Their external dimensions and installed the size already to standardize, being substitute for Simens 4AP,The product conforms to standards and so on VDE0550, IEC204-1, IEC439, JB5555, GB5226.

• 它们的外形尺寸和安装尺寸已经标准化,与西门子4AP通用,产品符合VDE0550、IEC204-1、IEC439、JB5555、GB5226等国际、国家标准。