Quiet Connect Air-Cooled 20 KW RS20A

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Cummins Quiet Connect™ RS20A 20 kW Home Standby Generator (C20N6H)
The RS20A is a top-tier 20 kW air-cooled standby generator offering quiet, efficient power delivery for residential and light-commercial applications. It features integrated remote monitoring, intelligent load management, and rugged construction built to NFPA and UL standards.

Key Specifications

• Model – RS20A (C20N6H)
• Power Rating – 20 kW (20 kVA standby), 18 kW NG / 20 kW LPV standby
• Voltage / Frequency – 120/240 VAC, 60 Hz, single-phase
• Fuel Type – Natural Gas (NG) / Propane Vapor (LPV), field-selectable
• Engine – Cummins QSJ999G, 999 cc V-twin, air-cooled
• Rated Current – 75 A (NG) / 83.3 A (LPV)
• Rated Speed – 3600 rpm
• Noise Level – ≈ 65 dB(A) at 23 ft (7 m) under normal load
• Dimensions – 34.1" L × 36.0" W × 27.3" H (865 × 915 × 694 mm)
• Weight – 540 lbs (245 kg)
• Enclosure – Aluminum exterior, galvanized steel interior; NEMA 3R; NFPA 37-compliant (18 in clearance)
• Operating Temperature – 0 °F to 122 °F (-18 °C to 50 °C) standard; -40 °F (-40 °C) with cold-weather kit
• Intelligent Load Management – Supports control of up to 4 high-load circuits
• Remote Monitoring – Integrated Cummins Connect™ cloud via Wi-Fi or cellular
• Sound Attenuation – Patented design for low-noise operation
• Protections – Low oil pressure, over-temperature, over-voltage, and more
• Total Harmonic Distortion – < 5%
• Transfer Switch – Sold separately; compatible with RA series ATS
• Certifications – UL 2200, CSA C22.2 No. 100, EPA, NFPA 37
• Warranty – 5 years / 2,000 hours limited warranty