USED CATERPILLAR SR4B

Overview

This Caterpillar SR-4B Diesel Generator is a heavy-duty industrial power generation system designed for mission-critical applications requiring reliable standby or prime power. Manufactured by Caterpillar Inc., this sound-attenuated generator set features robust construction and professional-grade components for demanding commercial and industrial environments. With model designation SR-4B, serial number 93FN00666, and arrangement number 9Y-0160, this unit includes integrated SBS2020 electrical switchgear rated for 2000 amps maximum with multi-voltage capability. Based on the switchgear capacity, this generator provides an estimated 1,330-1,663 kW output depending on voltage configuration, making it suitable for large-scale industrial and commercial power applications.

Design and Performance

Model: SR-4B
Serial Number: 93FN00666
Arrangement Number: 9Y-0160
Type: Diesel Generator Set
Manufacturer: Caterpillar Inc.
Calculated Power Output: 1,330-1,663 kW (based on switchgear capacity)
Electrical Configuration: Three-phase power generation
Year of Manufacture: 1996

Power Output Calculations

Based on the 2000-amp maximum switchgear capacity at various voltages:

At 480V, 3-phase: 2000A × 480V × √3 × 0.8 PF = approximately 1,330 kW

At 600V, 3-phase: 2000A × 600V × √3 × 0.8 PF = approximately 1,663 kW

Note: Calculations assume 0.8 power factor (typical for industrial generators). These are calculated maximum capacities based on the electrical distribution system. Actual generator nameplate rating should be verified from factory documentation for precise specifications.

Electrical Specifications

Integrated SBS2020 Switchgear:

Maximum current rating: 2000 amps
Voltage configurations: 240V, 480V, and 600V AC
Three-pole circuit breaker system
50/60 Hz frequency operation
UL Listed and CSA certified (Issue No. XR-1981, E9696)

RMS Symmetrical Current Interrupting Ratings:

100,000 amps at 240V, 50/60 Hz
100,000 amps at 480V, 50/60 Hz
65,000 amps at 600V, 50/60 Hz

Compatible Trip Units: SB20TLI, SB20TLS, SB20TP01G Rating Plugs Available: 1000A and 1200A options

Construction Features

Sound-attenuated weather-resistant enclosure
Caterpillar yellow industrial finish
Acoustic insulation for reduced noise emissions
Large-capacity radiator with heavy-duty cooling fan
Industrial exhaust system with flexible connections
Multiple access panels for service and maintenance
Robust steel frame mounting structure
Weather-sealed electrical compartments
Professional cable management systems
Integrated fuel tank with dual-stage fuel filtration

Engine and Cooling System

Heavy-duty Caterpillar diesel engine
High-capacity radiator cooling system
Large diameter cooling fan assembly
Integrated cooling system plumbing
Engine exhaust routing and muffler system
Advanced lubrication systems with specified maintenance intervals
Fuel system with dual filtration stages

Control and Safety Features

Advanced Caterpillar generator control panel with digital display
Comprehensive monitoring system with fault diagnostics
Automatic voltage regulation
Engine management controls with Hz and voltage adjustment
Emergency stop button (large red button)
Multiple alarm indicators:
Low Oil Pressure
High Coolant Temperature
Engine Overspeed
Overcrank
Fault Shutdown
Fault Alarm
Spare indicator positions for custom monitoring
Circuit breaker protection with adjustable trip settings
Overcurrent and fault protection

Maintenance Specifications

Lubrication System:

Grease Part No.: 2S-3230 (Caterpillar specification)
Service Interval: 2000 hours or 12 months (whichever comes first)
Exciter End and Drive End bearing maintenance specified
Drain tube purging procedure included

 
Key Specifications

Condition: Used - Industrial Grade
Brand: Caterpillar (CAT)
Model: SR-4B Generator
Serial Number: 93FN00666
Arrangement: 9Y-0160
Equipment Type: Diesel Generator Set
Estimated Power Output: 1,330-1,663 kW (calculated from switchgear capacity)
Switchgear: SBS2020 Type, 2000A Maximum
Voltage Options: 240V / 480V / 600V AC
Frequency: 50/60 Hz
Phases: Three-phase
Installation Type: Sound-attenuated weather enclosure
Country of Origin: Made in USA

Physical Specifications

Industrial Caterpillar yellow finish
Weather-resistant sound enclosure
Heavy-duty steel construction
Skid-mounted transportable design
Acoustic insulation package
Professional-grade components
Multiple service access points
Large integrated fuel tank with "No Smoking" safety labeling

Ideal Applications

Hospital and Healthcare Emergency Power
Data Center Backup Power Systems
Manufacturing Facility Prime Power
University and Campus Emergency Power
Commercial Building Standby Systems
Industrial Process Critical Power
Telecommunications Infrastructure
Government and Military Facilities
Water Treatment Plants
Food Processing Facilities
Distribution Centers and Warehouses
Large-Scale Construction Projects
Mining Operations Power Supply
Oil and Gas Field Operations
Large Commercial Buildings
Critical Infrastructure Applications

Benefits

High-capacity power generation (1,330-1,663 kW range) for large facilities
Made in USA Caterpillar quality and engineering
Sound-attenuated design for noise-sensitive applications
Weather-resistant enclosure for outdoor installation
Integrated 2000-amp switchgear for complete power distribution
Multi-voltage capability (240V/480V/600V) for flexible installation
UL and CSA certified electrical components
Heavy-duty construction for continuous operation
Advanced monitoring and control systems with diagnostic capabilities
Comprehensive safety and protection features
Professional maintenance accessibility with multiple access panels
Proven Caterpillar reliability and durability
Substantial cost savings versus new equipment
Ready for critical power applications
Original operation and maintenance documentation included
Suitable for prime or standby power applications

Additional Information

Condition: Used - Ready for Service
Manufacturer: Caterpillar Inc. (CAT)
Generator Model: SR-4B
Serial Number: 93FN00666
Arrangement Number: 9Y-0160
Country of Origin: Made in USA
Estimated Power Range: 1,330-1,663 kW (based on 2000A switchgear capacity)
Switchgear Type: SBS2020, 2000 Amps Max
Circuit Breaker: Three-pole, high interrupting capacity
Installation: Sound-attenuated weather enclosure
Color: Caterpillar Yellow
Cooling System: Radiator with large cooling fan
Lubrication: Caterpillar grease specification 2S-3230
Service Interval: 2000 hours/12 months
Documentation: Original nameplates intact, operation manuals included
Certifications: UL Listed, CSA Certified