# Siemens 3RH2140-2BM40-1AA0 Auxiliary Contactor Relay

The **Siemens 3RH2140-2BM40-1AA0** is a high-performance auxiliary contactor relay designed for robust industrial automation applications. This essential component ensures reliable control and signaling within complex electrical systems, offering superior operational efficiency and integration capabilities for modern manufacturing environments. Its advanced design provides for seamless incorporation into existing control panels and systems.

Engineered for demanding industrial settings the **Siemens 3RH2140-2BM40-1AA0** operates with precision in control circuits. It is ideal for tasks requiring dependable switching and interlocking functions within automation systems. This relay is built to withstand harsh operating conditions ensuring long-term stability and performance crucial for continuous industrial operations. It plays a key role in maintaining the integrity of control sequences.

-   **High Reliability**: Ensures consistent performance in critical automation tasks.
-   **Durable Construction**: Built to withstand industrial environments for extended lifespan.
-   **Seamless Integration**: Easily fits into existing Siemens control systems and panels.
-   **Efficient Operation**: Provides precise and responsive control for automation processes.

### Specifications:

Voltage Rating: \[Specify Voltage if available\]

Current Rating: \[Specify Current if available\]

Contact Configuration: \[Specify Configuration if available\]

**Siemens 3RH2140-2BM40-1AA0** applications include motor control interlocking and signaling in manufacturing plants and process automation. Trust in Siemens for dependable industrial control solutions.

## Details

- **Price:** 999.0 USD
- **Vendor:** Siemens
- **Type:** Industrial Automation > Control Components > Relays
- **Tags:** Automation Components, Auxiliary Relay, Control Systems, Industrial Control, Siemens 3RH2140-2BM40-1AA0, Siemens Contactor Relay

## Variants

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

## Images

- Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/siemens-3rh2140-2bm40-1aa0-contactor-relay)
> Updated: 2026-09-01