# SIEMENS SIRIUS 3RW4073-6BB34 Soft Starter S12 205A 150hp 460V

Introducing the **SIEMENS SIRIUS 3RW4073-6BB34** soft starter, a premier solution for industrial motor control. This **S12** series soft starter is engineered to provide smooth, reliable motor operation in demanding applications such as pumps, fans, and compressors. Its advanced design ensures optimal starting and stopping sequences, significantly reducing mechanical stress on equipment and extending operational life. For professionals seeking dependable motor control, the **SIEMENS 3RW4073-6BB34** offers exceptional performance and protection.

The **SIEMENS SIRIUS soft starter** boasts a robust **205A** current rating and is designed for **460V** systems, making it ideal for high-power motors up to 150hp. It incorporates essential protection features including overload detection, phase loss monitoring, and adjustable current limits to safeguard your valuable machinery. This ensures consistent performance and minimizes downtime in critical industrial automation processes. The integration of these protective elements makes the **3RW4073-6BB34** a vital component for maintaining operational integrity and efficiency.

-   **Smooth Motor Control**: Features ramp-up and ramp-down for gentle motor starts and stops.
-   **Advanced Protection**: Includes overload, phase loss detection, and adjustable current limits.
-   **Durability**: Built for harsh industrial environments ensuring long-term reliability.
-   **Ease of Integration**: Screw terminals facilitate simple and secure connections within automation systems.
-   **Efficiency Focus**: Designed to optimize motor performance and reduce energy consumption.

### Specifications

**Brand** SIEMENS  
**Series** SIRIUS S12  
**Part Number** 3RW4073-6BB34  
**Rated Current** 205A  
**Motor Power** 150hp at 460V  
**Voltage Rating** 460V  
**Control Voltage** 24V AC/DC

Trust the **SIEMENS SIRIUS 3RW4073-6BB34** for your critical industrial automation needs. Its proven reliability and advanced features make it a superior choice for enhancing motor performance and protecting your investment. Upgrade your motor control strategy with this high-performance soft starter today.

## Details

- **Price:** 999.0 USD
- **Vendor:** SIEMENS
- **Type:** Industrial Automation > Motor Control > Soft Starters
- **Tags:** 150hp 460V starter, 205A motor starter, 3RW4073-6BB34, automation components, industrial motor control, Ram Automations, SIEMENS SIRIUS 3RW4073-6BB34, SIEMENS soft starter, SIRIUS S12

## Variants

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

## Images

- SIEMENS SIRIUS 3RW4073-6BB34 Soft Starter S12 205A 150hp 460V-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/siemens-3rw4073-6bb34-soft-starter)
> Updated: 2026-09-30