Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
实施日期:2010-02-01
Niederspannungsschaltgeraete. Schuetze und Motorstarter HalbleiterMotorSteuergerate und Starter fuer Wechselspannung Low-voltage switchgear and controlgear Part 4-2:Contactors and motor-starters AC sem...
适用范围:This standard applies to controllers and starters, which may include a series mechanical switching device, intended to be connected to circuits, the rated voltage of which does not exceed 1 000 V a.c. ...
实施日期:2000-01-01
实施日期:2006-10-01
发布日期:2009-07-31 实施日期:2009-07-31
发布日期:2012-07-31 实施日期:2012-07-31
Low-voltage switchgear and controlgear - Part 4-2: Contactors and motor-starters - AC semiconductor motor controllers and starters
适用范围:IEC 60947-4-2:2011 applies to a.c. semiconductor motor controllers and starters, which may include a series mechanical switching device, intended to be connected to circuits, the rated voltage of which...
发布日期:2011-05-18 实施日期:2011-05-18
Low-voltage switchgear and controlgear. Part 4-3:Contactors and motor-starters. AC semiconductor controllers and contactors for non-motor loads
适用范围: 本部分适用于通过变换交流电路的导通状态和截止状态对其进行操作的非电动机负载用交流半导体控制器和接触器,典型应用见表2。 作为控制器,应能持续或在一特定的时间内降低负载端交流电压有效值的幅值,但由施加电...
发布日期:1999-09-30 实施日期:1999-09-30
Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
适用范围:IEC 60947-3:2008 applies to switches, disconnectors, switch-disconnectors and fuse-combination units to be used in distribution circuits and motor circuits of which the rated voltage does not exceed 1 ...
发布日期:2008-08-28 实施日期:2008-08-28
实施日期:2007-09-01
Niederspannungsschaltgeraete. Schuetze und Motorstarter. Halbleiter-Steuergeraete und Schuetze fuer nichtmotorische Lasten fuer Wechselspannung Low-Voltage Switchgear and Controlgear-Part 4.3:Contactor...
适用范围:This part of IEC 60947 applies to a.c. semiconductor non-motor load controllers and contactors intended for performing electrical operations by changing the state of a.c. electric circuits between the ...
实施日期:2000-08-15
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