3RW4075-6BB35

The 3RW4075-6BB35 is designed for 400 to 600V AC high-voltage main circuits, paired with a 115V AC control power supply. It is commonly used in US standard panel wiring and has a rated current of 356A, which can support the smooth start of medium and large three-phase motors.

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Product photos of Siemens 3RW4075-6BB35 SIRIUS soft starter

Product Positioning

The 3RW4075-6BB35 is a model in the 3RW4075 series that supports high voltage levels from 400 to 600V AC. Its control voltage is 115V AC, making it suitable for three-phase motor starting applications when used with a US standard control panel.

Core Product Advantages and Features

High-voltage main circuit support

The main circuit can withstand 400 to 600V AC, making it suitable for industrial power distribution systems with higher voltage levels.

115V control power supply

The control voltage is designed to be 115V AC, which is convenient for connecting to the power supply of common control circuits in North America.

356A rated current

With a rated power of 250kW at 500V, it meets the starting current requirements of medium and large motors.

Built-in bypass and protection

It features bypass contacts and motor overload protection, improving reliability during long-term operation.

project	Specification
Rated current (40°C)	356 A
Rated current (50°C)	315 A
Rated current (60°C)	280 A
Main circuit voltage range	400–600V AC
Control power supply voltage	115V AC (50/60Hz)
Rated power (400V)	200 kW
Rated power (500V)	250 kW
Enclosure protection rating	IP00 (IP20 after capping)
Chassis dimensions (width × height × depth)	160×230×278mm
net weight	Approximately 9.025 kg
Terminal type	Screw terminals (auxiliary/control circuit)
Installation method	Screw fixing
Casing Specifications	S12

Recommend

3RW4075-6BB44

The 3RW4075-6BB44 has a rated current of 356A, corresponding to a voltage range of 200 to 460V AC and a control power supply of 230V AC. It has a built-in thyristor bypass system and motor overload protection, making it more energy-efficient and safer to operate.

3RW4074-6BB44

The 3RW4074-6BB44 has a rated current of 280A and is compatible with 200 to 460V AC and 230V AC control power supplies. It features an S12 chassis with screw terminal wiring, smooth start-up, and bypass power saving and overload protection mechanisms.

3RW4074-6BB35

The 3RW4074-6BB35 supports high-voltage main circuits from 400 to 600V AC, with a control power supply of 115V AC and a rated current of 280A. It is commonly used in large three-phase motor starting applications in North American standard switchboards.