Kohler 48KW 120/208V 3-Phase Standby Generator with App Connect New - 48RCLC-QS6
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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Powerful 48 kW 3-phase standby solution
Delivers 50 kW (LP) / 48 kW (NG) of three-phase power—ideal for large homes, commercial buildings, light industrial sites, or critical loads requiring robust backup performance.
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Industrial-grade liquid-cooled engine
Equipped with a 6.2 L liquid-cooled industrial engine that runs at 1800 RPM for fuel efficiency, quieter operation, and long-term reliability under heavy loads.
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App-connected remote monitoring
Real-time alerts and remote status tracking via the Kohler Energy Management App add convenience and proactive oversight—helpful for facility managers and remote owners.
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Fast automatic response & clean power quality
Advanced excitation and regulation deliver stable voltage and frequency with ultra-low distortion, protecting sensitive electronics and ensuring full-load pickup within ~10 seconds of outage detection.
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Quiet, durable aluminum enclosure
Sound-attenuating housing keeps noise low (~61 dB @ 7 m) while the corrosion-resistant finish and rugged build support outdoor installation near structures.
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Flexible fuel & installation advantages
Runs on natural gas or liquid propane with simple field conversion and meets NFPA setback requirements, allowing closer siting and installation flexibility.
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Advanced controller & diagnostics
The RDC2 controller provides detailed local data, system diagnostics, and integration with transfer switches for streamlined operation and maintenance.
Q&A
Q1: What is this generator designed for?
A: A 48 kW 120/208 V 3-phase standby generator is ideal for commercial buildings, small businesses, and large homes with three-phase electrical service needing dependable backup power.
Q2: Does it support automatic backup power?
A: Yes — when paired with an automatic transfer switch (not included), it automatically restores power during outages.
Q3: What fuel options does it support?
A: It runs on clean-burning natural gas or liquid propane (LP) with simple field conversion.
Q4: What’s App Connect / remote monitoring?
A: The Kohler Energy Management App provides real-time alerts and remote monitoring of system status.
Q5: How much power does it deliver?
A: Rated at approximately 48 kW on natural gas and 50 kW on LP at 120/208 V 3-phase.
Q6: Is the power quality good for sensitive equipment?
A: Yes — excellent voltage and frequency regulation with ultra-low total harmonic distortion (THD) protects sensitive electronics.
Q7: How quiet is it?
A: Sound-attenuating aluminum enclosure with internal silencer and insulation keeps noise under ~61 dB at 7 m.
Q8: What engine and controls are included?
A: It uses a liquid-cooled Kohler 6.2 L industrial engine with the RDC2 controller for advanced diagnostics and control.
Maintenance Tips
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Run Weekly Exercise Cycle
Keep the system active with automatic self-tests (≈20–30 minutes) to maintain engine lubrication and readiness.
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Follow Oil & Filter Maintenance Schedule
Change engine oil, oil filter, and air filter at recommended intervals to protect the high-performance industrial engine.
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Inspect Battery & Charger Monthly
Ensure strong battery voltage and clean terminals for fast, reliable automatic startup.
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Monitor Fuel System (NG/LP)
Check fuel pressure, regulators, and line integrity for stable 3-phase power delivery under heavy load.
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Clean Air Intake & Enclosure
Remove dust, debris, and obstructions to maintain cooling efficiency and prevent overheating.
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Test Under Load Periodically
Simulate real facility demand to confirm voltage stability and proper phase balancing.
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Use App Connect Monitoring
Track alerts, runtime history, and system health remotely for proactive maintenance and reduced downtime.
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Inspect Electrical Components
Tighten terminals, breakers, and transfer switch connections to ensure safe and stable operation.
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Check Cooling System (if applicable)
Verify coolant levels and airflow for consistent performance in high-demand standby operation.
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