Product details
Powerful Motor Control Solution for Industrial Applications
Discover the 3RW4076-6BB44 SIRIUS soft starter from Siemens, designed for reliable motor control. This advanced device handles 432A at 40°C and supports motors up to 250kW/400V. The integrated bypass contact system and thyristor technology ensure efficient performance. Note: This product has been phased out, with 3RW5076-6AB14 as its preferred successor.
Key Technical Specifications
- Brand: Siemens SIRIUS
- Model: 3RW4076-6BB44
- Rated operational current: 432A at 40°C
- Motor power rating: 250kW at 400V
- Operating voltage range: 200-460V AC
- Control supply voltage: 230V AC
- Operating frequency: 50-60Hz
- Protection class: IP00
- Ambient temperature: -25°C to +60°C
Advanced Protection Features
- Integrated intrinsic device protection
- Comprehensive motor overload protection
- External reset capability
- Adjustable current limitation
- Continuous operating current: 115% at 40°C
Physical Dimensions and Mounting
- Device size: S12 (160mm width × 230mm height × 278mm depth)
- Mounting method: Screw fixing
- Required spacing: 100mm above, 5mm sides, 75mm below
- Maximum wire length: 300 meters
Connection Options
- Main circuit: Busbar connection
- Auxiliary/control circuit: Screw terminals
- Contact configuration: 2 NO + 1 CO contacts
- Conductor cross-sections: 70-300mm² for main contacts
- AWG compatibility: 2/0 to 600 kcmil
Environmental Specifications
- Installation altitude: Up to 5000 meters
- Operating temperature range: -25°C to +60°C
- Storage temperature: -40°C to +80°C
- Environmental category: 3K6, 3C3, 3S2, 3M6
Shipping and Packaging
- Shipping carriers: FedEx, UPS, DHL
- Package includes: Soft starter unit, documentation
- Fast worldwide delivery available
Frequently Asked Questions
- What replacement model is available?
The preferred successor is Siemens 3RW5076-6AB14, offering enhanced features.
- Can this starter handle high-current applications?
Yes, it supports up to 432A at 40°C, making it suitable for heavy-duty motors.
- What mounting positions are acceptable?
With additional fan: vertical mounting surface ±90° rotatable, ±22.5° tiltable.
- Is motor overload protection included?
Yes, the device features adjustable motor overload protection from 207A minimum.
- What maintenance does this starter require?
Regular inspection of connections and cooling paths ensures optimal performance.
Professional Support Available
For technical specifications or purchasing information, contact our experts:
- Email: sales@powergearx.com
- Phone: +86 18030005825
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