●Super quiet sound level.

全金属防锈的处理，适应各种环境

●2 duct sizes available with 200 and 250mm ducted applications.

有200及250毫米接管的尺寸

●safty overload protection.

卓越的低噪音表现

●IPX2 or IPX4; two speeds optional.

过热保护的电机设计

● two speeds optional.

可提供高低两个转速选择.