Generac Protector Series 50,000 Watt (50kW) 120/208-Volts 3-Phase Liquid Cooled Diesel Standby Generator with Extended Run Tank

The Generac RD05034 is a high-capacity 50kW diesel standby generator, part of the rugged and code-compliant Protector™ Series. Designed for large residential estates and demanding commercial settings, this model delivers clean, reliable power with intelligent digital controls, impressive fuel efficiency, and a durable steel enclosure built to withstand tough environments. It offers both single-phase and three-phase output options, making it adaptable for a wide range of applications.

Powered by an inline 4-cylinder liquid-cooled diesel engine, the RD05034 operates at a consistent 1800 RPM, reducing wear and extending service life while ensuring smooth and steady power delivery. This model is capable of producing 200 amps at 120/240V single-phase and up to 173 amps at 120/208V three-phase, making it a reliable choice for facilities with high electrical demands.

The generator is equipped with Generac’s Evolution™ Controller, a user-friendly digital interface that includes a multilingual, two-line LCD display with color-coded backlit buttons. Real-time diagnostics, maintenance reminders, and operating status are easily accessible. The system also supports Mobile Link™ connectivity (sold separately), which allows remote monitoring and control from any smart device.

With Quiet-Test™ mode, the RD05034 runs weekly self-tests at a lower RPM, reducing both sound and fuel usage. It operates at just 65 dB(A) during test cycles and 70 dB(A) under full load, quiet enough for many residential settings. Sound performance is further enhanced by its sound-attenuated steel enclosure, coated in a sleek gray finish for durability and weather resistance.

The generator includes a UL 142-listed, double-walled base fuel tank, simplifying installation and meeting local code requirements. At full load, it consumes approximately 4.3 gallons of diesel per hour, while half-load operation requires just 2.3 gallons per hour, offering up to extended runtimes depending on tank size.

With UL 2200 listing, EPA emissions certification, and a 5-year limited warranty, the RD05034 is built to deliver reliable, compliant, and long-lasting backup power when it’s needed most.

Key Features:

• 50kW Diesel Standby Output – Ideal for commercial, agricultural, and large residential installations
• Inline 4-Cylinder Engine (1800 RPM) – Designed for long-term use, low maintenance, and efficient performance
• Multiple Voltage Configurations – Supports single-phase (120/240V) and three-phase (208V, 240V, 480V) outputs
• Evolution™ Digital Controller – LCD display with multilingual interface and maintenance tracking
• Quiet-Test™ Mode – Weekly self-testing at lower RPM for quieter operation and reduced fuel use
• Low Sound Levels – 65 dB(A) during exercise and 70 dB(A) under full load
• Efficient Fuel Use – 2.3 gal/hr @ 50% load, 4.3 gal/hr @ 100% load
• Steel Enclosure with UL 142 Tank – Double-walled tank, corrosion-resistant exterior, and code-ready installation
• Compact Footprint – Dimensions: 95.4" L x 35" W x 55.4" H; Weight: 2,114 lbs
• Certified & Backed – UL 2200 listed, EPA certified, 5-year limited warranty

The Generac RD05034 offers the performance and resilience needed to power through any outage, making it a trusted solution for those who demand uninterrupted power with the durability of diesel and the intelligence of modern control systems.

Overview:

• Product Category: Home Standby Generator
• Generator Features:
  • Automatic Voltage Regulation
  • Low Oil Alert/Shutdown
• Product Weight: 2492 lbs
• Length: 95"
• Width: 35"
• Height: 66"

Specifications:

• Voltage: 120, 208V
• Frequency: 60 Hz
• Running Wattage: 50,000 Watts
• Fuel Type: Diesel
• Amperage: 173A
• Decibel Rating @ 7m: 70 dbA
• Enclosure Material: Aluminum
• Mounting Pad: Concrete (Not Included)
• Cooling Type: Liquid Cooled
• Wi-Fi: Yes

Engine:

• Engine Brand: Mitsubishi
• Starting System: 12v Auto Start
• Cubic Capacity: 3300 CC
• Horsepower: 85 HP
• RPM: 1800 RPM
• Low Oil Alert/Shutdown: Yes

Product Assurance:

• Certifications: UL
• EPA Compliant
• Made in America
• Approved for Commercial Use
• Warranty: 5 Year Commercial, 5 Year Commercial Engine, 5 Year Residential, and 5 Year Residential Engine