# Siemens 3UN2131 0AN7 Thermistor Motor Protection Relay - 6A

Protect your motors with the reliable **Siemens 3UN2131 0AN7** Thermistor Motor Protection Relay, designed for superior performance in industrial applications. This relay, also known as the **3Un21 G/9942** model, offers robust protection against overloads and short circuits, ensuring the smooth and efficient operation of your machinery. Ideal for use in a variety of settings, the **Siemens 3UN2131 0AN7** is a crucial component for safeguarding your valuable equipment.

This relay operates at a voltage rating of 220-240V and a frequency of 50/60Hz, certified to Vde 0660/ Iec 34-11 standards, ensuring long-lasting performance. With a DC13 rating of 2A/24V and an AC15 rating of 6A/120V, it provides versatile protection capabilities. The 1No+1Nc configuration allows for flexible wiring options, simplifying installation. Manufactured in Germany, the **Siemens 3UN2131 0AN7** is built to withstand demanding environments, offering reliable protection with a maximum current rating of 6A. Is the **Siemens 3UN2131 0AN7** suitable for my motor? Yes, it is designed for a wide range of motor applications.

**Key Features:**

-   **Thermistor Motor Protection:** Safeguards motors against overheating.
-   **High Voltage Compatibility:** Operates at 220-240V and 50/60Hz.
-   **Versatile Ratings:** Includes DC13 and AC15 ratings for various applications.
-   **Easy Installation:** Features a 1No+1Nc configuration for flexible wiring.
-   **Durable Construction:** Made in Germany to ensure quality and reliability.

**Specifications:**

-   Model: 3UN2131 0AN7
-   Voltage: 220-240V
-   Frequency: 50/60Hz
-   DC13 Rating: 2A/24V
-   AC15 Rating: 6A/120V
-   Configuration: 1No+1Nc
-   Maximum Current: 6A
-   Weight: 190 Gm

Trust the **Siemens 3UN2131 0AN7** to protect your motors with its robust design and reliable performance. This relay is an essential component for any industrial or automation system. Ensure the longevity and efficiency of your motors by integrating the **Siemens 3UN2131 0AN7** into your operations. For more information, please contact us at [info@ramautomations.com](mailto:info@ramautomations.com).

## Details

- **Price:** 999.0 USD
- **Vendor:** Siemens
- **Type:** Industrial Automation > Motor Protection > Relays
- **Tags:** 3UN2131 0AN7, industrial automation, motor overload protection, motor protection relay, Siemens, thermistors

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Used | 999.00 USD | In stock |

## Images

- Siemens 3UN2131 0AN7 Thermistor Motor Protection Relay - 6A-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/siemens-3un2131-0an7-thermistor-relay)
> Updated: 2026-09-19