Click here to purchase
IEC 60947-4-1:2018 is applicable to the following equipment:

• electromechanical contactors and starters including motor protective switching device (MPSD);
• actuators of contactor relays;
• contacts dedicated exclusively to the coil circuit of this contactor or this contactor relay;
• dedicated accessories (e.g. dedicated wiring, dedicated latch accessory); intended to be connected to distribution circuits, motors circuits and other load circuits, the rated voltage of which does not exceed 1 000 V AC or 1 500 V DC. This fourth edition cancels and replaces the third edition published in 2009 and its Amendment 1:2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
• Scope structure and exclusions
• Editorial correction of notes and hanging paragraphs
• Reference to IEC 62683-1
• Motor protective switching device (MPSD) with its requirements
• Safety aspects related to:
• General aspects;
• Limited energy circuits;
• Electronic circuits;
• Assessment procedure for electromechanical overload protection used in safety -applications (new Annex L)
• Introduction of provisions covering the impact of higher locked rotor current to achieve high efficiency class
• Mention of dedicated wiring accessories
• Pickup power measurement
• Alignment to IEC 60947-1:2007, IEC 60947-1:2007/AMD1:2010, and IEC 60947-1:2007/AMD2:2014
• Direct current requirements for covering photovoltaic application (new Annex M)
• Load monitoring indicators (new Annex O)
• Short-circuit breaking tests of MPSD (new Annex P)
• Co-ordination under short-circuit conditions between a MPSD and another short-circuit protective device associated in the same circuit (new Annex Q).

Product Details

Edition:

4.0

Published:

10/25/2018

Number of Pages:

371

File Size:

1 file , 3 MB