Energy Guide

Page 71 of 104 Report No.: HK2107050725-SR
UL 507
Clause Requirement + Test Result - Remark Verdict
TRF No. UL507A
50.6 When the stabilized temperature of the impedance-
protected motor installed in the fan exceeds the
temperature of the motor tested in the open in
accordance with the Standard for Overheating
Protection for Motors, UL 2111, or in the Standard
for Impedance Protected Motors, UL 1004-2, or if
the motor was never so tested, the rotor is to
remain locked for 18 days under the conditions
specified for the Locked- Rotor or No-Load
Temperature Test in UL 1004-2, except the motor
is to be installed in the fan as specified in 50.3.
During the initial 72 hours, the motor temperature
shall not exceed the applicable temperature limits
specified in UL 1004-2. During and after the 18-day
period, the motor shall comply with the Locked-
Rotor or No-Load Temperature Test requirements
in UL 1004-2.
P
50.7 Under locked rotor conditions, the temperature of a
thermally protected motor shall not exceed
therequire ments in the Standard for The rmally
Frotected Motors. UL 1004-3.
P
51 Locked Rotor Cycling N/A
51.1 Three motor samples are to be provided with the
coil wrap terminating on the bend of the coil and
are to be subjected to the test described in 51.2 –
51.4.
N/A
51.2 Each sample is to be energized at a test potential
in accordance with Table 40.1 with the rotor
locked. The motor circuit is to be cycled on and off
as quickly as the motor allows. The winding
temperatures shall reach the maximum
temperature and the minimum temperature shown
in Table 51.1, as determined with a thermocouple.
The test duration is to be for 18 days with the motor
at room temperature at the beginning of the test.
N/A
51.3 Protective devices shall be by-passed and when
the motor does not function throughout the test, a
different motor shall be chosen and the test started
from the beginning. When a part, such as a
capacitor, can be replaced in order for the motor to
function, then the test may continue.
N/A
51.4 As a result of the test in 51.2 and 51.3, there shall
be no loosening of the coil wrap, lifting of the coil
wrap termination greater than 1.6 mm (1/16 inch),
nor other degradation of the coil wrap's adhesive
bond as determined by visual examination.
N/A
52 Flagging N/A