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Weg
PESW-B50D45AX-R71
Enclosed Starter, 50 Amp (50A) CWB Contactor, 600V Coil Voltage, Start/Stop, 32-50A Overload Range, Three Phase, NEMA 4X, Non-Metallic, Non-Reversing, Non-Combination Across the Line Starter, M06 Box Dimensions: 13 x 7.5 x 5.6 (HWD)
$312.66$312.66 -
Weg
PESW-B50D45EX-R71
Enclosed Starter, 50 Amp (50A) CWB Contactor, 600V Coil Voltage, Reset Only, 32-50A Overload Range, Three Phase, NEMA 4X, Non-Metallic, Non-Reversing, Non-Combination Across the Line Starter, M06 Box Dimensions: 13 x 7.5 x 5.6" (HWD)
$304.56$304.56
A motor starter is a contactor plus an overload relay; without an overload it is just a contactor.
A motor starter starts and stops a connected motor load and will provide protection in case of a sudden loss of power or if the motor overloads. A contactor is similar to a relay (but can handle larger amounts of electrical power and handle higher voltage loads) and is used for switching current on and off in a circuit. Contactors are used to control electrical loads and motors without providing overload protection.
a.k.a. motor starter, IEC contactor, dp contactor, thermal overload relay, motor protectors