# Siemens 3RB2113-4SB0 Overload Relay 3-12A Protection

Protect your motor systems with the reliable **Siemens 3RB2113-4SB0 Overload Relay**, a crucial component for industrial automation. This robust relay, also known as the **Siemens Sirius 3RB2113-4SB0 LO71122 \*E03\***, provides essential protection against overloads, ensuring the longevity and efficiency of your electrical equipment. Designed for a wide range of applications, this overload relay is a must-have for safe and effective motor control.

The **3RB2113-4SB0** operates at 24V DC with a current rating of 3-12A, adhering to IEC/EN 60947-4-1 standards. It features a 1NC/1NO contact configuration and a rated operational voltage of 690V at 50/60Hz. With an ultimate short-circuit breaking capacity of 6kV, this relay offers dependable protection. The auxiliary contacts are designed for continuous use, with a maximum operating temperature of 75°C. The **Overload Relay** is also ATEX certified for hazardous environments.

Key Features:

-   **Overload Protection**: Prevents motor damage from excessive current.
-   **Wide Voltage Compatibility**: Supports up to 600V AC at 50/60Hz.
-   **ATEX Certified**: Suitable for use in explosive gas atmospheres.
-   **Compact Design**: Lightweight at 210g for easy installation.
-   **Reliable Performance**: Ensures safe and efficient motor operation.

**Specifications**: This **Siemens 3RB2113-4SB0** relay has a trip class of B300/R300 and a torque rating of 9-10.3 lb.in. The **3RB2113-4SB0** is IP20 rated for protection against solid objects.

Trust the **Siemens 3RB2113-4SB0 Overload Relay** to safeguard your industrial and automation systems. Its robust design and reliable performance make it an ideal choice for ensuring the continuous operation of your motors. Choose **Ram Automations** for high-quality components and support. For any inquiries, contact us at [info@ramautomations.com](mailto:info@ramautomations.com).

## Details

- **Price:** 999.0 USD
- **Vendor:** Siemens
- **Type:** Industrial Automation > Motor Protection > Overload Relays
- **Tags:** 3-12A, 3RB2113-4SB0, ATEX certified, electrical components, industrial automation, motor protection, overload relay, Siemens, Siemens Sirius

## Variants

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

## Images

- Siemens 3RB2113-4SB0 Overload Relay 3-12A Protection-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/siemens-3rb2113-4sb0-overload-relay)
> Updated: 2026-10-03