# Siemens 3TH2040-0BB4 Contactor Relay 24 VDC Screw Terminal

Enhance your industrial control systems with the Siemens **3TH2040-0BB4** a reliable contactor relay designed for efficient **DC operation**. This component is crucial for applications requiring precise switching and dependable performance in demanding environments. It offers a robust solution for automating processes and ensuring operational continuity.

Engineered for **24 VDC** power systems the Siemens **3TH2040-0BB4** provides essential control functionality. Its **screw terminal** connections ensure secure and straightforward integration into existing automation setups and control panels. This relay is built to withstand continuous operation making it ideal for critical industrial automation tasks.

What sets this Siemens contactor relay apart is its straightforward integration and robust build quality. It is perfect for automation engineers and maintenance professionals who need dependable components for their control circuits. Reliable switching ensures your automated processes run smoothly.

### Key Features:

-   **DC Operation**: Optimized for 24 VDC power supplies.
-   **Screw Terminal Connections**: Ensures secure and easy wiring.
-   **High Reliability**: Built for consistent performance in industrial settings.
-   **Compact Design**: Facilitates integration into control panels.
-   **Siemens Quality**: Trusted engineering for automation solutions.

### Specifications:

-   Brand Siemens
-   Part Number 3TH2040-0BB4
-   Voltage Rating 24 VDC
-   Terminal Type Screw Terminal
-   Operation Type DC

Trust in Siemens for your automation needs. The **Siemens 3TH2040-0BB4** contactor relay offers the performance and dependability you expect for your industrial automation systems. Secure yours today to ensure operational excellence.

## Details

- **Price:** 999.0 USD
- **Vendor:** Siemens
- **Type:** Industrial Automation > Control Components > Relays
- **Tags:** 24 VDC, Contactor Relay, Control Components, DC Operation, Industrial Automation, Screw Terminal, Siemens, Siemens 3TH2040-0BB4

## Variants

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

## Images

- Siemens 3TH2040-0BB4 Contactor Relay 24 VDC Screw Terminal-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/siemens-3th2040-0bb4-contactor-relay)
> Updated: 2026-09-21