Brake resistor for inverters ATV930D75N4 - D90N4, ATV950D75N4 - D90N4, ATV950D75N4E - D90N4E. Reference values for an average braking cycle. Power 6.9 kW, protection class IP23, resistance 5 Ω at 20 °C. Supply voltage 200-240 V or 380-480 V, 50/60 Hz. Load factor for resistors: The value of the average power that can be dissipated from the resistor into the housing at 50 °C. Determined for a load factor during braking, which corresponds to the majority of common applications. Standard overload: 4 seconds of braking at a braking torque of 1.35 Tn for a cycle of 40 seconds. High overload: 4 seconds of braking at a braking torque of 1.65 Tn for a cycle of 40 seconds. Required quantity per inverter: 1.