UL 60947-4-1-2017 pdf free download

UL 60947-4-1-2017 pdf free download.Low-Voltage Switchgear and Controlgear — Part4-1: Contactors and Motor-Starters — Electromechanical Contactors and Motor-Starters.
signifier qu’un courant de fuite a ete Interrompu. Pour réduire les risques d’incendie et de choc électrique, les pièces porteuses de courant et autres pièces de Ia commande doivent être examlnées et remplacées au besoin.”
6.2DV.2.3 A controller with direct-current motor ratings that does not comply with the requirements in Annex DVB, Table DVB.3, Ref. No. 18 of Part 1 shall be marked with the word “WARNING” and the following or equivalent: “Do not connect to a circuit supplied by a single-phase, half-wave rectifier.”; or “Do not connect to a circuit supplIed by a single-phase rectifier of the half-wave or full wave type.”, as applicable. In Canada, the equivalent French marking is “AVERTISSEMENT — Ne pas raccorder a un circuit alimenté par un redresseur a simple alternance monophasé.” or “AVERTISSEMENT — Ne pas raccorder a un circuit alimenté par un redresseur monophasé de type a simple alternance ou de type a deux alternances.”
6.2DV.3 Overload relay markings
6.2DV.3.1 A combination manual or automatic-reset overload relay shall be marked to indicate whether the relay is set in either the manual or automatic position.
6.2DV.3.2 Equipment employing an automatic reset overload relay and having no circuit, shall be marked to indicate that a motor connected to the circuit may start automatically when the relay is in the automatic reset position.
6.2DV.3.3 Current transformer for use with overload relays — When the overload relay is the model or catalog number and name of the manufacturer; or turns ratio frequency and maximum signal (current) that can be applied to the input of the overload relay.
6.2DV.3.4 Except as permitted in 6.2DV.3.5, an overload relay that has a replaceable current element, or industrial control equipment incorporating such an overload relay, shall be permanently marked with the following or equivalent wording:
“WARNING: THE OVERLOAD RELAY MUST BE REPLACED IF BURNOUT OF THE CURRENT ELEMENT OCCURS.” In Canada, the equivalent French marking is ‘AVERTISSEMENT: LE RELAIS DE SURCHARGE DOlT ETRE REMPLACE SI LELEMENT DE COURANT GRILLE.’
6.2DV.3.5 If the calibrated elements of the overload relay described in 6.2DV,3.4 are contained within the replaceable thermal unit, then only the thermal unit need be replaced upon heater burnout. The marking of clause 6.2DV.3.4 may be modified to indicate that only the replacement of the thermal element is required.
6.2DV.4 Marking for reduced voltage autotranstormer controllers.UL 60947-4-1-2017 pdf free download.