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C7.1 ACERT

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Overview

Caterpillar is leading the power generation marketplace with Power Solutions engineered to deliver unmatched flexibility, expandability, reliability, and cost-effectiveness.

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Cat Generator Set Package

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

Cat Diesel Engine

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

R-Frame Alternator

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

GCCP 1.3 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
Image may not be a representative of actual product

Cooling System

Designed to operate in standard ambient temperatures up to 55°C (131°F)
Contact your Cat Dealer for specific ambient and altitude capabilities

Certifications

Fully prototype tested with certified torsional vibration analysis available

One Safe Source

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

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

Engine Specifications

Bore: 4.13in
Displacement: 427.8in³
Stroke: 5.31in
Aspiration: Turbocharged, Air to Air Aftercooled
Fuel System: Common Rail
Engine Model: C7.1 I-6, 4-Cycle Diesel
Compression Ratio: 16.5:1
Governor Type: ADEM™A4
Aspiration: Turbocharged, Air to Air Aftercooled
Fuel System: Common Rail
Bore: 4.13in
Displacement: 427.8in³
Stroke: 5.31in
Fuel System: 5.31in

Generator Set Specifications

Minimum Rating: 120 ekW
Maximum Rating: 175 ekW
Voltage: 208 to 480 Volts
Frequency: 60 Hz
Speed: 1800 rpm
Emissions/Fuel Strategy: Non Regulated
Duty Cycle: Standby, Prime

Generator Set Dimensions

Height - Maximum: 64in
Length - Maximum: 98.4in
Width - Maximum: 52in

Standard/Optional Features

Standard Equipment:

Control Panels
- EMCP 4.1
Air Inlet System
- Air cleaner; light duty with disposable element
Cooling System
- Radiator and cooling fan with guards
- Coolant drain line with valves
- Caterpillar extended life coolant
- Fan drive, battery charging alternator drive
Exhaust System
- Stub pipe, gaskets, raincap and SAE exhaust flange for customer use - shipped loose
Fuel System
- Base, formed steel with single wall integral 8-hour fuel tank
- Standard open set fuel tank/base supplied
Lube System
- Lubricating oil
- Oil drain line with valve
Generator And Generator Attachments
- Segregated low voltage (AC/DC) wiring panel
- Tower panel, IP22, bottom cable entry
- 12 Leads
- Voltage regulator (single phase sensing)
- IP23 Protection
- Circuit breaker, IEC, 3 pole, mounted in tower panel
Mounting System
- Captive linear vibration isolators between base and engine-generator
- Termination points for coolant and lube oil drain lines
- Includes lifting provision and drag points
Packaged Generator Set
- Radiator and cooling fan complete with protective guards
- Flexible fuel lines to base NPT connections
- Drip proof generator air intake (NEMA 2, IP23)
- Class H insulation
- Standard ambient temperatures up to 50°C (122°F)
Starting / Charging System
- 24V battery with rack and cables
Governing System
- Mechanical and electrical governing system - model dependent
General
- Engine and alternator pre-paint, Caterpillar yellow

Optional Equipment:

Alternator System
- R Frame auxiliary winding: R2273L4 SE aux alt 07, aux alt 08 and aux alt 10
- Quatrature droop king
- Alternator removal
- Anti-condensation heater
- 3 Phase sensing
- Optional LC Frame alternator with coastal insulation protection
- Permanent magnet excitation (PMG)
Packaged Generator Set Options
- Radiator stone guard
Circuit Breakers
- Padlockable breaker device
- 4 Pole 250A, 400A and 630A Circuit breakers
Control System
- Control panel heater
- Static battery charger
- Volt free contacts for common alarm
- Volt free contacts for generator set running
- EMCP 4.2
Control Panel Options
- Speed adjust potentiometer
- Emergency stop with key
- Battery charger
- Volt free contacts
- Earth leakage (2 wire only)
- Control panel heater
- Earth fault (2 wire only)
- Panel mounted audible alarm
- Speed adjust contacts
- Overload shutdown via breaker
Cooling System
- Low coolant temperature
- Low coolant level shutdown
- Coolant heater
Enclosures
- Sound attenuated level 2 enclosure
- Rental options (CAE only) - Single point lift
- Sound attenuated levels 1 and 2 enclosures
- Rental options (CAE only) - CEE form sockets for enclosure
- Rental options (CAE only) - Rental pack
- Rental options (CAE only) - Socket blanking plate
European Certifications
- Upgrade to STD set for CE
Mounting Options
- Battery removal
- Residential silencer
- Industrial silencer removal
- Silencer installation kit
- Electronic governor
Test Reports
- PGS Test report @ 0.8 power factor
- PGS Test report @ 1.0 power factor
General
- Stone guards/radiator trans flange
Fuel Systems
- Open set narrow tankbase
- Compact skidbase for open sets
- DEFRA bunded fuel tank
- High fuel level alarm
- Skidbase for CALG enclosure sets
- Low fuel level shutdown
- Low fuel level alarm
Global Certifications
- Certification for CIS
Power Termination
- Circuit breaker, IEC, 4 pole
Accessories / Miscellaneous
- Packing case - canopied set
- Packing case - compact set

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See how C7.1 (60 Hz) compares against frequently compared products

C7.1 (60 Hz) Diesel Generator Sets

Engine Model: C7.1 I-6, 4-Cycle Diesel
Voltage: 208 to 480 Volts
Maximum Rating: 175 ekW

Selected Model

C1.1 (50 Hz) Diesel Generator Sets

Engine Model: C1.1, In-line 4 4-cycle diesel
Voltage: 110 to 415 Volts
Maximum Rating: 9.5 kVA

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C7.1 ACERT