







Model: C40N6 - A051Y420 | Natural Gas/Propane | 120/208V 3-Phase
Keep Your Business Running No Matter What
When the power goes out, your business can't afford to stop. The Cummins RS40 commercial generator delivers reliable 40kW backup power that kicks in automatically, so you never miss a beat. Whether you're running a small manufacturing facility, medical office, or retail operation, this generator has the muscle to keep your essential systems online.
Built to Handle Anything Mother Nature Throws at It
This isn't your typical backup generator. The RS40 is engineered for the real world, where temperatures drop to -40°F and storms bring 180 mph winds. Its rugged aluminum enclosure with powder-coated finish resists corrosion and weathering year after year. Plus, it's one of the quietest generators in its class, so you won't disturb your neighbors or employees when it's running.
Smart Exercise Mode Saves You Money
Nobody wants their generator running more than necessary. The RS40's flexible exercise mode lets you set when and how often it tests itself – as little as 2 minutes every 6 months. This smart feature cuts down on fuel costs, reduces emissions, and keeps noise to a minimum while ensuring your generator stays ready for action.
Service Made Simple
When you need maintenance, the RS40 makes it easy. Removable panels and strategically placed service doors give technicians quick access to all the important components. The PowerCommand electronic control system continuously monitors performance and alerts you to any issues before they become problems, helping prevent costly downtime.
Professional-Grade Power You Can Count On
Key Specifications:
- Power Output: 40 kW
- Fuel Type: Natural gas or liquid-propane (LP)
- Voltage: 120/208V, 3-phase
- Engine Speed: 1800 RPM liquid-cooled design
- Noise Level: 63 dB(A) industry-leading quiet operation
- Wind Rating: 180 mph
- Certifications: EPA, UL, and IBC Seismic standards; NFPA 110 capable when properly equipped
- Remote Monitoring: Yes, when connected to WiFi
- Weight: 1356 lbs.
- Dimensions: 94"L x 34"W x 45.5"H
- Automatic Transfer Switch: Not included. See Cummins OTEC-Series Switches
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Certifications That Matter
The RS40 meets all the standards that matter for commercial applications, including EPA emissions requirements, UL safety standards, and IBC seismic certifications. When properly installed with the right accessories, it can also meet NFPA 110 emergency power requirements.
Warranty Protection
Your investment is protected with a comprehensive 2-year limited warranty. Extended warranty options are available for additional peace of mind.
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