The YB3 series flameproof three-phase asynchronous motor is a true guardian of power, specially designed for environments containing flammable gases and coal dust. With frame sizes ranging from 80 to 355 and power outputs from 0.55 kW to 315 kW, this motor delivers strong and reliable performance. Featuring a protection class of IP55 and an IE2 energy efficiency rating, it provides an optimal balance between safety and efficiency.

Available rated voltages include 380 V, 660 V, and 380/660 V, allowing the YB3 series to adapt flexibly to various power supply requirements.

The application range of the YB3 series is extensive. It performs reliably in coal mines filled with flammable gases such as methane, as well as in industrial environments containing Group II, Class A and B combustible gases, temperature classes T1 to T4. Regardless of operating conditions, the YB3 series ensures a high level of safety and dependable operation.

In terms of ambient temperature, the motor operates stably from –15°C to +35°C in coal mine environments, and up to +40°C in factory environments, demonstrating excellent adaptability to both cold and hot conditions.

What truly sets the YB3 series apart is its comprehensive range of explosion-proof markings, including Ex d I Mb, Ex d IIA T4 Gb, and Ex d IIB T4 Gb, ensuring safe use under different hazardous conditions. The motor effectively controls surface temperatures, with a maximum of 150°C for Class I environments and up to 450°C for Class II environments. In addition, its flexible terminal box design supports both rubber-sheathed cables and steel conduit wiring, making installation convenient and versatile.

In short, the YB3 series is more than just an electric motor—it is a perfect combination of safety, reliability, and efficiency. Even in the harshest and most demanding environments, it stands as a trustworthy and powerful drive solution.