Gas Generator Sets G3520 with FAST RESPONSE

Request A Price Find Dealer

Search Available Stock

Configure Your Generator

Key Specs

Gas Standby Rating: 3120 ekW @ 1.0pf; 3120 ekW @ 1.0pf

Fuel Type: Natural Gas, Hydrogen Blend (up to 5%); Natural Gas, Hydrogen Blend (up to 5%)

Emissions/Fuel Strategy: U.S. EPA Stationary Non-Emergency Certified; U.S. EPA Stationary Non-Emergency Certified

G3520 with FAST RESPONSE
Change model

Overview

3120 kW Natural Gas Generator

Caterpillar is leading the power generation marketplace with Fast Response generator sets engineered to deliver unmatched performance, reliability, and cost-effectiveness.

Benefits

Massive Power Density

Delivering 3.1 MW of power in a compact footprint, this solution offers exceptional power density for its size.

Ready in 8.1 Seconds

Complies with industry leading specifications such as NFPA 110 Level 1 Type 10

Ready to accept 85% Block Load

Able to pick up the loads for the entire site in the event of an emergency.

Features At A Glance

Cat G3520 Gas Engine

Robust high speed block design provides prolonged life and lower owning operationg costs
Designed for maximum performance on low pressure pipeline natural gas and hydrogen blends
Simple open chamber combustion system for reliability and fuel flexibility
Leading edge technology in ignition system and air/fuel ratio control for lower emission and engine efficiency
One electronic control module handles all engine functions: ignition, governing, air/fuel ratio control and engine protection

Full Range of Attachments

Wide range of bolt-on system expansion attachments
Factory designed and tested
Flexible packaging options for easy and cost effective installation

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

SR5 & N9500 Generator

Designed to match performance and output characteristics of Caterpillar gas engines
Industry leading mechanical and electrical design
High efficiency

Cat ECS 100 Control Panel

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
Cat ECS 200 Control Panel available
Capable with Cat ECS 300 & 400

Proven System

Field proven in a wide range of applications worldwide
Fully prototype tested
Certified torsional vibration analysis available

Emissions

EPA Certified for use in Emergency and Non-Emergency applications
Additionally, NOx selectable genset is available to meets most worldwide emissions requirements down to 0.5 g/bhp-hr NOx or 250 mg/Nm3 level without aftertreatment

Specifications Standard Equipment Optional Equipment

Product Specifications for G3520 with FAST RESPONSE

Generator Set Specifications

Gas Standby Rating	3120 ekW @ 1.0pf 3120 ekW @ 1.0pf
Fuel Type	Natural Gas, Hydrogen Blend (up to 5%) Natural Gas, Hydrogen Blend (up to 5%)
Emissions/Fuel Strategy	U.S. EPA Stationary Non-Emergency Certified U.S. EPA Stationary Non-Emergency Certified
RPM	1800 rpm 1800 rpm
Frequency	50 / 60 Hz 50 / 60 Hz
Maximum Electrical Efficiency	39.6% 39.6%
Compression Ratio	10.2 10.2
Frequency	50/60 Hz 50/60 Hz
Speed	1800 RPM 1800 RPM

Engine Specifications

Engine Model	G3520 G3520
Displacement	5956 in³ 97.6 l
Aspiration	TA TA
Bore	6.7 in 170 mm
Stroke	8.5 in 215 mm
Compression Ratio	10.2:1 10.2:1

Generator Set Dimensions

Length	260 in 6597 mm
Width	86 in 2188 mm
Height	99 in 2509 mm
Weight	48444 lb 21974 kg

G3520 with FAST RESPONSE Standard Equipment

Air Inlet

Single element air cleaner with package and service indicator

Control Panel

Cat ECS 100

Cooling

Jacket water and SCAC engine-driven pumps

Jacket water and SCAC thermostats

Exhaust

Dry exhaust manifolds, insulated and shielded

Cat-flanged face outlet on turbocharger

Fuel System

24V DC energized-to-run (ETR) gas shutoff valve

Gas pressure regulator

Engine-installed electronic control valve

Fuel system is sized for 31.5 to 47.2 MJ/NM3 dry pipeline natural gas with pressure of 10.2 to 34.5KPa to the engine fuel control valve

General

Paint- Caterpillar Yellow with high gloss black rails and radiator

Parts book

Operation and maintenance manuals

Crankshaft vibration damper and guard

RH Service

Generator

SR5 / N9500

Winding temperature detectors

Permanent Magnet Excitiation

Integrated voltage regulator (IVR)

Anti-condensation space heater

NEMA Class H insulation

Cat Gearbox (50 Hz)

Starting/Charging

Electric Starter

Jacket water heater

24V starting motors

Battery with cables and rack (shipped loose)

Governing System

ADEM 6

Ignition System

Integrated Cylinder Pressure Sensor (ICPS)

Electronic Ignition System (controlled by ADEM)

G3520 with FAST RESPONSE Optional Equipment

Air Inlet

Air cleaner with precleaner

Control Panel

Engine failure relay

Remote PC monitoring

DIO Modules

Load Share Module

Cat ECS 200

CAN Wiring

Circuit Breakers

100% rated, 3-pole (UL/CSA/IEC) 5th Digit Rating

2000A, 2500A, 3000A 3 Pole, UL-100% Rated Masterpact Circuit Breakers

3-pole (IEC 947-2 rated)

