Kohler 48RCLC 48kW 1-phase Generator Features:
Kohler 48RCLC 48kW 1-Phase Generator
The Kohler 48RCLC is a rugged and high-performing 48kW single-phase standby generator, purpose-built for large residential estates and light commercial applications that demand clean, reliable backup power. With a 6.2L V8 engine, brushless alternator, and smart digital controller, this generator delivers exceptional voltage regulation, quiet operation, and field-proven reliability.
At the core of the 48RCLC is the Kohler KG6208 6.2L liquid-cooled engine, operating at 1800 RPM for long-lasting performance and enhanced fuel efficiency. Its electronic engine management system provides smooth power delivery on both natural gas and liquid propane, and the unit supports field conversion between fuels without compromising emissions certifications.
The generator's Fast-Response® X excitation system, powered by a rare-earth permanent magnet alternator, provides outstanding voltage response and ±1% digital voltage regulation, while maintaining less than 4% total harmonic distortion (THD). This ensures a stable power output, safe for computers, automation systems, and other sensitive electronics.
All system controls are managed by the RDC2 digital controller, which offers a backlit two-line LCD, programmable exercise modes, and remote diagnostics via OnCue® Plus compatibility. It also features over 70 diagnostic messages, onboard maintenance reminders, and real-time tracking of voltage, frequency, runtime hours, engine temperature, and more.
Kohler also prioritized sound control—this model operates at 62 dB(A) during exercise and 63 dB(A) during full load operation. The aluminum sound-attenuated enclosure, with an internal critical silencer and corrosion-resistant powder-baked finish, is wind-rated up to 181 mph, meeting NFPA 37 installation clearance standards with just 18 inches from a building.
Fuel efficiency is strong for this size class, with full-load fuel use rated at 875 cfh of natural gas or 329 cfh of propane. Additional highlights include a sealed brushless alternator, integral vibration isolation, and circuit breaker protection. The generator is UL 2200 listed, CSA certified, EPA-compliant, and approved for use in California and Massachusetts.
Key Features:
-
48kW Single-Phase Power Output – Serves large homes and small businesses with full-building backup
-
6.2L Kohler V8 Engine – Turbocharged and naturally aspirated, built for long-term generator use
-
Fast-Response® Excitation System – Delivers sharp voltage recovery and short-circuit capacity
-
±1% Voltage Regulation / <4% THD – Protects sensitive devices and complex electronics
-
RDC2 Digital Controller – Two-line LCD, system alerts, programmable scheduling, and OnCue® Plus compatibility
-
Quiet Operation – Only 62 dB(A) during exercise and 63 dB(A) at full load
-
Aluminum Enclosure with Critical Silencer – Corrosion-resistant and wind-rated to 181 mph
-
Fuel Efficient – Uses 875 cfh (NG) or 329 cfh (LP) at full load
-
Field-Convertible Fuel Setup – Easily switch between NG and LP
-
Certified for Safety & Emissions – UL, CSA, EPA, NFPA 37, and Massachusetts Board-approved
The Kohler 48RCLC is a robust, low-maintenance generator built to deliver dependable power and peace of mind, even in the harshest conditions. Perfect for those who require serious performance with smart monitoring and minimal noise.
