Nord's new 3- and 4-hp premium efficient motorsoffer a simplified assembly, including the elimination of a copper rotor, as the motors produce the same energy efficiency without it. This change results in reduced costs. Not changing in the design are the outer dimensions and the mounting options available—direct mount, NEMA, and IEC, making the new motors drop-in compatible for existing systems. While the new motors will be the preferred offering beginning Q1 2022, legacy versions are not being immediately discontinued and will still be available for a period.
The exterior of the motors has new curved cooling fins that have been adapted in depth and shape. These fins curve around the terminal box and the motor to enhance airflow and optimize cooling. Sharp edges and corners have been removed from the terminal box to smooth the design and provide easier maintenance. The need for NPT adapters has been eliminated, as there are now directly integrated imperial and metric conduit connections for ease of use and reduction of parts. Additionally, curved feet on the new design give the motor greater strength, stability, and a streamlined appearance. The fan cover has also received an updated radial design and the screws of the hood have been rotated by 45 deg, making them accessible in case a variable frequency drive is installed.
除了视觉更新外，100帧电动机还具有多个机械更新，例如优化的转子风扇组件和编码器安装。转子风扇的设计具有快速单击的机制，可简单安装或拆卸，从而快速轻松地进行维护和更换。增量编码器具有完全影响保护，并在轴承罩中添加了改进的扭矩支撑。编码器位置本身已在风扇和B端轴承屏蔽之间移动。这些组件的变化导致防止机械影响和更好的电动机冷却，因为编码器没有阻止风扇入口。除了移动编码器位置外，现在还进行了编码器的改装，并且借助插件轴，可以轻松地将增量编码器重新改造成标准电动机而无需更换或重新加工转子。特殊选项，例如基于CAN的绝对编码器，手动轮和铸铁风扇，可用于配置。
