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Home Industrial automation Contactors and protection devices for industrial control

Contactors and motor protection devices

Contactors and protection devices for industrial control are used for switching, starting and protecting electric motors, electrical loads and control circuits. They form an essential part of industrial automation, distribution panels, production machinery, ventilation systems, pumps and other electric-drive applications.

The category includes contactors, contactor accessories, motor protection circuit breakers, magnetic starters and thermal overload relays. Important selection criteria include the load type, rated current, control voltage, motor power, auxiliary-contact configuration and required protection functions. Electrically and mechanically compatible components make it possible to create a clear and application-appropriate control solution.

Contactor and mounting accessories Contactor and mounting accessories Contactors for load and motor control Contactors for load and motor control Magnetic motor starters Magnetic motor starters Motor protection circuit breakers and protective devices Motor protection circuit breakers and protective devices Thermal overload relays for motor protection Thermal overload relays for motor protection
Image Product Name Unit Price Product Code Availability Quantity
SC-DN02 top mounted auxiliary contact 2NC SC-DN02 top mounted auxiliary contact 2NC 2.68€ SC-DN02
Stock products
SC-DN20 top mounted auxiliary contact 2NO SC-DN20 top mounted auxiliary contact 2NO 2.68€ SC-DN20
Stock products
SC-0910 220V 4kW - 9A motor contactor SC-0910 220V 4kW - 9A motor contactor 9.41€ SC-0910220
Stock products
SC-1210 220V 5,5kW - 12A motor contactor SC-1210 220V 5,5kW - 12A motor contactor 10.13€ SC-1210220
Stock products
SC-1810 220V 7,5kW - 18A motor contactor SC-1810 220V 7,5kW - 18A motor contactor 11.05€ SC-1810220
Stock products
MC03 housing IP55 MC03 housing IP55 19.26€ MC03
Stock products
MPG32 4-6.3A motor protection circuit breaker MPG32 4-6.3A motor protection circuit breaker 26.76€ MPG32-6.3
Stock products
MPG32 6-10A motor protection circuit breaker MPG32 6-10A motor protection circuit breaker 26.76€ MPG32-10
Stock products
MPG32 9-14A motor protection circuit breaker MPG32 9-14A motor protection circuit breaker 26.76€ MPG32-14
Stock products
MPG32 13-18A motor protection circuit breaker MPG32 13-18A motor protection circuit breaker 26.76€ MPG32-18
Stock products
MPG32 1-1.6A motor protection circuit breaker MPG32 1-1.6A motor protection circuit breaker 26.76€ MPG32-1.6
Stock products
MPG32 17-23A motor protection circuit breaker MPG32 17-23A motor protection circuit breaker 30.64€ MPG32-23
Stock products
SC-DN11 top mounted auxiliary contact 1NO+1NC SC-DN11 top mounted auxiliary contact 1NO+1NC 2.68€ SC-DN11
Stock products
MPG32 20-25A motor protection circuit breaker MPG32 20-25A motor protection circuit breaker 30.64€ MPG32-25
Stock products
LC1K 1210 24V 5,5kW - 12A miniature contactor LC1K 1210 24V 5,5kW - 12A miniature contactor 11.46€ LC1K1210024V
Stock products
MPG32 1.6-2.5A motor protection circuit breaker MPG32 1.6-2.5A motor protection circuit breaker 26.76€ MPG32-2.5
Stock products
LC1K 1210 220V 5,5kW - 12A miniature contactor LC1K 1210 220V 5,5kW - 12A miniature contactor 11.46€ LC1K1210220V
Stock products
MPG32 24-32A motor protection circuit breaker MPG32 24-32A motor protection circuit breaker 30.64€ MPG32-32
Stock products
LC1K 1601 24V 7kW - 16A miniature contactor LC1K 1601 24V 7kW - 16A miniature contactor 12.25€ LC1K1601024V
Stock products
MPG32 2.5-4A motor protection circuit breaker MPG32 2.5-4A motor protection circuit breaker 26.76€ MPG32-4.0
Stock products
SC-DN02 top mounted auxiliary contact 2NC
SC-DN02 top mounted auxiliary contact 2NC Product Code: SC-DN02 Stock products 2.68€
SC-DN20 top mounted auxiliary contact 2NO
SC-DN20 top mounted auxiliary contact 2NO Product Code: SC-DN20 Stock products 2.68€
SC-0910 220V 4kW - 9A motor contactor
