UL 60730-2-10A:2002 pdf download Automatic Electrical Controls for Household and Similar Use; Part 2: Particular Requirements for Motor Starting Relays
1 Scope and normative references
This clause of Part 1 is replaced as follows:
1.1 This part of lnternational Standard IEC 60730 applies to controls for automatically controlling thestarting windings of single phase motors associated with equipment for household and similar use.
This standard applies to motor-starting relays using NTC or PTC thermistors, additional requirements forwhich are contained in Annex J.
1.1.1 This Part 2 applies to the inherent safety, to the OPERATING VALUES,OPERATING TIME and OPERATINGSEQUENCEs where such are associated with equipment safety, and to the testing of motor starting relaysused in, or in association with, household or similar equipment.
Throughout this Part 2, the word “equipment” means “appliance and equipment.” The words “starting relay” mean”motor starting relay.”
Motor-starting relays for equipment not intended for normal household use, but which nevertheless maybe used by the public, such as equipment intended to be used by laymen in shops, in light industry andon farms, are within the scope of this standard.
This standard does not apply to motor-starting relays designed exclusively for industrial applications.
1.1.2 This Part 2 applies to starting relays incorporating electronic devices, starting relays usingthermistor elements, thermal elements and magnetic elements.
1.1.3 This Part 2 does not apply to general purpose relays or to contactors and motor starters of the typecovered by lEC 158 and 292. This standard does not apply to mechanical TivERs or mechanically operatedmotor starting devices.
1.1.4 This Part 2 applies to ANUAL CONTRoLs when such are electrically and/or mechanically integral withstarting relays.
Requirements for manual switches not forming part of a starting relay are contained in IEC 61058-1
1.2 This Part 2 applies to starting relays with a RATED VOLTAGE not exceeding 690 V and with a RATEDCURRENT not exceeding 63 A.
1.3 This Part 2 does not take into account the RESPONSE VALUE of an AUTOMATIC ACTON of a starting relay, ifsuch a RESPONSE VALUE is dependent upon the method of mounting the starting relay in the equipment.Where a RESPONSE VALUE is of significant purpose for the protection of the usER or surroundings, the valuedefined in the appropriate household equipment standard or as determined by the manufacturer shallapply.
1.4 This standard applies also to motor-starting relays incorporating electronic devices, requirements forwhich are contained in annex H.
1.5 Normative references
This subclause of Part 1 is applicable.
2 Definitions
This clause of Part 1 is applicable except as follows
2.2 Definitions of types of control according to purpose
Additional definition:
2.2.101 MOTOR STARTING RELAY: MOTOR STARTING RELAY enotes an ELECTRICALLY OPERATED CONTROL intended forintegration or incorporation in an appliance and used within a motor circuit to control the connectionbetween the main winding and the auxiliary starting winding for the purpose of starting single-phasemotors in household appliances and similar applications.
Normally a MOTOR STARTING RELAY will provide a TYPE 1 ACTION.
2.3 Definitions relating to the function of controls
Additional definitions
2.3.101 PICK-UP VALUE: PICK-UP VALUE denotes the declared value of voltage or current at which an electromagnetic starting relay operates on a rise in voltage or current.
NOTE This is also referred to as the “make value.
2.3.102 DROP-OUT VALUE: DROP-OUT VALUE denotes the declared value of voltage or current at which anelectro-magnetic starting relay operates on a fall in voltage or current.
NOTE This is also referred to as the “break value.”
2.3.103 CONTACT CHANGE VALUE: CONTACT CHANGE VALUE denotes the declared value of voltage or current atwhich an electrothermal starting relay operates on a rise in voltage or current.
2.3.104 CONTACT HOLD VALUE: CONTACT HOLD VALUE denotes the declared value of voltage or current at whichan electrothermal starting relay remains in its operated state on a fall in voltage or current.
3 General requirements
This clause of Part 1 is applicable.