UL 1004-7-2010 pdf download

UL 1004-7-2010 pdf download.Electronically Protected Motors.
18 Spacings 1 8.1 Spacings at an electronic protector terminal intended to be used as a field-wiring terminal shall not be less than those specified in Table 1 8.1 or Table 1 8.2 of UL 1 004-1 , as appropriate. 1 8.2 The adequacy of spacings shall reflect the actual levels of voltage involved, which in the case of electronically protected motors may be significantly greater or less than the nominal power line voltage. PERFORMANCE 29A Application of UL 60730-1 to Controls used to Provide Overtemperature Protection for Motors 29A.1 With reference to 2.1 , all performance testing required by the Standard for Automatic Electrical Controls for Household and Similar Use, Part 1 : General Requirements, UL 60730-1 , on the control is to be performed with the control connected as intended to the motor. Exception: A motor control shall only need comply with the requirements for operating controls in UL 60730-1 , if the motor coil complies with the locked rotor performance criteria in the Standard for Thermally Protected Motors, UL 1 004-3, with motor control disconnected from the motor coils, and the power supply for the motor control connected directly across a single motor coil or any combination of motor coils connected in parallel. 29A.1 revised May 28, 201 0 29A.2 Any test conducted on the control that does not result in an obvious inability of the motor to operate as intended, characterized by a cessation of rotation, shall not result in a temperature of the motor windings in excess of the values specified in Table 31 .2 of UL 1 004-1 . Cessation of rotation is considered to be independent of an inability to start.
29A.3 Any test conducted on the control that results in an obvious inability of the motor to operate as intended, characterized by a cessation of rotation, shall not result in a temperature of the motor windings in excess of the values specified in Table 41 A.1 of UL 1 004-3. Cessation of rotation is considered to be independent of an inability to start. 29A.4 Any abnormal test conducted on the electronic protection circuit that terminates as a result of a component failure, that failure mode shall be evaluated in a manner consistent with the requirements of UL 60730-1 to ensure that the result is reliable and consistent. 29A.4 revised May 28, 201 0 29A.5 Controls evaluated to provide required motor overtemperature protection shall provide the following required safety functions when evaluated to the requirements of UL 60730-1 : a) Locked rotor protection – The control shall not allow motor temperatures in excess of those specified in Table 41 A.1 of UL 1 004-3 under any test condition required by UL 60730-1 . b) Loss of phase (power supply phase not motor phase): 1 ) Where loss of a power supply phase does not result in a cessation of rotation, the temperature of the motor windings shall not exceed the values specified in Table 41 C.1 of UL 1 004-3.
29B Application of UL 1004-3 to Controls used to Provide Overtemperature Protection for Motors 29B.1 With reference to 1 .2, motors with associated protection circuits shall be evaluated to the requirements of UL 1 004-3 in accordance with the operating functionality that is emulated by the control, i.e., that a circuit that operates in a manner similar to an automatically reset protector shall be tested and evaluated to the requirements contained in UL 1 004-3 for automatically reset protection as an overtemperture protection means. MARKINGS 43 General 43.1 A motor that has been tested for running-heating and locked-rotor protection shall be marked, on the outside of the motor where visible, ″Electronically-Protected″, ″EP″, or ″E.P.″. 43.2 A motor that has been tested for locked-rotor protection only shall be marked, on the outside of the motor where visible, ″Electronically-Protected L″, ″EPL″, or ″E.P.L.″. INSTRUCTIONS 45 General 45.1 Instructions shall be provided for manual reset operation when not self-evident.UL 1004-7-2010 pdf download.