# Siemens 3RA2120-4EE27-0BB4 Motor Starter Protection Relay

The **Siemens 3RA2120-4EE27-0BB4** is a high-performance motor starter protection relay designed for robust industrial automation applications. This essential component ensures reliable operation and safeguarding of electric motors in demanding environments. Its advanced technology offers superior protection against overload and phase imbalance, minimizing downtime and extending equipment lifespan. For professionals seeking dependable control solutions, the **Siemens 3RA2120-4EE27-0BB4** provides peace of mind.

Engineered for seamless integration into modern control systems, the **Siemens 3RA2120-4EE27-0BB4** features precise current and voltage monitoring capabilities. It is ideal for applications requiring accurate protection settings and quick response times, crucial for maintaining operational efficiency in industrial settings. This relay is a key element for ensuring the safety and longevity of motor-driven machinery.

-   **High Reliability** ensuring consistent performance in industrial automation.
-   **Advanced Protection** against overload and phase imbalance for motor safety.
-   **Efficient Operation** contributing to reduced energy consumption and costs.
-   **Broad Compatibility** with various Siemens control systems and components.
-   **Durable Construction** built to withstand harsh industrial conditions.

## Details

- **Price:** 999.0 USD
- **Vendor:** Siemens
- **Type:** Industrial Automation > Motor Control > Motor Protection Relays
- **Tags:** 3RA2120-4EE27-0BB4, Automation Components, Industrial Control, Motor Protection, Motor Starter Protection Relay, Siemens, Siemens Relay

## Variants

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

## Images

- Siemens 3RA2120-4EE27-0BB4 Motor Starter Protection Relay-Ram Automations

---

> Source: [Ram Automations](https://ramautomations.com/products/siemens-3ra2120-4ee27-0bb4-relay)
> Updated: 2026-10-12