DE550E3 (50 Hz) | 550 kVA Diesel Generator Set

Diesel Generator Sets C15 | DE550E3

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Key Specs

Minimum Rating: 500 kVA; 500 kVA

Maximum Rating: 550 kVA; 550 kVA

Emissions/Fuel Strategy: EUIIIa Certified; EUIIIa Certified

C15 | DE550E3
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Overview

550 kVA Diesel Generator Set

Producing reliable power 550 kVA at 50 Hz, our DE550E3 diesel generator set designed to ISO 8528-5 transient response requirements.

Benefits

Suitable for Harsh & testing environments

Optimised Fuel Consumption

Reliability tested for over 500 Hours

Features At A Glance

Cat generator set packages have been fully prototype tested
Accepts 100% block load in one step and meets NFPA 110 loading requirements
Conform to ISO 8528-5 steady state and transient response requirements

Reliable, rugged, durable design
Field-proven in thousands of applications worldwide
Four-stroke-cycle diesel engine combines consistent performance and excellent fuel economy with minimum weight

Superior motor starting capability minimizes need for oversizing alternator
Designed to match performance and output characteristics of Cat diesel engines
Robust Class H insulation

User-friendly interface and navigation
Scalable system to meet a wide range of installation requirement
Expansion modules and site-specific programming for specific customer requirements

Designed to operate in standard ambient temperatures up to 50°C (122°F)
Contact your Cat Dealer for specific ambient and altitude capabilities

EU Declaration of Conformity
EU Declaration of Incorporation
Eurasian Conformity (EAC)

Components used in the generator set are selected based on seamless design integration to provide the optimum performance
The generator set is fully assembled at a Caterpillar facility following our quality guidelines
Each generator set package is tested before leaving the Caterpillar facility
Cat product support, including dealer service, parts and warranty covers the entire Cat power system

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

Specifications Standard Equipment Optional Equipment

Product Specifications for C15 | DE550E3

Generator Set Specifications

Minimum Rating	500 kVA 500 kVA
Maximum Rating	550 kVA 550 kVA
Emissions/Fuel Strategy	EUIIIa Certified EUIIIa Certified
Voltage	200 to 400 Volts 200 to 400 Volts
Frequency	50 Hz 50 Hz
Duty Cycle	Standby, Prime Standby, Prime

Engine Specifications

Aspiration

Turbocharged, Air to Air Aftercooled Turbocharged, Air to Air Aftercooled

C15 | DE550E3 Standard Equipment

Air System

Turbocharger

Control Panel

GCCP 1.3

Cooling System

Radiator and cooling fan with guard

C15 | DE550E3 Optional Equipment

Generator and Attachments

LC frame CIP generator

Lube System

Manual sump pump

Mounting System

Narrow skid base - replaces standard fuel tank base

Product Specifications for C15 | DE550E3

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Generator Set Specifications

Minimum Rating	500 kVA 500 kVA
Maximum Rating	550 kVA 550 kVA
Emissions/Fuel Strategy	EUIIIa Certified EUIIIa Certified
Voltage	200 to 400 Volts 200 to 400 Volts
Frequency	50 Hz 50 Hz
Duty Cycle	Standby, Prime Standby, Prime

Engine Specifications

Aspiration

Turbocharged, Air to Air Aftercooled Turbocharged, Air to Air Aftercooled

C15 | DE550E3 Standard Equipment

Air System

Turbocharger

Control Panel

GCCP 1.3

Cooling System

Radiator and cooling fan with guard

C15 | DE550E3 Optional Equipment

Generator and Attachments

LC frame CIP generator

Lube System

Manual sump pump

Mounting System

Narrow skid base - replaces standard fuel tank base

Product Brochures and More Are Ready to Download!

Caterpillar product brochures and other informational documents are available for your growing business.

See how C15 | DE550E3 compares against frequently compared products.

Electric Power

Selected

C15 | DE550E3

Minimum Rating: 500 kVA; 500 kVA
Maximum Rating: 550 kVA; 550 kVA
Emissions/Fuel Strategy: EUIIIa Certified; EUIIIa Certified

Electric Power

C15 | DE550E0

Minimum Rating: 500 kVA; 500 kVA
Maximum Rating: 550 kVA; 550 kVA
Emissions/Fuel Strategy: Non Regulated; Non Regulated

View Details

Electric Power

DE605 GC (50 Hz)

Maximum Rating: 605 kVA; 605 kVA
Minimum Rating: 605 kVA; 605 kVA
Emissions/Fuel Strategy: Non Regulated; Non Regulated

View Details

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Special Cat® Commercial Account Financing on Parts and Services

Unlock special offers just for Cat® Commercial Accountholders and earn rewards on every qualifying purchase. Terms and conditions apply.

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Get 2.95% Financing on Cat® Small Excavators

Don't miss this offer! Enjoy 2.95% finance for 36 months* on a select range of Cat® Excavators.

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Rebuild Your Cat Machine with Low Financing

A Cat Certified Rebuild gives your machine a second life and is a cost-effective alternative to purchasing new equipment. Offer expires 31 December 2025.

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Diesel Generator Sets C15 | DE550E3

Overview

550 kVA Diesel Generator Set

Benefits

Suitable for Harsh & testing environments

Optimised Fuel Consumption

Reliability tested for over 500 Hours

Features At A Glance

Product Specifications for C15 | DE550E3

Generator Set Specifications

Engine Specifications

C15 | DE550E3 Standard Equipment

Air System

Control Panel

Cooling System

C15 | DE550E3 Optional Equipment

Generator and Attachments

Lube System

Mounting System

Product Specifications for C15 | DE550E3

Generator Set Specifications

Engine Specifications

C15 | DE550E3 Standard Equipment

Air System

Control Panel

Cooling System

C15 | DE550E3 Optional Equipment

Generator and Attachments

Lube System

Mounting System

assignment Product Brochures and More Are Ready to Download!

See how C15 | DE550E3 compares against frequently compared products.

Tools And Expert Help At Every Turn

Size Your Generator

Configure Your Generator Set

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Media Gallery

Photos

Check out current offers for the C15 | DE550E3

Special Cat® Commercial Account Financing on Parts and Services

Unlock special offers just for Cat® Commercial Accountholders and earn rewards on every qualifying purchase. Terms and conditions apply.

Get 2.95% Financing on Cat® Small Excavators

Don't miss this offer! Enjoy 2.95% finance for 36 months* on a select range of Cat® Excavators.

Rebuild Your Cat Machine with Low Financing

A Cat Certified Rebuild gives your machine a second life and is a cost-effective alternative to purchasing new equipment. Offer expires 31 December 2025.

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