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Cummins RS40 - 40kW Quiet Connect Series 120/240V 1 Phase Liquid Cooled Standby Generator - A051Y419

Cummins RS40 - 40kW Quiet Connect Series 120/240V 1 Phase Liquid Cooled Standby Generator - A051Y419

Cummins RS40 Standby Generators 40kW - 240V | Portlandia Electric Supply

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Cummins RS40 - 40kW Quiet Connect Series 120/240V 1 Phase Liquid Cooled Standby Generator - A051Y419

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SKU PES-PS-GEN-0073

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$17,973.50 USD

$ $17,973.50 USD

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In Stock

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9+ sold

In the last 7 days

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Cummins RS40 - 40kW Quiet Connect Series 120/240V 1 Phase Liquid Cooled Standby Generator - A051Y419 $17,973.50

Specifications

Datasheet

Wattage 40kW standby

Fuel Type Natural Gas / LP (Liquid Propane)

Voltage 120/240V

Phase 1-Phase

Cooling Liquid-Cooled

What is your return policy?

Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.

What’s covered by your return policy?

Our returns policy covers all purchases made through Portlandia Electric Supply. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

How long will it take to receive my order?

All orders are processed within 72 hours and you can expect delivery on most orders within 5-7 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Our legendary lifetime customer support has helped make us the #1 online solar retailer! We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

Cummins RS40 - 40kW Quiet Connect Series 120/240V 1 Phase Liquid Cooled Standby Generator - A051Y419

The Cummins RS40 Quiet Connect Series Standby Generator delivers powerful 40kW of backup power in a 120/240V 1 phase configuration, engineered to keep your home or small business operational when the grid fails. This robust generator powers your entire property including HVAC systems, appliances, and essential equipment during utility outages. With advanced Quiet Connect technology, the RS40 operates at remarkably low noise levels, ensuring minimal disruption to your property or neighborhood. Built on Cummins' legendary reliability with liquid-cooled performance, this generator operates flawlessly in extreme environmental conditions from scorching heat to arctic cold down to -40°F, providing your family with reliable power and peace of mind year-round.

Key Features

40kW standby power output provides comprehensive whole-property backup for larger homes and estates
120/240V 1 phase system delivers reliable power distribution throughout your entire property
Dual fuel capability (Natural Gas/LP) field-selectable at installation for maximum operational flexibility and fuel security
Liquid-cooled 2.4L Inline 4-Cylinder Cummins running at 1800 RPM ensures exceptional longevity and performance under sustained loads
Quiet Connect technology with advanced sound-dampening enclosure minimizes operational noise
PowerCommand 1.1 with Self-Diagnostics with industry-leading self-diagnostics and optional remote monitoring capabilities
Extreme cold weather capability with reliable starting down to -40°F when properly equipped with optional accessories
Flexible exercise mode allows customizable testing schedules as infrequent as 2 minutes every 6 months, reducing fuel consumption and emissions
Exceptional motor starting ability handles multiple large appliances and HVAC systems under full pre-load
Durable powder-coated aluminum enclosure withstands wind loads up to 180 MPH per ASCE 7-10 standards
Compact design blends into your landscape while delivering commercial-grade power capacity

Specifications

MPN	A051Y419
Vendor	Cummins
Model	RS40
Power Output	40kW Standby
Voltage	120/240V
Phase Type	Single-Phase
Fuel Type	Natural Gas / LP (Dual Fuel, Field Selectable)
Engine	2.4L Inline 4-Cylinder Cummins
Cooling Type	Liquid-Cooled
RPM	1800
Alternator	60 Hz, 1 Phase, 4 Lead
Control System	PowerCommand 1.1 with Self-Diagnostics
Sound Level	65-70 dBA @ 23 ft (Sound Level 1 Enclosure)
Voltage Regulation	±1%
Frequency Regulation	±0.25%
Cold Weather Start	-40°F (with optional accessories)
Wind Load Rating	180 MPH (ASCE 7-10)
Enclosure Type	Advanced Aluminum with Powder Coat Finish
Application	Large Residential & Small Commercial Backup Power

