SIS SS EN 50 042-1989 工业用低压成套开关设备和控制设备．终端标识．外部终端 相关电子电路元件和接触

标准号：SIS SS EN 50 042-1989
中文标准名称：工业用低压成套开关设备和控制设备．终端标识．外部终端 相关电子电路元件和接触
英文标准名称：Low-voltage switchgear and controlgear for industrial use —Terminal marking —Terminals for externa! associated electronic circuit components and contacts
发布日期：1989/9/13 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：This standard applies to switching devices which are able to operate only when completed with external associated electronic circuit components and contacts.The rules in this standard apply only to terminals for external associated electronic circuit components and contacts. These are a supplement to the general rules for the marking:of control supply terminals (see EN 50 005, clause 3.1),and of terminals for internal auxiliary contact elements (see EN 50 005, clause 4.2).The use of this standard is recommended where terminal marking is a requirement of the relevant standard for switching devices or is usual practice.