Brief introduction of the products
1.1 Derived from Y2 series(IP54), YB2 series explosion-proof three-phase asynchronous motor is the upgraded model of YB series. Main characteristics have reached international advanced level in 1990's. It has higher level safety protection measures to make it to be safer and more reliable. It can be applied in occasions that require higher safety standards, such as coal mine and those factories that contain volatile mixed air.
1.2 YB2 series implement the standards of JB/T7565.1-2004(YB2 series explosion-proof three-phase asynchronous motor technical qualification)and has obtained the explosion-proof certification. It consist of 15 frames ranging from 63 to 355, with a wide power range from 0.12 to 315 KW, totally 82 specifications. It has two types: dl and dll, with dl applied coal mine and dll applied in factory.
1.3 Characteristics:
1)Highly standardized, unversal design. The installation size is basically the same as YB series.
2)The motor has a unique design of parallel and vertical radiating slices which not only improve the radiating capability but also make the appearance more elegant.
3)Insulation class;F.
1.4 Working conditions:
1). Ambient temperature: d ll type-15℃≤0≤40℃. d I type-15℃≤0≤35℃
2).Elevation: Be lower than 1000 meters.
3).Relative humidity: Not higher than 95% for d I Not higher than 90% for d II.
4) Rated voltage: 380V, 660V, 380/660V.
5) Frequency: 50 HZ.
6). Cooling method: IC411.
7). Protection class: IP55
