Standard No.:	JB/T 8681-2013
English Name:	Specification for YDT Series (IP44) change-pole multi-speed three-phase induction motor (frame size 80~315)
Chinese Name:	YDT系列（IP44）变极多速三相异步电动机技术条件（机座号80～315）
Professional Classification:	JB    Professional Standard - Machinery
Source Content Issued by:	MIIT
Issued on:	2013-12-31
Implemented on:	2014-7-1
Status:	superseded
Superseded by:	JB/T 8681-2022 Specification for YDT series ( IP54 ) change-pole multi-speed three-phase induction motors(frame size 80~355)
Superseded on:	2023-4-1
Superseding:	JB/T 8681-1998 Technical Specifications for YDT Series (IP44) Pole Changing Multispeed Three-phase Asynchronous Motors (Frame Size 80-315)
Target Language:	English
File Format:	PDF
Word Count:	8000 words
Translation Price(USD):	484.0
Delivery:	via email in 1~3 business day

本标准规定了YDT系列（IP44）变极多速三相异步电动机（机座号80～315）的型式、基本参数与尺寸、技术要求、检验规则以及标志、包装及保用期的要求。
本标准所界定的YDT系列（IP44）变极多速三相异步电动机，适用于风机、泵类负载可变速运行的场合。凡属本系列电动机所派生的各种系列电动机也可参照执行。