What is the Cummins RS30 generator used for?

The Cummins RS30 is designed for small commercial facilities and multi-unit residential properties that require dependable three-phase standby power. It supports essential systems such as HVAC, lighting, refrigeration, security, and business-critical equipment during utility outages.

Is the Cummins RS30 a three-phase generator?

Yes, the Cummins RS30 operates on a 120/240V three-phase configuration. This allows balanced power distribution, making it ideal for commercial applications and properties with three-phase electrical loads.

How loud is the Cummins RS30 standby generator?

The Cummins RS30 operates at approximately 60–65 dBA at 23 feet. Its Quiet Connect Series enclosure significantly reduces noise, allowing it to run without disrupting nearby businesses or residential areas.

What fuel options are available for the Cummins RS30?

The RS30 offers dual-fuel capability and can operate on either natural gas or liquid propane. The fuel type is field-selectable during installation, providing flexibility and fuel redundancy.

Can the Cummins RS30 operate in extreme weather conditions?

Yes, the Cummins RS30 is engineered for extreme environments. When properly equipped, it can start reliably in temperatures as low as -40°F and withstand wind speeds up to 180 MPH.

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Cummins RS30 - 30kW Quiet Connect Series 120/240V 3 Phase Liquid Cooled Standby Generator - A051Y405

Cummins RS30 - 30kW Quiet Connect Series 120/240V 3 Phase Liquid Cooled Standby Generator - A051Y405

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Cummins RS30 - 30kW Quiet Connect Series 120/240V 3 Phase Liquid Cooled Standby Generator - A051Y405

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SKU PES-PS-GEN-0068

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$19,057.71 USD

$ $19,057.71 USD

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Cummins RS30 - 30kW Quiet Connect Series 120/240V 3 Phase Liquid Cooled Standby Generator - A051Y405 $19,057.71

Specifications

Datasheet

Wattage 30kW standby

Fuel Type Natural Gas / LP (Liquid Propane)

Voltage 120/240V

Phase 3-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.

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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 RS30 - 30kW Quiet Connect Series 120/240V 3 Phase Liquid Cooled Standby Generator - A051Y405

The Cummins RS30 Quiet Connect Series Standby Generator delivers dependable 30kW of backup power in a 120/240V three-phase configuration, engineered for small commercial facilities and multi-unit residential properties that require reliable, balanced power distribution. This liquid-cooled powerhouse keeps your business operational during utility outages, protecting critical systems, inventory, and revenue. Operating at whisper-quiet levels of just 60-65 dBA with advanced sound attenuation, the RS30 combines Cummins' legendary reliability with QuietConnect technology that won't disrupt your operations or neighborhood. Built to withstand extreme environmental conditions from scorching heat to frigid winters down to -40°F, this generator ensures your facility stays powered no matter what challenges arise.

Key Features

30kW standby power output provides comprehensive backup for small commercial and multi-unit residential needs
120/240V three-phase system delivers balanced, efficient power distribution across your facility
Dual fuel capability (Natural Gas/LP) field-selectable at installation for operational flexibility and fuel redundancy
Liquid-cooled 2.4L inline 4-cylinder Cummins engine running at 1800 RPM ensures long-term durability under sustained loads
QuietConnect Series design with Sound Level 1 aluminum enclosure reduces noise to 60-65 dBA
PowerCommand 1.1 control system with self-diagnostics and optional remote monitoring capabilities
Extreme cold weather capability with reliable starting down to -40°F when properly equipped
Flexible exercise mode allows customizable testing schedules as infrequent as 2 minutes every 6 months, reducing fuel consumption and emissions
Durable powder-coated aluminum enclosure withstands wind loads up to 180 MPH per ASCE 7-10 standards
Compact footprint (94"L x 34"W x 45.5"H) allows flexible installation while maintaining professional appearance

Specifications

MPN	A051Y405
Vendor	Cummins
Model	RS30
Power Output	30kW Standby
Voltage	120/240V
Phase Type	Three-Phase
Amperage	90.3A (NG/LP)
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, 3 Phase, 12 Lead
Control System	PowerCommand 1.1 with Self-Diagnostics
Sound Level	60-65 dBA @ 23 ft (Sound Level 1 Enclosure)
Cold Weather Start	-40°F (with optional accessories)
Dimensions (L x W x H)	94" x 34" x 45.5"
Weight	1,231 lbs
Enclosure Type	Aluminum Sound Level 1 with Powder Coat Finish (Sandstone)
Application	Small Commercial & Multi-Unit Residential Backup Power

Installation & Application

The Cummins RS30 120/240V Three-Phase Liquid Cooled Standby Generator is purpose-built for small commercial operations, professional offices, retail facilities, and multi-unit residential properties that demand reliable three-phase backup power. With its 30kW capacity and balanced three-phase configuration, the RS30 powers essential systems including HVAC equipment, lighting, refrigeration, security systems, and critical business operations during utility outages. The liquid-cooled design maintains optimal performance even under sustained full-load conditions, while the advanced PowerCommand 1.1 control system provides continuous monitoring, self-diagnostics, and seamless automatic transfer switching. The dual fuel capability offers operational flexibility based on your fuel availability and preferences. Professional installation by a certified technician ensures proper setup, three-phase load balancing, 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 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 RS30 - 30kW Quiet Connect Series 120/240V 3 Phase Liquid Cooled Standby Generator - A051Y405

Key Features

30kW standby power output provides comprehensive backup for small commercial and multi-unit residential needs
120/240V three-phase system delivers balanced, efficient power distribution across your facility
Dual fuel capability (Natural Gas/LP) field-selectable at installation for operational flexibility and fuel redundancy
Liquid-cooled 2.4L inline 4-cylinder Cummins engine running at 1800 RPM ensures long-term durability under sustained loads
QuietConnect Series design with Sound Level 1 aluminum enclosure reduces noise to 60-65 dBA
PowerCommand 1.1 control system with self-diagnostics and optional remote monitoring capabilities
Extreme cold weather capability with reliable starting down to -40°F when properly equipped
Flexible exercise mode allows customizable testing schedules as infrequent as 2 minutes every 6 months, reducing fuel consumption and emissions
Durable powder-coated aluminum enclosure withstands wind loads up to 180 MPH per ASCE 7-10 standards
Compact footprint (94"L x 34"W x 45.5"H) allows flexible installation while maintaining professional appearance

Specifications

MPN	A051Y405
Vendor	Cummins
Model	RS30
Power Output	30kW Standby
Voltage	120/240V
Phase Type	Three-Phase
Amperage	90.3A (NG/LP)
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, 3 Phase, 12 Lead
Control System	PowerCommand 1.1 with Self-Diagnostics
Sound Level	60-65 dBA @ 23 ft (Sound Level 1 Enclosure)
Cold Weather Start	-40°F (with optional accessories)
Dimensions (L x W x H)	94" x 34" x 45.5"
Weight	1,231 lbs
Enclosure Type	Aluminum Sound Level 1 with Powder Coat Finish (Sandstone)
Application	Small Commercial & Multi-Unit Residential 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 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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