Resistors, dedicated for use with MCRF 1.2kW 60 OHM frequency inverters MCRF 1.2KW 60 OHM

Braking resistors for frequency inverters – the key to effective braking

The MCRF 1.2kW 60 OHM resistor is an element dedicated to working with frequency inverters, designed to effectively manage the energy generated during motor braking. In the regenerative braking process, excess energy must be dissipated, and the resistor converts it into heat, ensuring stable system operation. This particular model, with a power of 1.2kW and a resistance of 60 Ohm, is particularly well suited for inverters with a power of up to 7.5kW.

Design and application

The MCRF resistor is characterized by its compact dimensions and a safe housing, which facilitates installation and provides protection against mechanical damage. It is a component dedicated to LS Electric inverters, but due to its standard parameters, it can also be used with other brands after verifying compatibility. Its main task is to limit the voltage in the inverter's DC link during motor braking, preventing it from overloading and failing.

Advantages and benefits

• Effective energy dissipation: The resistor effectively dissipates the energy generated during motor braking, protecting the inverter from damage.
• Dedicated to LS inverters: Optimization for cooperation with LS Electric devices ensures system reliability and efficiency.
• Compact dimensions: Allow for easy integration with existing installations, even in limited space.
• Safe design: Provides protection against external factors and mechanical damage.
• Application in regenerative braking mode: Allows for controlled stopping of the motor without the risk of damage to the inverter or other drive components.
• Duty cycle ED=5%: The standard value of the duty cycle (ED) is 5%, which means that the resistor can operate at full power for 5% of the time in a cycle, and the remaining 95% of the time it must cool down or operate at lower power. To extend the operating time, a resistor with higher power should be selected while maintaining the same resistance value.

Braking resistors are an essential element of electric motor control systems, ensuring the safety and reliability of devices in demanding industrial conditions. Choosing the right resistor, such as the MCRF 1.2kW 60 OHM, is crucial for the proper functioning of the entire drive system.