Totally enclosed three-phase asynchronous motors with an IP55 protection rating - IE2
"S" series three-phase electric motors are built in accordance with the international standards in force and respect energy standards for rotating machinery.
The motors are made from aluminium alloy for sizes between 56 and 132 and in cast iron for larger sizes. They are IC 411 self-ventilated in accordance with regulations, with an IP55 protection rating, insulation class "F" and "B" class over temperature, with tropicalization treatment. They have standard V.230Δ/400Y or V.400Δ/690Y voltage and frequency of 50 Hz.
It's possible to build special forced ventilation motors with encoders or tachometer dynamo and with a protection rating greater than IP55.
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