fully enclosed and self fan-cooled for boats,it features high efficiency ,big start-up torsion and energy saving etc; working conditions:temperature of cooling medium:≤50 °c,relative humidity of air≤95%;ramp±22.5°c;subject to the influence of frozen dew,salt fog,oil fog,mildew and impact vibration.connection mestod:Y connection for 3KW and below, connections for otherΔspecifications. suitable for ...