Overview of YFB High-Voltage Dust Explosion-Proof Motor

The YFB Dust-Ex-proof Motor is a new series of explosion-proof products developed and manufactured by our company. In compliance with GB12476.1 - Electrical equipment for use in environments with combustible dust - Part 1: Electrical equipment for protection by enclosures and by limiting surface temperatures - Section 1: Technical requirements (IDT IEC 61241-1:1999), the YFB series dust explosion-proof motors feature a fully enclosed, self-cooled squirrel-cage structure. They are characterized by innovative design, compact structure, attractive appearance, high efficiency and torque, excellent starting performance, low noise, small size, light weight, energy-saving, minimal vibration, large temperature rise margin, high starting torque, superior performance, advanced and reasonable explosion-proof structure, and safe and reliable operation. This series covers frame sizes from 80 to 355, with power ratings and installation dimensions that fully comply with the International Electrotechnical Commission (IEC) standards.

YFB explosion-proof dust motors are divided into dust-tight and dust-proof categories based on their ability to restrict dust from entering the motor housing; the protection grades are IP65 and IP56, with standard designations DT and DP, respectively. Dust-proof motor structures are suitable for use and maintenance in environments with combustible, non-conductive dust. 2 For example, the description of motor model specifications is as follows: 3 Explosion-proof Mark The explosion-proof mark for this series of motors is ExDIPDPT13, which is explained as follows: EX - Explosion-proof electrical equipment mark; DIP - Dust explosion-proof code; DP - Enclosure type is dust-proof, dust type is combustible and non-conductive (if it's DT, it's dust-tight and suitable for explosive and conductive dust); T13 - Ignition temperature group, for dust, the ignition temperature is >150-200℃; for the selected motor, without overload, the allowable high surface temperature is 120℃; with overload, the allowable high surface temperature is 110℃. 4 Operating Conditions Ambient air temperature: not exceeding -20～+40℃; relative humidity: ≤85％

YFB High-Voltage Dust-Exproof Motor Application Conditions:

1. Environmental Temperature: The ambient air temperature varies with the seasons, with a maximum of 40℃ and a minimum of -15℃.

Altitude: Not exceeding 1000m.

Rated Frequency: 50Hz.

Rated Voltage: 380V, 380/660V, 660/1140V.

5. Work Method: Continuous Fixed Quota (S1).

YFB High-Voltage Dust Explosion-Proof Electric Motor Application Range

This standard specifies the explosion-proof safety requirements for dust explosion hazard areas in factories.

This standard applies to the engineering design, production management, and storage and transportation of powder products in hazardous dust explosion areas.

The YFB dust explosion-proof motor is a derivative product of the YB2 series explosion-proof motor, widely applicable in dust environments such as grain processing machinery and crushing machinery.