SC-0910 220V 4kW - 9A motor contactor Product Code: SC-0910220 Stock products 9.41€
SC-1210 220V 5,5kW - 12A motor contactor
SC-1210 220V 5,5kW - 12A motor contactor Product Code: SC-1210220 Stock products 10.13€
SC-1810 220V 7,5kW - 18A motor contactor
SC-1810 220V 7,5kW - 18A motor contactor Product Code: SC-1810220 Stock products 11.05€
MC03 housing IP55
MC03 housing IP55 Product Code: MC03 Stock products 19.26€
MPG32 4-6.3A motor protection circuit breaker
MPG32 4-6.3A motor protection circuit breaker Product Code: MPG32-6.3 Stock products 26.76€
MPG32 6-10A motor protection circuit breaker
MPG32 6-10A motor protection circuit breaker Product Code: MPG32-10 Stock products 26.76€
MPG32 9-14A motor protection circuit breaker
MPG32 9-14A motor protection circuit breaker Product Code: MPG32-14 Stock products 26.76€
MPG32 13-18A motor protection circuit breaker
MPG32 13-18A motor protection circuit breaker Product Code: MPG32-18 Stock products 26.76€
MPG32 1-1.6A motor protection circuit breaker
MPG32 1-1.6A motor protection circuit breaker Product Code: MPG32-1.6 Stock products 26.76€
MPG32 17-23A motor protection circuit breaker
MPG32 17-23A motor protection circuit breaker Product Code: MPG32-23 Stock products 30.64€
SC-DN11 top mounted auxiliary contact 1NO+1NC
SC-DN11 top mounted auxiliary contact 1NO+1NC Product Code: SC-DN11 Stock products 2.68€
MPG32 20-25A motor protection circuit breaker
MPG32 20-25A motor protection circuit breaker Product Code: MPG32-25 Stock products 30.64€
LC1K 1210 24V 5,5kW - 12A miniature contactor
LC1K 1210 24V 5,5kW - 12A miniature contactor Product Code: LC1K1210024V Stock products 11.46€
MPG32 1.6-2.5A motor protection circuit breaker
MPG32 1.6-2.5A motor protection circuit breaker Product Code: MPG32-2.5 Stock products 26.76€
LC1K 1210 220V 5,5kW - 12A miniature contactor
LC1K 1210 220V 5,5kW - 12A miniature contactor Product Code: LC1K1210220V Stock products 11.46€
MPG32 24-32A motor protection circuit breaker
MPG32 24-32A motor protection circuit breaker Product Code: MPG32-32 Stock products 30.64€
LC1K 1601 24V 7kW - 16A miniature contactor
LC1K 1601 24V 7kW - 16A miniature contactor Product Code: LC1K1601024V Stock products 12.25€
MPG32 2.5-4A motor protection circuit breaker
MPG32 2.5-4A motor protection circuit breaker Product Code: MPG32-4.0 Stock products 26.76€

Components for controlling and protecting electrical loads

Contactors and motor protection devices support the remote switching, starting, stopping and monitoring of electric motors and other power loads. A contactor switches the main electrical circuit in response to a control signal, while protection devices help respond to overloads, phase-related faults and other unsuitable operating conditions.

Depending on the control task, the system may use individual components or a coordinated starting and protection solution. Magnetic starters can combine switching, control and protection elements within one assembly, while contactor accessories extend the functions available in the control circuit.

Main product types

  • Contactors are intended for frequent switching of motors, heaters, lighting and other electrical loads.
  • Contactor accessories include auxiliary contacts and other components that expand control functions.
  • Motor protection circuit breakers are used to switch motor circuits and protect them against specified electrical faults.
  • Magnetic starters provide convenient motor starting and stopping through suitable control devices.
  • Thermal overload relays monitor the motor load and help protect the motor against sustained overload.

How to select suitable components

Consider the rated current and power of the load, utilisation category, number of main poles, control-coil voltage and type, auxiliary-contact arrangement, adjustment range and mounting method. When designing a motor-control circuit, verify the electrical and mechanical compatibility of all components. Product selection, adjustment and installation must follow the electrical design, manufacturer’s instructions and applicable electrical safety requirements.