Mars 37075 User Manual
®
37090
Klixon 3-Phase Motor Protectors
ARS SERIES
M
On-Winding Overheat Protection
Klixon SL-11 kits are mounted on the windings of general purpose motors and
hermetically sealed compressors. They supplement conventional current
verload relays in magnetic starters providing modern total protection for most
o
older motors in use today.
Features:
Allow motors to perform at full-load capacity but will protect against
•
dangerous running overloads
• Protect against blocked ventilation, high ambient temperatures,
single phasing
• Each kit contains three matched motor-winding thermostats
• When starter overloads operate, the SL-11 will protect against re-starting
at unsafe winding temperatures if the starter overloads rese when the
motor is still too hot
• These motor winding thermostats do not replace overloads in the starter
• UL & CSA listed
Installation:
SL-11 thermostats are tied in place on the end turns of appropriate winding
bundles, one to each phase or buried in the windings during motor rewind.
They are connected in series between the starter coil and its power supply.
Selection:
• Pick thermostat temperature to operate at the mid-point between the
“maximum normal running” temperature and the “maximum allowed
running temperature.”
• Subtract the gradient temperature (outlined in the chart below) from the
mid-point to obtain the operating temperature of the thermostat.
370
COMPONENT
Maximum Contact Rating
Amperes
Klixon # 24V 115V 230V
9700K 18 18 12
Typical Gradients
MOTOR TYPE END TURNS END TURNS
OPEN TYPE 30°C 15°C
TOTALLY ENCLOSED
FAN COOLED 25°C 10°C
TOTALLY ENCLOSED
NON-VENTILATED 20°C 5°C
THERMOSTAT
LOCATION
TIED ON BURIED IN
Epoxy-Sealed Thermostats For
General- Purpose Motors.
MARS
NO.
37075
37090
37100
37110
37120
37130
37135
37140
37145
37150
Three thermostats per package
KLIXON
KIT NO
SL-11-75 9700K51-146 75°C
SL-11-90 9700K21-146 90°C
SL-11-100 9700K26-146 100°C
SL-11-110 9700K36-146 110°C
SL-11-120 9700K01-146 120°C
SL-11-130 9700K11-146 130°C
SL-11-135 9700K06-146 135°C
SL-11-140 9700K66-146 140°C
SL-11-145 9700K76-146 145°C
SL-11-150 9700K46-146 150°C
KLIXON
CAT. NO
OPERATING
TEMPERATURE
The largest selection of motors, components, and accessories for the HVAC/R Industry
C-53
Loading...