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Siemens 3RW4028-1BB04 | SIRIUS 3RW40 Soft Starter – 110A, 55 kW, 24V AC/DC Control, Size S6
Overview
The Siemens 3RW4028-1BB04 is a SIRIUS 3RW40 soft starter designed for three-phase motors up to 55 kW (400V). With a rated operational current of 110A, it offers smooth motor startup and shutdown, reducing mechanical stress and extending motor life. This model operates with a 24V AC/DC control voltage, features screw terminals, and comes in a Size S6 frame with an IP20 protection rating.
Key Features
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Rated Operating Current: 110A
-
Motor Power Rating: 55 kW @ 400V (AC-53a)
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Control Voltage: 24V AC/DC
-
Rated Operating Voltage: 200–480V AC, 3-phase
-
Start/Stop Control: Voltage ramp, current limiting, adjustable parameters
-
Integrated Bypass Contact System: Reduces power loss and heat generation
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Mounting: Panel mounting with screw terminals
-
Protection Class: IP20
-
Frame Size: S6
Technical Specifications
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Part Number: 3RW4028-1BB04
-
Series: SIRIUS 3RW40
-
Control Inputs: Start/stop digital input
-
Ambient Operating Temp: –25°C to +60°C (derating above 40°C)
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Dimensions (HxWxD): Approx. 325 × 140 × 170 mm
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Certifications: CE, UL, cULus, EAC, RoHS
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Application Category: AC-53a (for squirrel cage motors)
Applications
-
Pumps and compressors
-
Fans and blowers
-
Conveyors and mixers
-
HVAC systems
-
Industrial equipment requiring reduced inrush current
Why Choose the 3RW4028-1BB04?
-
High Capacity: Supports motors up to 55 kW
-
Soft Start & Stop: Reduces mechanical and electrical stress
-
Built-In Bypass: Increases efficiency and reduces heat
-
Reliable Control: 24V AC/DC input for flexible integration
-
Proven Siemens Quality: Robust design for industrial environments
Order Now
The Siemens 3RW4028-1BB04 soft starter is in stock and ready for worldwide shipping.
Description
Siemens 3RW4028-1BB04 | SIRIUS 3RW40 Soft Starter – 110A, 55 kW, 24V AC/DC Control, Size S6
Overview
The Siemens 3RW4028-1BB04 is a SIRIUS 3RW40 soft starter designed for three-phase motors up to 55 kW (400V). With a rated operational current of 110A, it offers smooth motor startup and shutdown, reducing mechanical stress and extending motor life. This model operates with a 24V AC/DC control voltage, features screw terminals, and comes in a Size S6 frame with an IP20 protection rating.
Key Features
-
Rated Operating Current: 110A
-
Motor Power Rating: 55 kW @ 400V (AC-53a)
-
Control Voltage: 24V AC/DC
-
Rated Operating Voltage: 200–480V AC, 3-phase
-
Start/Stop Control: Voltage ramp, current limiting, adjustable parameters
-
Integrated Bypass Contact System: Reduces power loss and heat generation
-
Mounting: Panel mounting with screw terminals
-
Protection Class: IP20
-
Frame Size: S6
Technical Specifications
-
Part Number: 3RW4028-1BB04
-
Series: SIRIUS 3RW40
-
Control Inputs: Start/stop digital input
-
Ambient Operating Temp: –25°C to +60°C (derating above 40°C)
-
Dimensions (HxWxD): Approx. 325 × 140 × 170 mm
-
Certifications: CE, UL, cULus, EAC, RoHS
-
Application Category: AC-53a (for squirrel cage motors)
Applications
-
Pumps and compressors
-
Fans and blowers
-
Conveyors and mixers
-
HVAC systems
-
Industrial equipment requiring reduced inrush current
Why Choose the 3RW4028-1BB04?
-
High Capacity: Supports motors up to 55 kW
-
Soft Start & Stop: Reduces mechanical and electrical stress
-
Built-In Bypass: Increases efficiency and reduces heat
-
Reliable Control: 24V AC/DC input for flexible integration
-
Proven Siemens Quality: Robust design for industrial environments
Order Now
The Siemens 3RW4028-1BB04 soft starter is in stock and ready for worldwide shipping.