Name: Siemens (SIEMENS) motor soft starters 3RW40552BB35 Model: 3RW40552BB35 Brand: SIEMENS Products: A front panel installation, wiring board control device, there are two series of metal and plastic. Its flat shape and has a streamlined design, the entire control panel is very coordinated beautiful, slip-ring mounting structure, cleverly designed, greatly improving the efficiency of the installation. Product Features: SIRIUS 3RW40 control using patented a new technology - "phase balance." The control technology can prevent two control soft starter DC component. For two-phase controlled soft starters, two control phase current flows from uncontrolled phase. Thus, from a purely physical point of view, when the motor is started, the three-phase currents asymmetry. Although this is not affected, but in most applications still can not be ignored. In addition to this asymmetry, if the control power semiconductors in the two control phases, the DC component is generated. When the starting voltage is less than 50%, will result in noisy motor. "Phase equilibrium" technique it is possible to reliably avoid the direct current component of the motor starting. It may speed, torque and current aspects of generating incremental uniform motor starting characteristics. Starting noise and quality control of three phases and the same starting equipment. This can be a different phase of the half-wave current during acceleration to achieve continuous dynamic adjustment and balanced motors. Performance: 22mm and 30mm diameter installed two series protection level can reach IP65 SIGUT termination technology, enabling fast and secure connection complies with Part VDE0106 Section 100 requirements for safety touch of black, red, green, blue, yellow, white and transparent color 144 kinds of colors.