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4-3. Over Load Protector (OLP)
1. Define
(1) The OLP (OVERLOAD PROTECTOR) is attached to the Compressor and protects the motor by opening the
circuit to the motor if the temperature rises and activating the bimetal spring in the OLP.
(2) When high current flows to the compressor motor, the Bimetal works by heating the heater inside the OLP,
and the OLP protects the Motor by cutting off the current flowing to the Compressor Motor.
2. Role
(1) The OLP is attached to the sealed compressor
used for the refrigerator. It prevents the motor
coil from being started in the compressor.
(2) For normal operation of the OLP, do not turn
the adjustment screw of the OLP in any way.
Part
Customer part
number
Lot code/
date code
330 FBYY
-S1 BOX98
12345678
Physical
termination
part number
Electrical
characteristics
part number
No. Name
Base, phenolic
(UL 94 V-0 rated)
Movable arm support, plated steel
Stationary contact support,
plated steel
Heater support, plated steel
Heater, resistance alloy
Disc, thermostatic alloy
Movable arm, spring temper
copper alloy
Contact, movable, silver on copper
Contact, stationary, silver on copper
Slug, plated steel
Cover, polyester
(UL 94 V -0 rated)
Pin connector, plated copper alloy
(To engage 2.33/2.66 mm dia. pin)
Quick-connect terminal, brass,
conforms to UL 310, MEMA
DC-2, DIN 46344
(OVERLOAD PROTECTOR
cross section)
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