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Weg
PESWS-B50D15AX-RM71
Enclosed Starter, 50 Amp (50A) CWB Contactor, 120VAC Coil Voltage, Start/Stop, 32-50A Overload Range, Single Phase, NEMA 4X, Non-Metallic, Non-Reversing, Non-Combination Across the Line Starter, M06 Box Dimensions: 13 x 7.5 x 5.6 (HWD)
$256.08$256.08 -
Available Now! 
Available Now!LS Electric
1299001100
Overload Relay, MT-32 21.5A 3D, Class 20, Screw Terminals, Only Use with MC-9B, MC-12B, MC-18B, MC-32B, and MC-40B Series Contactors
$79.66$79.66 -
$133.50$133.50 -
$157.97$157.97 -
Carlo Gavazzi
CGT-12M-1.6
Overload Relay, Thermal, Miniature, Class 10 Bimetallic Overload for CGMS Contactors, Motor Protection Range 1-1.6 Amps (TOR 12M 1-1.6)
$43.97$43.97 -
Available Now! 
Available Now!Carlo Gavazzi
CGT-12M-6.0
Overload Relay, Thermal, Miniature, Class 10 Bimetallic Overload for CGMS Contactors, Motor Protection Range 4-6 Amps, (TOR 12M 4-6)
$29.56$29.56 -
Available Now! 
Available Now!Weg
CWC012-10-30V24
Mini Contactor, 12 Amp, 1NO Auxiliary Contacts, 3NO Power Poles, 180-208V 50Hz/208-240V 60Hz, Screw Terminal, IP20, 2.28 x 1.77 x 2.05" (HWD), CWC Series
$21.76$21.76 -
Available Now! 
Available Now!Weg
CWC07-01-30L03
Mini Contactor, 7 Amp, 3NO, 24VDC(LC), Screw Terminal, IP20, 58 x 45 x 52mm, 2.28 x 1.77 x 2.05" (HWD), CWC Series
$21.76$21.76 -
Weg
CWC07-10-30V04
Mini Contactor, 7 Amp, 1NO Auxiliary Contacts, 3NO Power Poles, 20V 50Hz/24V 60Hz, Screw Terminal, IP20, 2.28" x 1.77" x 2..05" (HWD), CWC Series
$16.85$16.85 -
Weg
ESW-B18D15E-R32
Enclosed Starter, 5hp@230V, 18A, 120V Coil, Reset Only, NEMA 1, NEMA 1, 11-17A Overload Range, 3 Phase, Metallic Enclosure, NEMA 1, Full Voltage, Non-Reversing, Non-Combination
$119.76$119.76 -
Weg
ESW-B18D39E-R32
Enclosed Starter, 5hp@230V, 18 Amp (18A), 480V Coil, Reset Only, 11-17A (RW27) Overload Range, 3 Phase, NEMA 1 Metallic Enclosure, Full Voltage, Non-Reversing, Non-Combination
$119.76$119.76 -
Weg
ESWS-B50V24E-RM70
Enclosed Starter, 50 Amp (50A) CWB Contactor, 208-240VAC Coil Voltage, Reset Only, 25-40A Overload Range, Single Phase, NEMA 1, Metallic Enclosure, Non Reversing Non-Combination Across the Line Starter, M06 Box: 13 x 7.5 x 5.6 (HWD)
$210.21$210.21
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