• Exterior View


Rating 375 ekW (470 kVA) Standby
Frame Size SR4B – 450
Pitch 1
Number of bearings Single bearing, close coupled
Insulation Class H
Temperature rise 105 C
Rating 375 ekW (470 kVA) Standby
Frame Size SR4B – 450
Pitch 1
Number of bearings Single bearing, close coupled
Insulation Class H
Temperature rise 105 C
Enclosure Drip proof IP23
Prime Rating 340 kW
Overspeed capability – % of rated 125% of rated
Voltage regulator 3 phase sensing with Volts-per-Hertz
Voltage regulation Less than ± 1⁄2% voltage gain Adjustable to compensate for engine speed droop and line loss
Wave form deviation 3%
Telephone Influence Factor (TIF) Less than 50
Harmonic Distortion (THD) Less than 5%
Rating 340 ekW (425 kVA)
Rating Standby 375 ekW (469 kVA)
IPP Rated 60Hz 74 dB(A)
Generator Set
Voltage 120 - 600 V
Frequency 50/60 Hz
Rating Prime 340 ekW (425 kVA)
Rating Standby 375 ekW (469 kVA)
Engine C13
Fuel Diesel
Cat® Diesel Engines C13 ATAAC, I-6 4-stroke water cooled diesel
Bore 5 in
Stroke 6 in
Displacement 763 in3
Compression ratio 17.0:1
Engine RPM 1500-1800
Aspiration TA
Aftercooler type ATAAC
Turbocharger Single
Fuel system MEUIC
Governor type ADEM™ A4
Fuel Requires ULSD
Cat® Diesel Engines C13 ATAAC, I-6 4-stroke water cooled diesel
Width - Without Trailer 104 in
Width - With Trailer 102 in
Height - Without Trailer 60 in
Height - With Trailer 126 in
Length - Without Trailer 209 in
Length - With Trailer 284 in
Weight - Without Trailer, With Lube Oil and Coolant 14,700 lb
Weight - With Trailer, Lube, Oil and Coolant 17,930 lb
Weight 14,700 lb
Weight with Lube Oil and Coolant, Without Trailer 14,700 lb
Fuel Consumption Prime
100% Load 60Hz Prime 23 gal/hr
75% Load 60Hz Prime 18 gal/hr
50% Load 60Hz Prime 13 gal/hr
Fuel Consumption Standby
100% Load 60Hz Standby 25 gal/hr
75% Load 60Hz Standby 19 gal/hr
50% Load 60Hz Standby 14 gal/hr
Fuel Consumption
100% Load 60Hz 25 gal/hr
100% Load 60Hz 23 gal/hr
75% Load 60Hz 18 gal/hr
50% Load 60Hz 13 gal/hr
75% Load 60Hz 19 gal/hr
50% Load 60Hz 14 gal/hr
Noise rating (with enclosure)
Sound Power @ 7 meters (23 feet) @ All Ratings 74 dB(A)

Rental ready

Robust, durable product with a range of rental ready features to meet job requirements and applications.

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 C13 Diesel Engine

Industry proven reliability

CAT EMCP 4.2 digital controls

Easy to use digital controls

Cat SR4B Series Generator

Integrated voltage regular for fast response in demanding applications

Sound Isolated Operator panel

Improved operator comfort

Cat Connect

Remote monitoring for fleet management and asset tracking

Factory designed, built and tested

Single-source Supplier

Worldwide Product Support

  • Cat dealers have over 1,800 dealer branch stores operating in 200 countries
  • Your local Cat dealer provides extensive post-sale support, including maintenance and repair agreements

500 hr oil change intervals

Reducing operating costs and producing less waste

Improved transportability

Lifting frame, 4 point lift and trailers

Power Distribution

Distribution sockets

Additional options

Synchronising controls.
Extended Service interval kits
600V generator
208V 3-phase NEMA Sockets

  • Cat C13 Diesel Engine
    • Heavy-duty.
      After treatment
  • Generator
    • SR4B - 450 Frame
  • Control Panel
    • Digital EMCP4.2 set mounted controller
  • Cat Connect Remote Monitoring
    • Provides package monitoring and management
  • Cooling System
    • Package mounted radiator with vertical air discharge.
      Filled from factory
  • Charging / Starting System
    • 12V heavy duty starting motor and charging alternator c/w battery isolator
  • Fuel System
    • 24 hour dual wall fuel tank with 3 way directional valve for external supply
  • Air Filter
    • Cyclonic/paper with dust cup and service indicator
  • Distribution
    • Single, robust enclosure for controls and distribution c/w 4 pole circuit breaker and safety cut off
  • Structure
    • Heavy Duty steel base frame with integral fuel tank.
      Lifting frame and 4 point lift.
      base frame is wider than enclosure to protect generator set during transportation
  • Enclosure
    • Sound attenuating, galvanised steel enclosure with exceptional noise reduction performance
  • Exhaust
    • Integrated spark arresting silencer
  • Lube Oil
    • On engine primary and secondary oil filters. Filled from factory
  • General
    • Factory tested and inspected