SIEMENS 3RW4435-6BC44 SIRIUS Soft Starter Values At 400 V :

SIRIUS soft starter Values at 400 V, 40 °C standard: 134 A, 75 kW Inside-delta: 232 A, 132 kW 200-460 V AC, 230 V AC Screw terminals !!! Phased-out product !!! Successor is SIRIUS 3RW5, Preferred successor type is >>3RW5535-6HA14<<.

The Siemens 3RW4435-6BC44 is a high-performance soft starter designed for controlling the acceleration and deceleration of three-phase motors in industrial applications. It provides smooth, stepless starting and stopping, reducing mechanical stress on motors and connected loads. Part of the SIRIUS 3RW44 series, this soft starter supports advanced functions like torque control, voltage ramp, and current limiting, making it ideal for pumps, fans, compressors, and conveyors. Its compact design and integrated bypass contactor optimize energy efficiency during operation.

Technical Specifications:

Rated Operational Current (Ie): 134 A (adjustable up to 356 A for specific configurations)

Control Voltage: AC 230 V (other voltages available for global applications)

Motor Power Range: Up to 75 kW (400 V AC-3)

Voltage Range: 200–690 V AC (main circuit)

Frequency Range: 50/60 Hz

Soft Start Modes: Torque control, voltage ramp, current limit, and pump stopping

Communication: Optional PROFIBUS DP module for integration into automation systems

Protection: Electronic motor overload protection, phase failure monitoring, and thermal overload protection

Mounting: DIN rail or screw mounting

Approvals: CE, UL, CSA, RoHS-compliant

Ambient Temperature: -25°C to +60°C (derating applies above 40°C)

Dimensions (L x W x H): 323 mm x 336 mm x 224 mm

Weight: Approximately 4.98 kg

Packing & Delivery:

1)100% brand New and Original Factory Seal!

2)Warranty: 1 year

3)Package: Original packing with cartons.

4)Delivery time: Shipped in 3-7 days after payment

5) All the goods will be tested before shipment.

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