Cummins RS30 - 30kW
Cummins RS30 - 30kW
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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

$19,105.47 USD
$ $19,105.47 USD
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9+ sold

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Unlimited lifetime support, always available.

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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 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

Customer Reviews

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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 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
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Customer Success Stories

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.

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Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

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