I.S. EN IEC 60947-4-1:2019&AC:2020-05

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
4 Classification
5 Characteristics of contactors and starters
6 Product information
7 Normal service, mounting and transport conditions
9 Tests
Annex A (normative) Marking and identification of terminals of contactors, starters and associated overload relays.
Annex B (normative) Special tests
Annex C (informative) Typical characteristics of starters
Annex D (informative) Items subject to agreement between manufacturer and user
Annex E (Void)
Annex F (normative) Requirements for auxiliary contact linked with power contact (mirror contact)
Annex G (informative) Rated operational currents and rated operational powers of switching devices for electrical motors
Annex H (normative) Extended functions to electronic overload relays
Annex I (informative) AC-1 contactors for use with semiconductor controlled motor load
Annex J (Void)
Annex K (normative) Procedure to determine data for electromechanical contactors used in functional safety applications
Annex L (normative) Assessment procedure for electromechanical overload protection used in safety applications and especially in explosive atmospheres
Annex M (normative) DC contactors for use in photovoltaic (PV) applications
Annex N (normative) Additional requirements and tests for equipment with protective
separation
Annex O (informative) Load monitoring indicators
Annex P (normative) Short-circuit breaking tests of MPSD
Annex Q (normative) Co-ordination under short-circuit conditions between a MPSD and another short-circuit protective device associated in the same circuit
Bibliography

This part of IEC 60947 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.