一种用于板前安装，板后接线的控制装置，有金属和塑料两个系列。其外形设计扁平且具有流线形，使整个控制面板非常协调美观，滑环式的安装结构，设计巧妙，大大提高了安装效率。
产品特点：
SIRIUS 3RW40采用拥有专利权的全新控制技术－“相位平衡”。该控制技术能够防止两项控制软起动器中的直流成分。对于两相控制软起动器 ，来自两个控制相位的电流会流经未受控制的相位。因此，从纯粹的物理角度来看，在电机起动时，三相电流会不对称。这虽然不受影响，但 在大多数应用中仍不可忽视。除了这种不对称性之外，如果在两个控制相位中控制功率半导体器件，则会产生直流成份。在起动电压低于50%时，则会造成电机中出现噪音。“相位平衡”技术则能够可靠避免电机起动时的这些直流成份。它可就转速、转矩和电流增量方面生成统一的电机起动特性。并且起动噪声质量和控制三个相位的起动设备一样。这可通过连续动态调整和均衡电机加速时不同相位的半波电流实现。
性能说明：
安装直径有 22mm 和 30mm 两个系列防护等级可达到 IP65 SIGUT 端接技术，实现安全快速连接符合 VDE0106 第 100 部分中有关安全触摸的要求有黑、红、绿、兰、黄、白和透明色144 种颜色。
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