Pwr. regeneration converter unit with forced ventilation cooling - Mitsubishi Electric (MELSERVO J4 series) - Rated output 37kW - Rated current 82A - Supply voltage 380Vac-480Vac (400V class; 400Vac / 415Vac / 440Vac) (3-phase input (3P)) - IP20 - rated for 0...+55°C ambient - equivalent to MRCV37K4