-
Weg
RWM420E-3-R4U420
Overload Relay, Solid State, 3 Pole, 85-420A, Adjustable Trip Class: 10, 20 or 30, Selectable Local and Remote Reset Modes, Use with CWM112 to CWM500 Contactor Models
$347.20$347.20 -
Weg
RWM840E-3-R4U840
Overload Relay, Solid State, 3 Pole, 170-840A, Adjustable Trip Class: 10, 20 or 30, Selectable Local and Remote Reset Modes, Use with CWM150 to CWM800 Contactor Models
$772.80$772.80 -
$122.50$122.50
-
$51.96$51.96
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