Resistors, dedicated for use with MCRF-ST 10kW frequency inverters 6 OHM MCRF-ST 10KW 6 OHM

Braking resistors for frequency inverters – effective energy dissipation

The MCRF-ST 10kW 6 Ohm braking resistor is a key component in installations using frequency inverters (drives). Its task is to safely dissipate the energy generated during motor braking, converting it into heat. Using a resistor prevents exceeding the permissible voltages in the inverter circuit and protects it from damage. This is especially important in applications requiring frequent and dynamic braking, such as cranes, hoists, elevators or packaging machines.

Design and application

Resistors from the MCRF-ST series are dedicated to working with LS Electric inverters, but can be used with other brands after selecting appropriate parameters. They are characterized by compact dimensions (550 x 260 x 252 mm) and a safe housing, which facilitates installation and provides protection against accidental contact. A built-in PTC (Positive Temperature Coefficient) sensor monitors the resistor temperature and, if it is exceeded, limits the current flow, protecting it from overheating and damage.

Advantages and benefits

• Effective energy dissipation: A 10 kW and 6 Ohm resistor effectively dissipates braking energy, ensuring stable inverter operation.
• Inverter protection: Prevents overvoltage in the inverter circuit during braking, protecting it from failures and extending its lifespan.
• Safety: A safe housing and PTC sensor minimize the risk of electric shock and damage to the resistor.
• Compact dimensions: Facilitate installation even in limited space.
• Dedicated to LS Electric: Optimal cooperation with inverters of this brand guarantees reliable operation of the braking system.
• Versatility: Possibility of use with other brands of inverters after proper parameter selection.

Additional information

Braking resistors are manufactured by LS Electric in South Korea (Country of origin: KR). A resistance value of 6 Ohm is optimal for inverters with a power of 10 kW, ensuring effective braking while protecting the circuit components. Selecting the right braking resistor is crucial for the correct operation of the motor control system – a value that is too low can lead to an overload of the inverter, and a value that is too high – to inefficient braking.