
4-3 OLP (OVERLOAD PROTECTOR)4-3 OLP (OVERLOAD PROTECTOR)
4-3-1 Definition of OLP4-3-1 Definition of OLP
(1) OLP (OVERLOAD PROTECTOR) is attached to the(1) OLP (OVERLOAD PROTECTOR) is attached to the
Compressor and protects the Motor by Compressor and protects the Motor by
circuit to the Motor if the temperature rises circuit to the Motor if the temperature rises
ing the bimeting the bimet
al spring in the OLal spring in the OL
(2) When high current flows to the (2) When high current flows to the
Compressor motorCompressor motor
l works by heatl works by heat
ing the heater iing the heater i
nside the OLPnside the OLP
and the OLP protects the Motor by cutting off theand the OLP protects the Motor by cutting off the
current flowing to the current flowing to the
Compressor Motor.Compressor Motor.
Customer partCustomer part
characteristicscharacteristics
Base, phenolicBase, phenolic
(UL 94 V-0 rated)(UL 94 V-0 rated)
Movable arm support,Movable arm support,
Stationary contact support,Stationary contact support,
Heater support, plated steelHeater support, plated steel
Heater, resistance alloyHeater, resistance alloy
Disc, thermostatic alloyDisc, thermostatic alloy
Movable arm, spring temperMovable arm, spring temper
Contact, movable, silver on copperContact, movable, silver on copper
Contact, stationary, silver on copperContact, stationary, silver on copper
Slug, plated steelSlug, plated steel
Cover, polyesterCover, polyester
(UL 94 V-0 rated)(UL 94 V-0 rated)
Pin connector, plated copper alloyPin connector, plated copper alloy
(To engage 2.33/2.66 mm dia. pin)(To engage 2.33/2.66 mm dia. pin)
(OVERLOAD PROTECTOR(OVERLOAD PROTECTOR
cross section)cross section)
plated steel.plated steel.