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Motor Starter Contactors

Motor starter contactors are electrically operated switches that control the power that drives an electric motor. They are meant to handle the high volume of electric power needed by motors and are just what their name suggests: devices that start and stop electric motors safely and efficiently, using electromagnetic forces to open or close their contacts.

A motor starter contactor is an electrically controlled switch similar to a relay. A motor starter is a contactor that also has an overload relay. A motor starter contactor applies voltage to a contactor coil to close the contacts and to supply and interrupt electrical power to the circuit. A motor starter employs overload relays to protect the motor from load surges by shutting it down to prevent overheating.

Moving beyond simple on/off switching, motor starter contactors can also be equipped with something called auxiliary contacts. These power no other devices, save the switched motor current. They exist for control and signaling purposes, providing feedback to control systems, or even as a part of safety interlocks that would prevent a motor's unintended operation.

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ABB CR360L51403AAAZ Lighting Contactor
ABB CR360L51403AAAZ Lighting Contactor
$2724.54 $4662.00
General Electric Control Products Nema Power Devices Contactor AAAZ8379
ABB DP40C3P-F/PM Definite Purpose Contactor
ABB DP40C3P-F/PM Definite Purpose Contactor
$172.10 $294.48
DP40C3P-F/PM DP contactor provide outstanding performance in various HVAC, Food service equipment, refrigeration and welding applications and meet all relevant standards, including UL, CSA and IEC. Industry standard mounting plate provides easily accessible mounting holes.
ABB DP40C3P-1/B/CE Definite Purpose Contactor
ABB DP40C3P-1/B/CE Definite Purpose Contactor
$162.63 $278.28
DP40C3P-1/B/CE DP contactor provide outstanding performance in various HVAC, Food service equipment, refrigeration and welding applications and meet all relevant standards, including UL, CSA and IEC. Industry standard mounting plate provides easily accessible mounting holes.
ABB DP40C3P-2/PM Definite Purpose Contactor
ABB DP40C3P-2/PM Definite Purpose Contactor
$163.27 $279.36
DP40C3P-2/PM DP contactor provide outstanding performance in various HVAC, Food service equipment, refrigeration and welding applications and meet all relevant standards, including UL, CSA and IEC. Industry standard mounting plate provides easily accessible mounting holes.
ABB DP20C1P-1 Definite Purpose Contactor
ABB DP20C1P-1 Definite Purpose Contactor
$80.31 $137.43
DP20C1P-1 DP contactor provide outstanding performance in various HVAC, Food service equipment, refrigeration and welding applications and meet all relevant standards, including UL, CSA and IEC. Industry standard mounting plate provides easily accessible mounting holes.
ABB DP25C2P-4 Definite Purpose Contactor
ABB DP25C2P-4 Definite Purpose Contactor
$114.47 $195.87
DP25C2P-4 DP contactor provide outstanding performance in various HVAC, Food service equipment, refrigeration and welding applications and meet all relevant standards, including UL, CSA and IEC. Industry standard mounting plate provides easily accessible mounting holes.
ABB DP40C3P-F/B/CE Definite Purpose Contactor
ABB DP40C3P-F/B/CE Definite Purpose Contactor
$162.63 $278.28
DP40C3P-F/B/CE DP contactor provide outstanding performance in various HVAC, Food service equipment, refrigeration and welding applications and meet all relevant standards, including UL, CSA and IEC. Industry standard mounting plate provides easily accessible mounting holes.
ABB DP40C3P-2/B/CE Definite Purpose Contactor
ABB DP40C3P-2/B/CE Definite Purpose Contactor
$162.63 $278.28
DP40C3P-2/B/CE DP contactor provide outstanding performance in various HVAC, Food service equipment, refrigeration and welding applications and meet all relevant standards, including UL, CSA and IEC. Industry standard mounting plate provides easily accessible mounting holes.
ABB DPE40C3P-81 Definite Purpose Contactor
ABB DPE40C3P-81 Definite Purpose Contactor
$361.44 $618.45
ABB DPE40C3P-81 Definite Purpose Contactor
ABB DP50C3P-1SX Definite Purpose Contactor
ABB DP50C3P-1SX Definite Purpose Contactor
$376.49 $644.22
DP50C3P-1SX DP contactor provide outstanding performance in various HVAC, Food service equipment, refrigeration and welding applications and meet all relevant standards, including UL, CSA and IEC. Industry standard mounting plate provides easily accessible mounting holes.
ABB B7-40-00-P84 AF Contactor
ABB B7-40-00-P84 AF Contactor
$61.55 $423.48
The B7-40-00-P mini contactor is a compact 4 pole contactor with soldering pins. They are ideally suited for applications where reliability is a must and space is at a premium. Mini contactors are used in residential buldings, commercial buildings and industrial applications for the control of single or three-phase loads up to 5.5 kW (AC-3) and 20 A / 690 V (AC-1) or switching of control signals. Further features are the silent coil, a switch position indication and the integrated possibility for rail mounting. View More
ABB B7S-30-10-1.7 AF Contactor
ABB B7S-30-10-1.7 AF Contactor
$63.29 $270.57
The B7S-30-10 mini contactor is a compact 3 pole contactor with 1 auxiliary contact and screw terminals. They are ideally suited for applications where reliability is a must and space is at a premium. Mini contactors are used in residential buldings, commercial buildings and industrial applications for the control of single or three-phase loads up to 5.5 kW (AC-3) and 20 A / 690 V (AC-1) or switching of control signals. Due to the low coil consumption, this device can be directly controlled by a PLC. Further features are the noiseless and hum-free coil, the integrated protective circuit with diodes and additional overvoltage protection, a switch position indication and the integrated possibility for rail or wall mounting. Auxiliary contacts, View More