LSiS MC-22b 3-Pole Contactor, 22A, 11kW, 24V DC Coil, 1NO+1NC Auxiliary Contacts

The LSiS MC-22b is a high-performance 3-pole electromagnetic contactor engineered for reliable power switching and motor control in industrial environments. This device is built to handle demanding electrical loads, offering a rated current of 22A and a power capacity of 11kW at 400V. With its compact design and integrated auxiliary contacts, it provides a versatile solution for modern automation systems requiring precise circuit management.

Advantages

The primary benefit of the LSiS MC-22b contactor is its robust construction, which ensures long-term operational reliability even in intensive industrial settings. The inclusion of a 24V DC coil allows for seamless integration into low-voltage control circuits, enhancing safety and compatibility with standard PLC systems. Furthermore, the built-in 1NO+1NC auxiliary contacts offer flexibility for feedback and interlocking applications, reducing the need for additional components and simplifying the overall installation process.

Suitable for

• Industrial motor control systems
• Heating and lighting circuit switching
• Automation and control panels
• Pump and fan control applications

When it may not be suitable

This contactor is not intended for high-voltage applications exceeding its rated capacity or for environments with extreme corrosive gases that could damage the internal contacts. It is also not suitable for direct AC control circuits without a compatible DC power supply for the coil.

Key specifications

• Number of poles: 3
• Rated current: 22A
• Power capacity: 11kW at 400V
• Coil voltage: 24V DC
• Auxiliary contacts: 1NO + 1NC

How to use

Installation should be performed by a qualified electrician in accordance with local electrical codes. The contactor is designed for DIN-rail or screw mounting within an electrical enclosure. Connect the main power lines to the primary terminals and the 24V DC control signal to the coil terminals. Ensure that all connections are tightened to the specified torque to prevent overheating. The auxiliary contacts can be wired into your control logic to provide status feedback or safety interlocks.

What to consider before purchase

• Verify that your control system provides a stable 24V DC power supply.
• Ensure the motor or load current does not exceed the 22A rating.
• Check the available space in your control cabinet for mounting.
• Confirm that the auxiliary contact configuration meets your specific logic requirements.

Usage recommendations

Regularly inspect the terminal connections for tightness and ensure the contactor is kept free of dust and moisture to maintain optimal performance and extend the service life of the device.