LS MMS-32S Motor Protection Circuit Breaker, 0.25 - 0.4A

The LS MMS-32S motor protection circuit breaker is a high-quality electrical component engineered for the manual control and comprehensive protection of electric motors. This device is specifically designed to handle currents ranging from 0.25A to 0.4A, offering a robust solution for preventing electrical faults in various industrial and commercial environments. By integrating both thermal and magnetic trip mechanisms, it ensures that motors are shielded from damaging overloads and short circuits, thereby extending the service life of your equipment.

Advantages

This motor protection circuit breaker stands out due to its compact design, which allows for efficient use of space within electrical control panels. The adjustable thermal release feature provides precise calibration to match the specific requirements of the connected motor, ensuring reliable operation. Its durable construction is built to withstand demanding conditions, providing consistent performance and enhanced safety for electrical systems. The intuitive manual operation allows for quick and easy control, making it a practical choice for maintenance and daily management of motor-driven machinery.

Suitable for

• Industrial motor control systems
• Commercial HVAC equipment
• Pump and fan motor protection
• Conveyor belt drive systems
• Small-scale automation machinery

When it may not be suitable

This device is not intended for use in high-current applications exceeding its specified range of 0.25 to 0.4A. It is also not suitable for environments where specialized explosion-proof or high-ingress protection ratings are required without an additional protective enclosure.

Key specifications

• Current adjustment range: 0.25A to 0.4A
• Protection type: Thermal and magnetic release
• Operation: Manual control
• Application: Motor protection
• Design: Compact modular unit

How to use

The LS MMS-32S should be installed by a qualified professional within a suitable electrical enclosure. Mount the device onto a standard DIN rail and connect the power supply and motor cables according to the wiring diagram provided in the technical documentation. Once installed, adjust the thermal release dial to the rated current of the motor being protected. The device can be manually switched on or off using the front-mounted toggle, and it will automatically trip in the event of an overload or short circuit.

What to consider before purchase

• Verify the full-load current of your motor matches the 0.25A to 0.4A range.
• Ensure the installation environment meets standard industrial requirements.
• Check compatibility with your existing control panel and DIN rail setup.

Usage recommendations: Regularly inspect the circuit breaker for signs of wear or debris. After a trip event, always investigate the cause of the fault before resetting the device to ensure continued operational safety.