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Kohler KG125R 125kW 3-Phase 277/480V Standby Generator - KG125R-QS4

Kohler KG125R-QS4 125kW 277/480V 3-Phase Standby Generator

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SKU PES-PS-GEN-0268

Kohler KG125R 125kW 3-Phase 277/480V Standby Generator - KG125R-QS4

OEM Authorized Dealer BABA Compliant Full OEM Warranty 7-10 Business Day Delivery

$42,137.25 USD

$ $42,137.25 USD

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In Stock

Get yours today!

9+ sold

In the last 7 days

Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

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Specifications

Voltage 480V

Phase Three Phase

Product Category Generator

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.

Kohler KG125R-QS4 125kW 277/480V 3-Phase Standby Generator

The Kohler KG125R-QS4 125kW 277/480V 3-Phase Standby Generator is a top-tier industrial backup power solution designed for reliability and durability in demanding environments. Built with Kohler’s advanced engineering, the Kohler KG125R-QS4 125kW 277/480V 3-Phase Standby Generator provides efficient, quiet, and consistent power delivery, ensuring uninterrupted operation for commercial and industrial applications.

Product Features

High-Capacity 3-Phase Power Output

The Kohler KG125R-QS4 offers 125kW of continuous power output at 277/480V, making it suitable for large commercial systems, factories, and institutional facilities.

Advanced Gaseous Engine

Equipped with a robust gaseous-fueled Kohler engine, this generator provides superior efficiency, lower emissions, and longer service life while maintaining stable power delivery.

Automatic Transfer and Power Management

The system automatically transitions between grid and backup modes within seconds during outages, ensuring seamless and reliable power continuity.

Durable Steel Enclosure

The weather-resistant steel housing protects the generator from harsh conditions, extending its operational lifespan and ensuring safe performance year-round.

Quiet, Efficient Operation

Its optimized cooling system and noise-suppression enclosure deliver quiet, smooth operation, reducing vibration and environmental impact.

How the Kohler KG125R-QS4 125kW 277/480V 3-Phase Standby Generator Works

Automatic Activation and Load Transfer

When a power failure occurs, the Kohler KG125R-QS4 starts automatically, transferring the electrical load to maintain uninterrupted power for critical systems.

Intelligent Control System

Its integrated digital controller monitors system health, voltage, and engine parameters, optimizing performance while ensuring safety and stability during operation.

Specifications

Model Number	KG125R-QS4
Rated Power Output	125 kW
Voltage	277/480V 3-Phase
Engine Type	Kohler Gaseous Engine
Fuel Type	Natural Gas / Propane
Cooling System	Liquid-Cooled
Enclosure Material	Steel, Weather-Resistant
Sound Level	65 dB @ 7m
Frequency	60 Hz
Dimensions (L × W × H)	120.0 × 45.9 × 60.5 in
Weight	5870 lb

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?

Kohler KG125R-QS4 125kW 277/480V 3-Phase Standby Generator

Product Features

High-Capacity 3-Phase Power Output

The Kohler KG125R-QS4 offers 125kW of continuous power output at 277/480V, making it suitable for large commercial systems, factories, and institutional facilities.

Advanced Gaseous Engine

Equipped with a robust gaseous-fueled Kohler engine, this generator provides superior efficiency, lower emissions, and longer service life while maintaining stable power delivery.

Automatic Transfer and Power Management

The system automatically transitions between grid and backup modes within seconds during outages, ensuring seamless and reliable power continuity.

Durable Steel Enclosure

The weather-resistant steel housing protects the generator from harsh conditions, extending its operational lifespan and ensuring safe performance year-round.

Quiet, Efficient Operation

Its optimized cooling system and noise-suppression enclosure deliver quiet, smooth operation, reducing vibration and environmental impact.

How the Kohler KG125R-QS4 125kW 277/480V 3-Phase Standby Generator Works

Automatic Activation and Load Transfer

When a power failure occurs, the Kohler KG125R-QS4 starts automatically, transferring the electrical load to maintain uninterrupted power for critical systems.

Intelligent Control System

Its integrated digital controller monitors system health, voltage, and engine parameters, optimizing performance while ensuring safety and stability during operation.

Specifications

Model Number	KG125R-QS4
Rated Power Output	125 kW
Voltage	277/480V 3-Phase
Engine Type	Kohler Gaseous Engine
Fuel Type	Natural Gas / Propane
Cooling System	Liquid-Cooled
Enclosure Material	Steel, Weather-Resistant
Sound Level	65 dB @ 7m
Frequency	60 Hz
Dimensions (L × W × H)	120.0 × 45.9 × 60.5 in
Weight	5870 lb

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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.

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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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