The QC series is where the Baumalight generator line goes three phase, and the voltage is the decision a buyer makes first. One machine is offered in five electrical configurations, and the right one is set by the service being backed up rather than by the machine: single phase for a shop or an office, 120/208 or 120/240 three phase for equipment motors, 277/480 for an industrial service, and 347/600 for the distribution most common across Canada. It is built for contractors, utility crews and facilities that already run a tractor and need three phase standby or remote power without a dedicated engine-driven set.

Each configuration is reached by how the alternator is connected rather than by a different machine, and the supplier names the connection for each one: dedicated, parallel low WYE, series high delta or series high WYE. That is why the frame, the trailer, the gearbox and the monitor are the same whichever voltage is ordered, and why the tractor is sized from one set of load figures per configuration. Inside is a cast-iron, four-pole, brushless genset on four oversized copper windings, geared to turn well below engine speed for duty cycle rather than for peak output, with automatic voltage regulation holding output within 1 percent from 64 down to 56 Hz and the DisplayMaster1 putting voltage, frequency, amperage, kW, kVA, power factor, run time and peak and average kVA on one screen. The 277/480 volt units carry a different panel and breaker and no welder or duplex receptacles, and the QC75-6 runs on the tractor's higher PTO speed, so check the panel and the PTO range against the job before choosing. Pick the voltage from the service and size the tractor from the full-load column.

Common Applications

• Three phase standby power for a shop, service building or facility during an outage
• Remote power at a jobsite from a tractor already on site
• Running equipment motors away from a permanent service
• Feeding a welder from the 50 amp welder receptacle on the 120/240 configurations

Selection Notes

• Choose the voltage before the output. Each configuration is a different part number and a different price, and the same nominal model can be ordered in up to four of them.
• Size the tractor against the 100 percent load column if the generator will run near its rating, not against the 50 percent column.
• The three 277/480 volt configurations are rated at 33, 50 and 76 kW. Confirm the rating before ordering against a load calculation that is tight at the top.
• The 277/480 volt units carry a different connection panel and breaker and no welder receptacle or 20 amp duplex receptacles.
• The QC75-6 runs at a 1,000 rpm PTO speed rather than 540. Check the tractor has that PTO range.
• The 120/208 volt units carry a 208 volt welder receptacle; the 120/240 units carry 240 volt; the 277/480 and 347/600 units carry none.
• The QC12 ships with a 50 amp range plug on the 10 ft cord rather than the 175 amp Anderson connector fitted to the rest of the line.
• Ask if a configuration above 76 kW, or a 27 or 50 kW unit at 347/600 volt, is needed.
• Never mount a generator directly onto concrete, rock, metal or soil. The supplier's rubber mount kit, D001478, four isolators to a set, goes under the tires on a concrete pad.
• The 10 ft cord is included. The supplier cuts generator cable to any length at added cost, a three phase run needs four strands of wire, and the trailer jack, G2107, is a separate part.