Motor starter, 3-phase, type MMS-32H with a range of 6-10A MMS-32H 10A

Motor protection circuit breakers – reliable drive protection

The MMS-32H motor circuit breaker is a key element in protecting electric motors, providing effective protection against overload and short circuit. The device is designed for use in three-phase installations, offering a setting range of 6-10A, making it an ideal solution for various industrial and commercial applications. The device's construction, based on a thermal-magnetic trip unit, guarantees a quick and precise response in the event of a failure, minimizing the risk of engine damage and production downtime.

Construction and functionality

The MMS-32H circuit breaker is characterized by a compact design in a housing with dimensions of 45 x 105 x 90 mm (width x height x depth). Its solid construction ensures durability and reliability even in harsh working conditions. The overload trip unit with a setting range of 6-10A allows you to adapt the protection to the specific needs of the application. Additional phase failure sensitivity increases the safety of engine operation, protecting it from the negative effects of voltage asymmetry. The tripping method – magnetic – ensures an instantaneous response to short circuits, cutting off the power and preventing more serious damage. The rated operating voltage in the range of 690…690 V allows the circuit breaker to be used in a wide spectrum of electrical installations.

Applications and benefits

The MMS-32H motor circuit breaker is used wherever reliable protection of electric motors is required:

• Industry: Protection of motors driving machines and production equipment.
• Construction: Protection of motors for pumps, fans and other equipment used in construction.
• Communication: Protection of drives in ventilation, air conditioning and cooling systems.
• Commercial installations: Protection of motors in HVAC (heating, ventilation, and air conditioning) systems and other electrical equipment.

Using this circuit breaker translates to:

• Increased safety: Effective protection of the motor against overload and short circuit minimizes the risk of failure and fire.
• Longer engine life: Precise protection prevents premature wear of the engine, extending its service life.
• Reduced repair costs: A quick response to failures limits the extent of damage, reducing repair or engine replacement costs.
• Reliable operation: Solid construction and high quality workmanship guarantee long-lasting and trouble-free operation of the device.
• Simple installation: A complete device in a housing makes installation and connection to the electrical installation easier. The IP20 degree of protection provides basic protection against touch and access to live parts.