# Siemens 3RA1921-1DA00 Coupling Module - Mechanical Electrical Link

The **Siemens 3RA1921-1DA00** coupling module provides a reliable mechanical and electrical connection between 3RV circuit breakers and contactors. This module is essential for creating compact and efficient motor starter assemblies in industrial automation.

This **coupling module** ensures seamless integration within your control systems, enhancing both safety and performance. The **Siemens 3RA1921-1DA00** facilitates coordinated switching and protection, optimizing space in motor control centers and industrial control panels.

**Key Features:**

-   Provides mechanical and electrical coupling
-   Designed for Siemens 3RV circuit breakers
-   Ensures reliable motor starter operation
-   Compact design for efficient space utilization
-   Enhances system integration

**Specifications:**

-   Part Number: **3RA1921-1DA00**
-   Compatible with: Siemens 3RV circuit breakers and contactors
-   Size Compatibility: Frame size S3
-   Application: Motor control centers, automation systems

Trust the **Siemens 3RA1921-1DA00** for reliable performance and durability in your industrial automation systems. Upgrade your motor control setup today for enhanced efficiency and safety.

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

## Details

- **Price:** 999.0 USD
- **Vendor:** Ram Automations
- **Type:** Industrial Automation > Motor Control > Coupling Modules
- **Tags:** 3RA1921-1DA00, automation, circuit breaker, contactor, coupling module, motor control, S3, Siemens

## Variants

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

## Images

- Siemens Módulo ligação mecânica eléctrica entre disj. 3RV tam. 3RA1921-1DA00

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> Source: [Ram Automations](https://ramautomations.com/products/siemens-3ra1921-1da00-coupling-module)
> Updated: 2026-09-01