The energy efficiency of TYFB5 series dust explosion-proof variable frequency speed control permanent magnet synchronous motor meets the IE5 efficiency level in IEC60034-30-2. The motor operates at a reduced speed driven by a frequency converter, with good ability to operate at constant torque at low speeds, a wide speed range, and high efficiency throughout the entire speed range. The installation dimensions of each chassis number should be consistent with the induction motor and comply with IEC and relevant national standards, making it convenient for customers to install and use.