LSiS MC-18b 3-Pole Contactor, 18A, 7.5kW, 24V DC Coil, 1NO+1NC Auxiliary Contacts

The LSiS MC-18b is a high-performance 3-pole industrial contactor engineered for reliable switching of electrical loads in demanding environments. With a rated capacity of 18A and 7.5kW, this contactor is designed to manage power distribution and motor control tasks with precision. It features a 24V DC control coil and includes integrated 1NO and 1NC auxiliary contacts, providing versatile connectivity for complex automation systems.

Advantages

This contactor stands out due to its robust construction and consistent operational reliability. The integration of auxiliary contacts simplifies the wiring process for control circuits, while the 24V DC coil ensures compatibility with standard industrial automation controllers. Its compact design allows for efficient use of space within electrical cabinets, and the high-quality materials used in its manufacturing guarantee a long service life even under frequent switching cycles.

Suitable for

• Industrial motor control systems
• Power distribution panels
• Automation and control logic circuits
• Heating and lighting control applications

When it may not be suitable

This device is not intended for use in high-voltage applications exceeding its rated capacity or in environments with extreme moisture or corrosive gases without appropriate protective enclosures. It is also not suitable for AC control voltage systems unless an external power supply is used to convert the signal to 24V DC.

Key specifications

• Number of poles: 3
• Rated operational current: 18A
• Rated power capacity: 7.5kW
• Control 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. Mount the contactor onto a standard DIN rail or a flat surface within a control panel. Connect the main power lines to the primary terminals and wire the 24V DC control signal to the coil terminals. Ensure that the auxiliary contacts are wired according to your specific control logic requirements. Always verify that all connections are tightened to the specified torque before energizing the system.

What to consider before purchase

• Verify that your control system provides a 24V DC signal.
• Ensure the motor or load power requirements do not exceed 7.5kW.
• Check available space in your electrical enclosure for mounting.
• Confirm that the auxiliary contact configuration meets your feedback or interlocking needs.

Usage recommendations

Regularly inspect the terminal connections for tightness and ensure the contactor is free from dust or debris accumulation to maintain optimal performance and prevent overheating.