1600A, 2000A 3 Pole, UL-100% Rated R-Frame Circuit Breakers

Frame mounting

S LSI, G LSIG, P LSIG-P, 4th Digit Type

Cooling

Factory provided remote radiator

Exhaust

305 mm (12 in.) flange

305 mm (12in.) elbow

305mm (12 in) spark arresting muffler

305 mm (12 in.) muffler

18, 25 dBA Attenuation

Fuel System

3, 0-100 kPag, 4-20mA gas train pressure sensors

General

Digital diagnostic tool

Generator

European bus bars

Low voltage extension box

Generator air filter

Cable access box

Bearing temperature detectors

Starting/Charging

20/35/50A, 24VDC battery charger

50A, 24V charging alternator (requires engine driven pumps)

Product Specifications for G3520 with FAST RESPONSE

Download Print

Generator Set Specifications

Gas Standby Rating	3120 ekW @ 1.0pf 3120 ekW @ 1.0pf
Fuel Type	Natural Gas, Hydrogen Blend (up to 5%) Natural Gas, Hydrogen Blend (up to 5%)
Emissions/Fuel Strategy	U.S. EPA Stationary Non-Emergency Certified U.S. EPA Stationary Non-Emergency Certified
RPM	1800 rpm 1800 rpm
Frequency	50 / 60 Hz 50 / 60 Hz
Maximum Electrical Efficiency	39.6% 39.6%
Compression Ratio	10.2 10.2
Frequency	50/60 Hz 50/60 Hz
Speed	1800 RPM 1800 RPM

Engine Specifications

Engine Model	G3520 G3520
Displacement	5956 in³ 97.6 l
Aspiration	TA TA
Bore	6.7 in 170 mm
Stroke	8.5 in 215 mm
Compression Ratio	10.2:1 10.2:1

Generator Set Dimensions

Length	260 in 6597 mm
Width	86 in 2188 mm
Height	99 in 2509 mm
Weight	48444 lb 21974 kg

G3520 with FAST RESPONSE Standard Equipment

Air Inlet

Single element air cleaner with package and service indicator

Control Panel

Cat ECS 100

Cooling

Jacket water and SCAC engine-driven pumps

Jacket water and SCAC thermostats

Exhaust

Dry exhaust manifolds, insulated and shielded

Cat-flanged face outlet on turbocharger

Fuel System

24V DC energized-to-run (ETR) gas shutoff valve

Gas pressure regulator

Engine-installed electronic control valve

Fuel system is sized for 31.5 to 47.2 MJ/NM3 dry pipeline natural gas with pressure of 10.2 to 34.5KPa to the engine fuel control valve

General

Paint- Caterpillar Yellow with high gloss black rails and radiator

Parts book

Operation and maintenance manuals

Crankshaft vibration damper and guard

RH Service

Generator

SR5 / N9500

Winding temperature detectors

Permanent Magnet Excitiation

Integrated voltage regulator (IVR)

Anti-condensation space heater

NEMA Class H insulation

Cat Gearbox (50 Hz)

Starting/Charging

Electric Starter

Jacket water heater

24V starting motors

Battery with cables and rack (shipped loose)

Governing System

ADEM 6

Ignition System

Integrated Cylinder Pressure Sensor (ICPS)

Electronic Ignition System (controlled by ADEM)

G3520 with FAST RESPONSE Optional Equipment

Air Inlet

Air cleaner with precleaner

Control Panel

Engine failure relay

Remote PC monitoring

DIO Modules

Load Share Module

Cat ECS 200

CAN Wiring

Circuit Breakers

100% rated, 3-pole (UL/CSA/IEC) 5th Digit Rating

2000A, 2500A, 3000A 3 Pole, UL-100% Rated Masterpact Circuit Breakers

3-pole (IEC 947-2 rated)

1600A, 2000A 3 Pole, UL-100% Rated R-Frame Circuit Breakers

Frame mounting

S LSI, G LSIG, P LSIG-P, 4th Digit Type

Cooling

Factory provided remote radiator

Exhaust

305 mm (12 in.) flange

305 mm (12in.) elbow

305mm (12 in) spark arresting muffler

305 mm (12 in.) muffler

18, 25 dBA Attenuation

Fuel System

3, 0-100 kPag, 4-20mA gas train pressure sensors

General

Digital diagnostic tool

Generator

European bus bars

Low voltage extension box

Generator air filter

Cable access box

Bearing temperature detectors

Starting/Charging

20/35/50A, 24VDC battery charger

50A, 24V charging alternator (requires engine driven pumps)

Product Brochures and More Are Ready to Download!

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

See how G3520 with FAST RESPONSE compares against frequently compared products.

Electric Power

Selected

G3520 with FAST RESPONSE

Gas Standby Rating: 3120 ekW @ 1.0pf; 3120 ekW @ 1.0pf
Fuel Type: Natural Gas, Hydrogen Blend (up to 5%); Natural Gas, Hydrogen Blend (up to 5%)
Emissions/Fuel Strategy: U.S. EPA Stationary Non-Emergency Certified; U.S. EPA Stationary Non-Emergency Certified

Electric Power

G3520K

Continuous Rating: 2567 / 2552 ekW @ 1.0pf; 2567 / 2552 ekW @ 1.0pf
Fuel Type: Natural Gas & Propane; Natural Gas & Propane
Maximum Electrical Efficiency: 46.0%; 46.0%

View Details

Electric Power

G3520H

Continuous Rating: 2519 / 2500 ekW @ 1.0pf; 2519 / 2500 ekW @ 1.0pf
Fuel Type: Natural Gas, Hydrogen Blend (up to 25%); Natural Gas, Hydrogen Blend (up to 25%)
Maximum Electrical Efficiency: 45.30%; 45.30%