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3RW3027-1BB04

The 3RW3027-1BB04 is a 3-phase AC soft starter from Siemens, designed for motors up to 15 kW at 400 V AC or 18.5 kW at 500 V AC. It supports voltage ranges of 380–480 V (for 15 kW) and 500–690 V (for 18.5 kW), with current ratings of 32 A (400 V) and 25 A (690 V).

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3RW3027-1BB04 Brief English Parameters
General Information
Product Family: Siemens 3RW30 Soft Starter
Type: 3-phase AC soft starter for motors
Order Code: 3RW3027-1BB04
Rated Power: 15 kW (400 V AC), 18.5 kW (500 V AC)
Key Technical Specs
Voltage Range:
380–480 V AC (50/60 Hz) for 15 kW
500–690 V AC (50/60 Hz) for 18.5 kW
Current Rating: 32 A (400 V), 25 A (690 V)
Control Methods:
Voltage ramp start, current limit start
Soft stop, skip cycle start
Protection Features:
Overload, phase loss, short circuit, overvoltage/undervoltage
Mechanical/Environmental
Dimensions: 175 x 132 x 170 mm (WxHxD)
Mounting: 35 mm DIN rail or panel mount
Operating temperature: -20°C to +50°C (derating above 40°C)
Protection class: IP20