48 Volt, 60 Amp Alternator (2.9kW) J-180 4" Dual Foot Mounting, Isolated Ground

The Balmar 96-48-60-K6-IG is a 60-amp, 48-volt marine alternator delivering 2.9 kW of charging power, from the 96-Series that Balmar designed for emerging 48-volt battery banks and inverter systems. A 48-volt architecture supports more efficient chargers and inverters, smaller cable sizes and strong alternator output in a reasonable package, and it is well matched to lithium banks that accept very high charge rates. A low 1,325 RPM turn-on threshold lets the alternator make power early in the rev range, reducing the need for complex pulley schemes or over-throttling at idle. This version, the K6-IG, adds an isolated-ground terminal so the charging output can be kept electrically separate from the alternator case and engine block. It uses a large-case, positive field excitation design with dual internal cooling fans, sealed heavy-duty bearings and a ventilated cast-aluminium case with a clear-anodised finish, mounting on a 4 inch dual-foot saddle in the J-180 style with a K6 serpentine pulley and handling up to 8 horsepower of power take-off. It runs exclusively with the Balmar MC-620 multi-stage regulator, which requires its own 12-volt supply; the alternator will not operate without it, and for lithium banks the MC-620 disables charging at or below 0 C using the MC-TS-A and MC-TS-B temperature sensors.