Overview of Siemens 3RW4038-2BB04
Shop genuine Siemens 3RW4038-2BB04 online for your automation system. The Siemens SIRIUS 3RW4038-2BB04 is a robust electronic soft starter designed for smooth acceleration and deceleration of three-phase motors up to 37 kW (50 HP) at 400V. This factory-grade component is specially engineered to reduce mechanical stress and power loss during operation, while providing reliable motor protection. Featuring a compact and clearly arranged control panel, the 3RW4038-2BB04 is ideal for use in demanding industrial environments, including those requiring explosion-proof motor starts with “increased safety” type of protection (EEx e). Buy Siemens 3RW4038-2BB04 today from LeadTime.ca for fast worldwide delivery and seamless integration into your automation projects.
Key Features of Siemens 3RW4038-2BB04
- Rated for motors up to 37 kW at 400V, 72A continuous current
- Wide supply voltage range: 200-480V AC
- Integrated bypass contact system reduces power loss
- Adjustable trip classes and integrated diagnostics for enhanced protection
- Spring-loaded terminals for fast and secure wiring
- Control voltage: 24V AC/DC
- Compact DIN rail mounting with IP00/IP20 enclosure options
- Operates in ambient temperatures from -25°C to 60°C
- Supports external reset and features auxiliary contacts (B300/R300)
- Suitable for starting explosion-proof motors
Technical Specs of Siemens 3RW4038-2BB04
Explore Siemens 3RW4038-2BB04 technical data for detailed parameters before installation.
| Parameter |
Value |
| Max. Motor Power |
37 kW (50 HP) |
| Rated Current |
72A |
| Supply Voltage |
200–480V AC |
| Control Voltage |
24V AC/DC |
| Mounting |
DIN rail |
| Enclosure |
IP00/IP20 |
| Operating Temp |
-25°C to 60°C |
| Dimensions (HxWxD) |
144 x 55 x 170 mm |
| Auxiliary Contacts |
B300/R300 |
| Starting/Stopping Time |
Adjustable, 0–20s |
Applications / Use Case
This Siemens 3RW4038-2BB04 is commonly used in industrial automation worldwide, particularly in process control, machine automation, production lines, packaging, and conveyor operations. It is ideal for applications requiring gentle motor starts and stops, such as pumps, fans, compressors, and machinery with high inertia loads. Its integrated diagnostics and adjustable trip classes make it a versatile solution for both standard and explosion-proof motor control cabinets. Read our Siemens 3RW4038-2BB04 review for real-world feedback from automation professionals.
Price & Availability
Get updated on Siemens 3RW4038-2BB04 pricing and stock status online through LeadTime.ca.
Why Order from LeadTime.ca
All products on LeadTime.ca are genuine, original OEM, and supplied by trusted distributors. Each Siemens 3RW4038-2BB04 is factory-tested and comes with full manufacturer support, available for worldwide shipping. Order now for worldwide delivery and experience our fast, reliable service backed by expert technical support.
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