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Caterpillar
Caterpillar SR4B Synchronous Generator
Model: SR4B
4-hour response · Pricing in SAR · Delivery across all KSA regions
SR4B — Caterpillar SR4B Synchronous Generator
The Caterpillar SR4B Synchronous Generator is the alternator of choice for Saudi Arabia's Cat diesel generator sets, custom OEM power systems, and industrial drive applications. Designed specifically by Caterpillar for optimal integration with Cat engines, the SR4B achieves superior power quality with total harmonic distortion (THD) below 5% meeting IEEE 519 power quality standards for sensitive Saudi industrial loads. Its class H insulation withstands the temperature extremes of Saudi Arabia's hot ambient conditions without voltage regulation degradation. The SR4B's brushless excitation system with permanent magnet generator (PMG) provides reliable excitation even during sustained short circuit conditions, protecting Saudi Aramco and SABIC plant switchgear from voltage collapse. Available in single and three-phase configurations from 10 kVA to 3000 kVA for the full range of Saudi power requirements.
Technical Specifications
Full specifications for the SR4B
- Range
- 10-3000 kVA
- Phases
- 1-phase and 3-phase
- Insulation
- Class H
- THD
- <5% at full linear load
- Excitation
- Brushless PMG
- Voltage Regulation
- ±0.5% (AVR)
- Pitch
- 2/3 pitch winding
- Efficiency
- >95%
- Ambient
- -20°C to +70°C
- Certification
- ISO 8528-3, IEC 60034
Key Features & Benefits
- PMG permanent magnet generator excitation maintains stable output voltage during motor starting transients in Saudi Arabia's large motor loads at Aramco pump stations.
- Class H 180°C insulation rating handles ambient temperatures above 50°C without derating, essential for SR4B alternators in outdoor Saudi Arabia desert generator installations.
- <5% THD meets IEEE 519 power quality requirements for Saudi hospital, data center, and industrial variable speed drive loads sensitive to harmonic distortion.
- 2/3 pitch winding eliminates third harmonics from the output voltage waveform, preventing neutral conductor overloading in Saudi 4-wire distribution systems.
- IEC 60034 and ISO 8528-3 dual certification satisfies Saudi Aramco and international project electrical specifications for generator set alternator performance.
Industrial Applications in Saudi Arabia
- Saudi Aramco diesel genset alternator replacement and upgrade for extended service life alternators requiring factory-spec Cat SR4B replacement.
- Custom OEM power systems for Saudi Vision 2030 manufacturing automation, packaging machinery, and process equipment requiring integrated alternator-engine solutions.
- Saudi renewable energy hybrid systems using Cat diesel as backup alongside solar PV, requiring power quality alternator for clean power integration.
- Saudi industrial variable speed drive applications requiring low-THD power source for sensitive drive electronics in MAADEN and SABIC motor drive systems.
- Saudi hospital and data center critical power systems requiring PMG excitation for reliable voltage response during fault conditions and heavy load starts.
Industrial Supplier in Saudi Arabia
Get a Quote for the Caterpillar SR4B Synchronous Generator
We respond within 4 business hours. Send model SR4B for competitive pricing in SAR with delivery across Saudi Arabia and the GCC.
Frequently Asked Questions — SR4B
Common questions from buyers in Saudi Arabia and the GCC