Kohler 120/240V Single Phase 48KW Standby Power Generator New - 48RCLC-QS5
Reliable power for large residential or small business needs. When the power goes out during a bad storm or power failure, your 48 kW KOHLER generator with industrial-grade engine keeps your home or business – from central air to sump pump to personal computers – up and running.
What our Experts Think
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High‑capacity standby power you can trust
The Kohler 48 kW 120/240 V Single‑Phase Standby Generator (48RCLC‑QS5) delivers robust backup for large homes, estates, or light commercial facilities, keeping HVAC, refrigeration, lighting, and critical systems running through outages.
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Industrial‑grade liquid‑cooled performance
Powered by a 6.2 L liquid‑cooled Kohler engine running at 1800 RPM, it’s built for quiet, efficient, and long‑lasting operation with excellent fuel economy on both natural gas and propane.
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Stability & clean power for sensitive loads
Exceptional voltage and frequency regulation with ultra‑low total harmonic distortion (THD) ensures safe power delivery to computers, security systems, and electronics.
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Fast automatic response
Equipped with a Fast‑Response excitation system, the generator can regain full output—typically within about 10 seconds of utility failure—minimizing downtime and inconvenience.
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Smart control & remote monitoring ready
Features Kohler’s RDC2 controller for system diagnostics, LCD status readout, and compatibility with the OnCue Plus management app for monitoring from smartphone or tablet.
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Durable, quiet, weatherable design
The corrosion‑resistant aluminum enclosure with internal silencer keeps noise around 61 dB at 7 m and allows closer installation to buildings with minimal setback requirements.
Q&A
Q: What is this generator designed for?
A: The Kohler 48RCLC‑QS5 48KW 120/240V Single Phase Standby Generator is a high‑capacity standby power system built to automatically supply backup electricity for large homes and light commercial properties during outages.
Q: What power output and voltage does it provide?
A: It delivers 48 kW of reliable power at 120/240 V single‑phase, supporting heavy electrical loads including HVAC systems, appliances, lighting, and sensitive electronics.
Q: What fuel options does it support?
A: Runs on natural gas (NG) or liquid propane (LP) with simple field conversion while maintaining emissions compliance.
Q: How quickly does it restore power?
A: Automatically restores generator power to your home or business in about 10 seconds after a utility outage.
Q: What engine and performance features does it have?
A: Powered by a Kohler liquid‑cooled 6.2 L V8 industrial‑grade engine, it delivers stable voltage and frequency regulation with low total harmonic distortion (THD), safe for sensitive electronics.
Q: Can it be monitored remotely?
A: Yes — compatible with Kohler’s Energy Management App (OnCue Plus) for monitoring status, alerts, and diagnostics from smart devices (Wi‑Fi remote monitoring sold separately).
Q: How quiet and durable is the unit?
A: Operates quietly (approx. 61 dB(A) at full load) and comes in a sound‑attenuated aluminum enclosure that’s corrosion‑resistant and suitable for outdoor installation near structures.
Maintenance Tips
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Follow scheduled oil & filter changes at recommended runtime hours to ensure long engine life and reduce wear.
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Check coolant level & condition regularly in the liquid‑cooled system to prevent overheating and corrosion.
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Inspect air intake & exhaust areas—remove debris to maintain proper combustion and airflow.
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Monitor battery voltage & connections to guarantee reliable auto starts when utility power fails.
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Exercise the generator weekly or bi‑weekly under load to burn off moisture, keep parts lubricated, and ensure readiness.
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Use the OnCue® Plus/Kohler Energy Management App for alerts, diagnostics, and maintenance reminders.
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Check fuel system for leaks and correct pressure per installation recommendations; fuel safety prevents hazards.
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Clean enclosure & vents to maintain cooling efficiency and reduce corrosion risk.
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Confirm electrical connections & ATS wiring integrity periodically to avoid startup/shutdown faults.
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