LS MMS-32H 22A Motor Circuit Breaker, 14-22A

The LS MMS-32H 22A motor circuit breaker is a robust and reliable solution engineered for the comprehensive protection and control of electric motors. This device serves as a critical component in industrial automation, effectively managing motor operations while safeguarding electrical circuits from potential damage. Its compact design allows for efficient space utilization in control panels, making it a versatile choice for modern electrical installations.

Advantages

This motor circuit breaker offers precise thermal release adjustment, allowing users to fine-tune the protection range between 14A and 22A to match specific motor requirements. By integrating both overload and short-circuit protection into a single unit, it simplifies system architecture and reduces the need for additional protective components. The high-performance construction ensures long-term durability and consistent operational safety, which is essential for maintaining the longevity of connected equipment in demanding industrial environments.

Suitable for

• Industrial motor control systems
• HVAC equipment and ventilation fans
• Conveyor belt systems and material handling
• Pump control applications
• Automation and manufacturing machinery

When it may not be suitable

This device is not intended for use in circuits exceeding its rated current range of 14-22A or for applications requiring protection against ground faults unless additional specialized equipment is installed. It is also not suitable for environments that exceed the manufacturer's specified temperature or humidity ratings.

Key specifications

• Thermal release range: 14-22A
• Device type: Motor circuit breaker
• Functionality: Overload and short-circuit protection
• Design: Compact modular construction

How to use

Installation should be performed by a qualified professional in accordance with local electrical codes. The device is typically mounted on a standard DIN rail within an electrical enclosure. Once mounted, connect the power supply to the input terminals and the motor leads to the output terminals. Use the adjustment dial on the front of the unit to set the thermal release current to the specific nominal current of the motor being protected. After installation, verify the connections and perform a test operation to ensure the breaker functions correctly under load.

What to consider before purchase

• Verify that the motor's nominal current falls within the 14-22A range.
• Ensure the enclosure provides adequate space and ventilation for the device.
• Check compatibility with existing DIN rail mounting systems.
• Confirm that the electrical system voltage is within the operational limits specified by the manufacturer.

Usage recommendations

Regularly inspect the device for signs of wear or thermal damage and ensure that the thermal release setting remains calibrated to the motor's current requirements. Periodic testing of the trip mechanism is recommended to maintain optimal safety standards.