NO auxiliary contacts**
-   **DIN EN 50005** compliant connection
-   Compact, **snap-on modular design**
-   Ensures **high reliability** in control systems

**Specifications:**

-   Part Number: **3RH1911-1MA20**
-   Contact Configuration: 2 NO (normally open)
-   Mounting: Front mounting
-   Standard: DIN EN 50005

The **Siemens 3RH1911-1MA20** auxiliary contact block ensures reliable and efficient control circuit expansion. Trust in Siemens engineering for consistent signaling and dependable performance in your automation systems. Contact us today to enhance your industrial setup.

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 Contact Block
- **Tags:** 3RH1911-1MA20, auxiliary contact block, control systems, DIN EN 50005, front mounting, Siemens

## Variants

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

## Images

- Siemens Bloco contactos auxiliares montagem frontal DIN 50 005 3RH1911-1MA20

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> Source: [Ram Automations](https://ramautomations.com/products/siemens-3rh1911-1ma20-aux-contact-block)
> Updated: 2026-09-01