Perkins 1103A-33G Diesel Generator Set – 3.3L Engine with Leroy Somer / Stamford Alternator

The Perkins 1103A-33G generator set is engineered for low to mid-range power applications requiring high durability and minimal maintenance. Driven by a naturally aspirated, 3-cylinder vertical inline diesel engine with a displacement of 3.3 litres, it features mechanical governing compliant with ISO 8528-1 G2 standards. The powertrain is integrated with a robust brushless alternator—either Leroy Somer TAL-044-B or Stamford UCI224C—ensuring consistent voltage regulation at ±1%. This generator set is designed for light commercial, construction, and auxiliary backup applications with excellent fuel efficiency and easy service access.

 Specifications:

– Engine Make: Perkins
– Engine Model: 1103A-33G
– Number of Cylinders: 3 (Vertical In-line)
– Cycle: 4-Stroke Diesel
– Aspiration: Naturally Aspirated
– Cooling Method: Water Cooled
– Governing Type: Mechanical
– Governing Class: G2 – ISO 8528-1
– Compression Ratio: 17.25:1
– Displacement: 3.3 Litres
– Bore x Stroke: 105 mm x 127 mm
– Fuel System: Direct Injection
– Fuel Filters: Spin-on Type with Water Separator
– Lube Oil Filter: Full Flow Filter
– Lubrication Oil Capacity: 8.3 Litres
– Starting System: 12V Electric Starter
– Charging Alternator: 45 Amp, 12 Volt
– Alternator Make: Leroy Somer / Stamford
– Alternator Model: TAL-044-B (Leroy Somer) / UCI224C (Stamford)
– Type: Brushless, Self-Excited
– Excitation System: Self Excited
– AVR Model: R150
– Number of Poles: 4
– Winding Leads: 6
– Bearing Type: Single Bearing
– Insulation Class / Temp Rise: H Class / 125°C (at 40°C Ambient)
– Ingress Protection Rating: IP23
– Voltage Regulation: ±1%
– Over Speed: 2250 RPM
– Harmonic Coefficient (THF): < 2.5%
– Telephone Influence Factor (TIF): < 50
– Cooling Air Flow: 0.20 m³/sec

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