Installation & Application

The Cummins RS40 120/240V Single-Phase Liquid Cooled Standby Generator is purpose-built for larger homes, estates, and small businesses that require substantial whole-property power protection. With its 40kW capacity, the RS40 powers your entire property including multiple HVAC zones, all major appliances, well pump systems, pool equipment, security systems, home office equipment, and lighting during extended utility outages. The liquid-cooled design maintains peak performance even under maximum sustained loads, while the PowerCommand 1.1 with Self-Diagnostics provides automatic monitoring, self-diagnostics, and seamless transfer switching for worry-free operation. The dual fuel capability provides strategic flexibility based on your fuel infrastructure and availability. Professional installation by a certified technician ensures proper load calculations, safety compliance with local codes, and NFPA 110 capability when equipped with appropriate accessories.

Warranty & Compliance

Backed by Cummins' comprehensive 2-year or 400-hour limited warranty (whichever comes first) with extended warranty options available up to 10 years
EPA emissions certified for emergency stationary use per 40CFR60 requirements
UL-2200 Listed for safety and reliability in residential and commercial stationary standby applications
IBC Seismic certified for earthquake-prone regions
NFPA 110 capable when equipped with necessary accessories and properly installed
Meets ASCE 7-10 wind load requirements up to 180 MPH

What is your return policy?

What’s covered by your return policy?

How long will it take to receive my order?

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Cummins RS40 - 40kW Quiet Connect Series 120/240V 1 Phase Liquid Cooled Standby Generator - A051Y419

Key Features

40kW standby power output provides comprehensive whole-property backup for larger homes and estates
120/240V 1 phase system delivers reliable power distribution throughout your entire property
Dual fuel capability (Natural Gas/LP) field-selectable at installation for maximum operational flexibility and fuel security
Liquid-cooled 2.4L Inline 4-Cylinder Cummins running at 1800 RPM ensures exceptional longevity and performance under sustained loads
Quiet Connect technology with advanced sound-dampening enclosure minimizes operational noise
PowerCommand 1.1 with Self-Diagnostics with industry-leading self-diagnostics and optional remote monitoring capabilities
Extreme cold weather capability with reliable starting down to -40°F when properly equipped with optional accessories
Flexible exercise mode allows customizable testing schedules as infrequent as 2 minutes every 6 months, reducing fuel consumption and emissions
Exceptional motor starting ability handles multiple large appliances and HVAC systems under full pre-load
Durable powder-coated aluminum enclosure withstands wind loads up to 180 MPH per ASCE 7-10 standards
Compact design blends into your landscape while delivering commercial-grade power capacity

Specifications

MPN	A051Y419
Vendor	Cummins
Model	RS40
Power Output	40kW Standby
Voltage	120/240V
Phase Type	Single-Phase
Fuel Type	Natural Gas / LP (Dual Fuel, Field Selectable)
Engine	2.4L Inline 4-Cylinder Cummins
Cooling Type	Liquid-Cooled
RPM	1800
Alternator	60 Hz, 1 Phase, 4 Lead
Control System	PowerCommand 1.1 with Self-Diagnostics
Sound Level	65-70 dBA @ 23 ft (Sound Level 1 Enclosure)
Voltage Regulation	±1%
Frequency Regulation	±0.25%
Cold Weather Start	-40°F (with optional accessories)
Wind Load Rating	180 MPH (ASCE 7-10)
Enclosure Type	Advanced Aluminum with Powder Coat Finish
Application	Large Residential & Small Commercial Backup Power

Installation & Application

Warranty & Compliance

Backed by Cummins' comprehensive 2-year or 400-hour limited warranty (whichever comes first) with extended warranty options available up to 10 years
EPA emissions certified for emergency stationary use per 40CFR60 requirements
UL-2200 Listed for safety and reliability in residential and commercial stationary standby applications
IBC Seismic certified for earthquake-prone regions
NFPA 110 capable when equipped with necessary accessories and properly installed
Meets ASCE 7-10 wind load requirements up to 180 MPH

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