... shall be mounted on a same frame steel skid 2) Built-in damper for anti-vibration 3) Small size, low weight, easy to ... , rotation magnet 2) IP21-23 (NEMA1) enclosure is standard for all industrial alternators 3) The insulation system is class H ... accessories: Engine coolant and oil heater, alternator space heater, cooling for heat exchanger, control system with RS232/485, communication interface, ...