# Siemens Sirius 3RH1140-1BB40 Contactor Relay - 10A 690V

The **Siemens Sirius 3RH1140-1BB40 Contactor Relay** is a crucial electrical component, designed for efficient and reliable performance in industrial automation systems. This relay, part of the renowned Siemens Sirius series, is engineered for durability and precision, ensuring seamless operation in demanding environments. Ideal for various applications, it is a key element in controlling and protecting electrical circuits.

This **contactor relay** meets the stringent IEC/EN 60947-5-1 standards. It features an AC-12 rating of 10A and a Ui rating of 690V, making it suitable for a wide range of voltage requirements. The **Siemens Sirius 3RH1140-1BB40** is capable of handling 10A at 600 VAC with auxiliary contacts rated at A600/P600. Manufactured in Germany, this relay reflects Siemens' dedication to quality and innovation.

Key Features:

-   **High-Quality Construction:** Ensures long-lasting performance and reliability.
-   **Wide Voltage Compatibility:** Suitable for various electrical systems with a Ui rating of 690V.
-   **Efficient Performance:** Designed for smooth and reliable control of electrical circuits.
-   **Durable Design:** Built to withstand the rigors of industrial environments.
-   **Easy Integration:** Compatible with instruction order number 3ZX1012-0RH11-1AA1.

Specifications:

-   AC-12 Rating: 10A
-   Ui Rating: 690V
-   Auxiliary Contacts: A600/P600
-   Wire Connection Temperature: 75°C (Cu)

Enhance the efficiency and safety of your industrial systems with the **Siemens Sirius 3RH1140-1BB40 Contactor Relay**. Its robust design and precision engineering ensure reliable performance, making it an essential component for any automated system. Trust in Siemens for superior quality and performance in your electrical applications. For any inquiries, please contact us at [info@ramautomations.com](mailto:info@ramautomations.com).

## Details

- **Price:** 999.0 USD
- **Vendor:** Siemens
- **Type:** Industrial Automation > Electrical Components > Contactors & Relays
- **Tags:** 3RH1140-1BB40, 690V relay, contactor relay, electrical systems, German made relay, industrial automation, power control, Siemens

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| 3RU1146-4JB1 / USED | 999.00 USD | In stock |

## Images

- Siemens Sirius 3RH1140-1BB40 Contactor Relay - 10A 690V-Ram Automations

---

> Source: [Ram Automations](https://ramautomations.com/products/siemens-sirius-3rh1140-1bb40-relay)
> Updated: 2026-09-18