Kohler 48KW 120/240V Single Phase Standby Generator with Block Heater New - 48RCLC-QS51
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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Commercial‑grade 60 kW 3‑phase standby solution
Built for 120/208 V three‑phase systems, ideal for large homes, commercial buildings, workshops, and mission‑critical loads where reliable backup power is essential.
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Smart App Connect monitoring
KOHLER Energy Management App provides real‑time alerts and system status so you can remotely monitor performance and health from your phone or tablet.
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Industrial‑strength liquid‑cooled engine
Powered by a 6.2 L liquid‑cooled engine (1800 RPM) delivering durable, efficient operation and smoother load handling under extended standby conditions.
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Clean, stable power quality
Tight voltage and frequency regulation with ultra‑low harmonic distortion protects sensitive electronics, servers, and precision equipment.
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Fast automatic backup (≈10 sec)
Automatically senses utility failure and restores power quickly—reducing interruptions to critical processes or systems.
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Advanced controller & diagnostics
RDC2 controller with easy‑to‑read LCD display, built‑in battery charger, and monitoring capabilities simplifies local diagnostics and maintenance.
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Quiet, rugged enclosure
Sound‑attenuated aluminum housing keeps noise low (~61 dB) and withstands corrosion and weather for long‑term outdoor deployment.
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Flexible fuel options (NG / LP)
Runs on natural gas or liquid propane for installation flexibility and dependable operation during extended outages.
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Easy, close‑to‑structure installation
Designed to meet NFPA 37 reduced setback requirements, permitting installation as close as 18 inches from structures where allowed.
Q&A
Q: What power output does this generator provide?
A: Delivers 60 kW of standby power at 120/208 V three‑phase, suited for large residential 3‑phase systems, small commercial spaces, and critical backup needs.
Q: What applications is it best for?
A: Designed for commercial facilities and large homes with 3‑phase electrical service that require robust automatic backup power during outages.
Q: What fuel options are supported?
A: Operates on natural gas or liquid propane (LP) for flexible installation and fuel choice.
Q: Does it offer remote monitoring?
A: Yes — it works with the Kohler Energy Management App for real‑time alerts, status monitoring, and diagnostics from your smartphone or device.
Q: How quickly does it restore power?
A: With an automatic transfer switch (sold separately), it restores backup power typically within 7–10 seconds of a utility outage.
Q: What engine and performance features does it include?
A: Features a 6.2 L liquid‑cooled engine running at 1800 RPM, excellent voltage/frequency regulation, ultra‑low harmonic distortion, and a RDC2 controller for stable and clean power.
Q: Is it suitable for sensitive electronics?
A: Yes — exceptional voltage control and low THD make it safe for computers, HVAC systems, security equipment, and other sensitive loads.
Q: How quiet and durable is it?
A: Built with a sound‑attenuating aluminum enclosure and acoustic insulation for quieter operation (~≤61 dB at 7 m) and long‑lasting corrosion resistance.
Maintenance Tips
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Oil & Filter Changes: Replace engine oil and filters every 100–200 hours or annually to prevent engine wear and maintain efficiency.
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App Connect Monitoring: Track performance, receive alerts, and detect issues remotely for proactive maintenance.
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Coolant System Maintenance: Check levels regularly and flush periodically to prevent overheating of the liquid-cooled engine.
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Air Filter & Spark Plugs: Clean or replace to maintain efficient combustion, reliable starts, and optimal fuel economy.
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Weekly Exercise Cycle: Automatic test runs keep internal components lubricated and generator ready for outages.
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Load Testing: Run under actual or simulated load to ensure stable voltage and frequency for sensitive equipment.
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Fuel System Inspection (NG/LP): Maintain clean lines and consistent fuel pressure for uninterrupted operation.
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Battery & Electrical Connections: Verify battery charge and terminal condition for reliable automatic startup.
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Enclosure Care: Keep the aluminum enclosure clean and ventilated to prevent overheating and corrosion.
