YFBX4 Series High-Efficiency Dust Explosion-Proof Three-Phase Asynchronous Motor

The YFBX4 Series is a professional low-voltage dust explosion-proof motor, fully compliant with domestic and international dust explosion-proof standards.

With a high dust-and-water-proof structure, it is suitable for hazardous operating conditions with combustible dust accumulation.

Core Technical Parameters:

  • Voltage Rating: 380V, 660V, 380/660V, 660/1140V
  • Power Range: 75–355 kW
  • Pole Configuration: 2–12 poles
  • Protection Class: IP65 (high dust and water protection)
  • Insulation / Temperature Rise Class: Standard: F/B; Optional: H/B
  • Energy Efficiency Class: Class II energy efficiency
  • Operating Frequency: 50 Hz
  • Duty Type: Continuous duty (S1)
  • Operating Environment: Altitude ≤ 1,000 m; Ambient temperature –15 °C to +40 °C
  • Explosion-Proof Type: Ex tD A21 IP65 T130 °C
  • Frame Range: 63–400
  • Standard Temperature Rise: Stator winding temperature rise ≤ 80 K under standard conditions (resistance method)
  • Applicable Standards: 1-2000, IEC61241-1-1999, GB/T 3836.1-2021, GB/T 3836.31-2021; power and mounting dimensions fully conform to IEC international standards

Product Features:

Fully enclosed self-fan cooled squirrel-cage structure, with innovative design, compact structure, high torque, good aerodynamic performance, energy savings and noise reduction, low vibration, and safe and reliable operation.

Application Scenarios:

Explosive hazardous locations with combustible dust in textile, metallurgical, grain processing, papermaking, light industrial, and building materials industries.