3RW4055-6BB35
The Siemens 3RW4055-6BB35 soft starter uses thyristor phase control to smoothly start three-phase motors. It has built-in bypass contacts to reduce heat generation and energy consumption during full-speed operation, and has motor overload protection. It is suitable for common industrial loads such as pumps, fans, and conveyors.
Product Positioning
The 3RW4055-6BB35 is one of the Siemens SIRIUS 3RW40 series soft starters. It achieves smooth motor starting through thyristor phase control and shares the same core control architecture as other models in the same series.
Core Product Advantages and Features
Smooth Start-up Control
The motor start-up and stop are controlled by voltage ramping to reduce the impact of surge current on the system.
Built-in bypass contact
When the motor is running at full speed, it is powered by the bypass contact to help reduce the temperature rise of the thyristor during long-term conduction.
Motor overload protection
Built-in electronic motor thermal overload protection reduces the risk of damage from abnormal motor operation.
Adjustable startup parameters
The start-up ramp time and current limit value can be adjusted according to the on-site load characteristics.
<td style="padding:10px
Recommend
Read More
3RW4055-6BB44
The 3RW4055-6BB44 is a Siemens SIRIUS simplified soft starter that uses voltage ramp control to reduce motor starting surge current, thereby reducing the impact on the power supply system and mechanical structure. It has built-in bypass contacts and overload protection functions and is suitable for the starting needs of general small and medium-sized industrial motors.
Read More
3RW4055-6BB34
The 3RW4055-6BB34 is a simplified soft starter in the Siemens SIRIUS 3RW40 series S6 housing. It has a rated operating voltage of 200 to 460V, a rated current of 117A at 50°C, a bus terminal for the main circuit, and a 115V AC control power supply. It features built-in adjustable current-limiting start and overload protection and is suitable for high-current three-phase motor applications.
Read More
3RW4047-1TB04
The 3RW4047-1TB04 is a simplified soft starter in the Siemens SIRIUS 3RW40 series S3 housing. It has a rated current of 98A at 50°C, a control power supply voltage of 24V AC/DC, and a thermistor (PTC) input terminal to receive motor temperature sensing signals, providing more immediate overheat protection.