Fuel/Emissions Strategy
• Meets U.S. EPA Tier 4 Final emission standards
and CARB certified for non-road mobile
applications at all 60 Hz ratings
Cat® C3.4B Diesel Engine
• Four-stroke diesel engine combines performance
and excellent fuel economy with minimum weight
• On-engine aftertreatment consists of NOx
Reduction System (NRS), Diesel Oxidation
Catalyst (DOC), and Diesel Particle Filter (DPF)
for service-free operation
• 500-hour oil change interval
• Electronic engine controls
• Engine block heater 110-120 VAC
Engine
• Cat C3.4B, heavy-duty, U.S. EPA Tier 4 Final
certified diesel engine
• NOx and engine-mounted DOC plus DPF canister
• Block heater, 110-120 VAC
• Requires Ultra Low Sulfur Diesel (ULSD) fuel
• Engine electrical system:
• 12V, DC electrical system
• 80A, DC charging alternator
• Electronic governor and engine controls
• Oil pressure, coolant temperature, and coolant
level shutdown switches
• Engine filtration system:
• Cartridge-type air filter with service indicator
• Cartridge-type fuel filter with upstream pre- filter
and water separator; requires ULSD fuel
• Spin-on, full-flow lube oil filter; requires API CJ-4
lube oil
Generator and Voltage Regulation
• Screen protected and drip-proof (IP23), selfregulating, 12-lead, 4-pole, brushless generator
• Sealed-for-life bearing
• Electrical design in accordance with IEC 60034-1,
EN 61000-6, NEMA MG 1-22, and CSA
• Self-excited for self protection against short circuits
• Voltage selection switch (3-position) mounted to
generator terminal box
– Optional
– Anti-condensation, space heater, 60-Watt, 110-
120 VAC
• Insulation system:
– Class H insulation system
– Windings impregnated in a thermo-setting
moisture-, oil-, and acid-resisting varnish
– Heavy coat of anti-tracking varnish for additional
protection against moisture or condensation
• AVR D350:
– Simplified operation and troubleshooting
– Equipped with NFC technology for
communication and configuration purposes
– Fully supported by Cat ET service tool
• Waveform distortion, THF, and TIF factors:
– Total distortion of voltage waveform with open
circuit between phases, or phase and neutral, on
the order of 1.8 total distortion < 4%, on a 3-
phase, balanced, harmonic-free load
– Total distortion < 2%, under no load
– Waveform: NEMA (TIF < 50)
– 2/3 pitch factor standard on all stator windings
ISO Prime — Output available with varying load
for an unlimited time. Average power output is
70% of the prime power rating. Typical peak
demand is 100% of prime rated ekW.
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