178b1378 Danfoss type used 3,1kVA IP20 frequency drive type vlt5003pt5b20ebr3dlf20a00. In 3x 380 to 500 volt 50/60Hz 3,8 3,4 ampere. Out 3x-0-Uin 0-1000Hz 4,1 3,4A 3,1kVA.