Mody Pumps MHMXP 6 X 12 User Manual
Page 7
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TYPICAL THERMAL PROTECTION WIRING CIRCUIT:
THERMALS NORMALLY CLOSED ARE WIRED IN SERIES WITH THE COIL ON THE
CONTACTOR/MAGENETIC STARTER. WHEN THE MOTORS BEGINS TO OVERHEAT THE THERMAL
SWITCHES OPEN AND CURRENT STOPS FLOWING THROUGH THE COIL EFFECTIVELY TRIPPING
THE CONTACTOR. NOTE THAT THE THERMALS DO NOT PROVIDE ANY LOCKED ROTOR
PROTECTION. WE RECOMMEND USING A MOTOR CIRCUIT PROTECTOR THAT PROVIDES SHORT
CIRCUIT AND OVERLOAD PROTECTION.
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