Generac’s 35 kW, 40 kW & 50 kW diesel generators are built to deliver reliable standby power for small industrial and commercial operations. Driven by a 4-cylinder turbocharged engine and paired with Generac’s in-house-built alternator, it provides efficient, clean energy you can count on. Available in multiple enclosure options and phase configurations, this generator is ideal for keeping essential equipment and systems running without interruption.
Reliable Diesel Power: 3.3L turbocharged, aftercooled engine provides steady output and excellent fuel efficiency for standby applications.
POWER ZONE® 410 Controller: Digital control panel with dual LCD displays and programmable logic for real-time system monitoring, safety alarms, and NFPA 110 compliance.
Industrial-Grade Alternator: Brushless excitation alternator with Class H insulation and < 5 % THD for clean, consistent power to sensitive loads.
Engineered Enclosures: Generac-manufactured steel and aluminum enclosures offer corrosion resistance, noise attenuation, and weather protection from Level 1 to Level 2 sound ratings.
Integrated Fuel System Options: UL 142/ULC S601 double-wall base tanks available for extended run times and secure, leak-protected operation.
Performance
Compact: When space matters, Generac's D3.3L packs a punch in a small package, making it ideal for tight spaces.
Sound Levels/Enclosures: Open and Weather-Protected through Level 2 Sound-Attenuated Enclosures for stringent noise requirments.
Construction: Steel or aluminum with RhinoCoat™ powder-coated finish protects against rust, UV and weather for long-term durability
Product Snapshot
Power Nodes: 35 kW | 40 kW | 50 kW
Ideal For: Telecom, Edge Computing, Small Businesses, Municipal Infrastructure, Storage and Distribution, and Healthcare
Applications: Standby power where space is limited and efficiency matters.
Footprint: Engineered with multiple enclosures with space efficient designs
Operating Temperature: Up to 122 °F (50 °C) before derate
Certifications: EPA Certified Stationary Emergency, UL2200, NFPA 110 Compliant
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