Remote Power by Marathon Engine Systems

	SYSTEM		ENGINE
Power	2.5 kW at 2,600 rpm	Lifetime	40,000-hour minimum/continuous operation
Voltages	110 VAC, 50 or 60 Hz; 48 VDC	Design	Four-stroke, naturally-aspirated, spark-ignited, cast-iron, large sump and oversized bearings
Fuel	Natural gas, 800 to 1,200 Btu/scf range (ratings at 1030) 44 standard ft3/hr at full load, 2,600 rpm at standard operating conditions. LPG, 1/2 gallon per hour at full load.	Safety	Automatic shutdown for low oil pressure, high coolant temperature, overspeed; de-energizing ignition shuts down fuel valve
Interfaces	Fuel ¾-in. female npt; power 7/16-in. – 24 x 1 in. long binding posts; serial communications port	Ignition	Solid-state, computer-controlled
Enclosure	Rugged 3/16-in. aluminum structural members with 1/8-in. aluminum skin	Starting	12 VDC powered by automotive gel-cell battery
Finish	Fully coated inside and out; top coat of polyurethane enamel	Speed	1,200 to 3,000 rpm with no load, 1,800 to 3,000 rpm under full load, software selectable
Openings	Louvers and screens on inlet and outlet for weather, insect, and vandal protection; filter on air inlet	Cooling	Liquid cooled
Weight	Operational, approximately 525 lb. (238 kg) with battery and carrying handles	Oil	Special long life, low deposit formation oil in 11.4-litre sump for 4,000+ hour change interval; full-pressure system.
Size	Approximately 41 in. (104 cm) L x 41 in. (104 cm) W x 36 in. (91 cm) H
Noise Level	Maximum 65 dB at 23 ft. (7 m)		ALTERNATOR
Environment	20°F to 110°F - 10,000 ft. (3,050 m) 100% relative humidity	Design	Bearingless, brushless, direct-drive, aluminum stator housing
		Regulation	AC units +/-3% on voltage, 0.1% on frequency; DC units +/-2% on voltage over full rpm range
	OPTIONS	Safety
Control	Cell phone or satellite communications for remote command/control, system monitoring, and data acquisition	Output	2.5 kW (delivered to load) for 110 VAC, 48 VDC with constant ac 50- or 60- Hz frequency, DC voltage over 1,800 to 3,000 rpm, lightning surge suppression
Environmental	Cold weather package Low-noise package for sound-sensitive sites	Ripple	At full load, 48 VDC units – 1.8 V peak to peak
		Distortion	AC unit total harmonic distortion is less than 5%
		Noise/EMI	Metal isolation compartment eliminates radiation – no problem with on-board cellular phone system

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