... Alternator features: 1) Brush-less, 4 poles, rotation magnet 2) IP21-23 (NEMA1) enclosure is standard for all industrial ... flange adaptors and single bearing disc coupling 6) Standard 2/3 pitch windings avoid excessive neutral currents Accessories: 1) ... silencer, flexible pipe, battery and connecting wires, operation manual and document 2) Optional accessories: Engine coolant and oil heater, alternator ...