Features RS485 COMMUNICATION: The vector frequency converter has a RS485 communication interface, allowing parameter setting and other operations. EMERGENCY BREAKING: Frequency inverter has also built in brake unit, which can be connected with external brake resistor for emergency stop. EXCELLENT COOLING: Super large heat sink and small fan of this frequency converter ensures great heat dissipation, with low noise. USER FRIENDLY: Humanized keyboard and digital display screen of this variable frequency inverter offer maximum convenience for users. RELIABLE MATERIALS: Industrial flame retardant ABS plastic, high impact and heat resistance, all internal components are patch design, greatly increases the stability of the machine. Specification: Item Type: Variable Frequency Drive Material: ABS Storage Temperature: -25℃ to +55℃ Input Voltage: Three phase 340-440V AC 50-60Hz Output Voltage: Three phase 0-440V AC 0-400Hz Output Current: 9.4A Braking Resistor Selection: Braking Resistance Power: 500W Braking Resistance: 150Ω Package List:1 x Variable Frequency Drive1 x User Manual Package List 1 x Variable Frequency Drive 1 x User Manual