Generac Commercial Generators

The Leader in Affordable Commercial Standby Power Solutions

Generac was the first manufacturer to recognize that commercial businesses would benefit from the affordable backup power a natural gas or LP generator provides, revolutionizing the commercial standby market. Previously, generators powerful enough for commercial use were expensive, diesel-configured systems. By offering a broad range of commercial options, Generac has made reliable backup power accessible to thousands of businesses. Units are readily available in single and three-phase, LP, and natural gas options, ensuring businesses can operate without interruption from the dangers and costly effects of power outages.

The Gaseous Advantage

Natural gas and liquid propane (LP) offer significant benefits for backup power:

• Clean Burning: Both fuel types easily meet EPA clean air standards.
• Safe Handling: As gases, they do not spill, pool, or leave a residue.
• Reliable Supply (Natural Gas): Modern gas mains with redundant backup systems ensure a continuous and reliable fuel supply, even in emergency situations.
• Storage (Propane): Propane can be safely stored for years with no quality decrease and is easily transportable, making it ideal when natural gas lines are unavailable.

Generac: A Sound Business Decision

Power outages pose a significant threat to businesses. Every year, over two million U.S. businesses experience outages lasting eight hours or more. The U.S. Department of Energy estimates that power outages cost $80 billion annually, with 98% of these losses originating from the business sector.

Financially, power failures can lead to substantial losses. For instance, when IT systems are disrupted:

• 33% of companies lose $20,000-$500,000
• 20% lose $500,000 to $2 million
• 15% lose more than $2 million

The Good News: A Standby Generator Often Pays for Itself in One Outage

*Does not include the costs of damage or inventory losses.

Stay Open While Your Competitors Shut Down

Beyond lost revenue, power outages incur direct costs and intangible losses:

• Security systems become disabled, increasing the risk of theft.
• Refrigerated goods spoil.
• Employees are idled.
• Interrupted manufacturing processes can cause long-term damage to equipment and products.
• Computer systems go down, leading to vital data loss.

Image: A commercial gas station canopy at night, illuminated, with fuel pumps visible.

Commercial Applications

Generac's commercial generators, ranging from 22-150 kW, are available in single and three-phase options and back up an extensive range of businesses. Common applications include:

• Assisted Living Complex
• Clinic
• Convenience Store
• Fire and Police Stations
• Gas Station
• Hardware Store
• Hotel
• Office Building
• Pharmacy
• Restaurant
• Retail Store
• School
• Television and Radio Stations
• Warehouse

Image: A Generac commercial standby generator unit, typically a large, rectangular, weather-resistant enclosure, installed outdoors.

Larger Residential Applications

For homeowners with larger residences, a higher kW unit may be necessary for whole-house coverage, including amenities like additional living areas, garages, air conditioners, pools, greenhouses, mother-in-law suites, and critical home medical care. Commercial generators can provide the required kW.

For residential and smaller business applications requiring less power, Generac's Guardian® Series starts at 8 kW. Contact a Generac representative or visit generac.com for more information.

Keep the Lights On and the Doors Open

Many businesses can continue serving customers during power outages, not only preventing revenue loss but also providing essential services:

• Convenience store / Gas station: Power lights, cash registers, security systems, refrigeration, and fuel pumps to serve emergency workers, evacuees, and local clean-up efforts.
• High-volume restaurant: Power lights, cash registers, refrigeration, and a full kitchen to remain open, serving people who need to eat during the outage.
• Office environment: Power lights, computers, telephones, and elevators to maintain sales and customer service availability.
• Pharmacy: Power lights, refrigeration, computers/data systems, security systems, cash registers, and telephones to ensure customers can access medication and medical supplies during emergencies.

Image: A commercial building facade, possibly a retail store or restaurant, with prominent signage.

Product Features

Generac's commercial generators are designed for quiet operation, durability in severe weather, and ease of ownership.

• Output: Available in a variety of phases & voltages:
  • (1ø) Single Phase 240V
  • (3ø) Three Phase 208V
  • (3ø) Three Phase 240V
  • (3ø) Three Phase 480V
• Higher power kW nodes.
• Continuous fuel with choice of LP or natural gas.
• Units are field convertible from natural gas to LP up to 48 kW.
• Most models available for SCAQMD.

Images: Two Generac generators of different sizes (60 kW and 45 kW).

RhinoCoat™ Finish

This system uses a process that evenly joins paint particles to every part of the metal surface. Components are baked to form a lasting bond for superior protection against the elements, ensuring consistent coverage on the enclosure and base frame.

Quiet-Test™ Mode

All automatic standby generators perform a weekly self-diagnostic test. Generac's patented, programmable Quiet-Test mode offers an ultra-quiet, neighborhood-friendly self-test, available on 22-150 kW models.

Harsh Weather Conditions? Bring it On.

Choose from premium all-weather aluminum or sturdy galvanneal steel enclosures with RhinoCoat:

• Steel: Patented galvanneal steel enclosure for superior protection.
• Aluminum: Corrosion-resistant, prolongs generator life, highly recommended for coastal, salt-air communities. Standard on 70-150 kW models.

Nexus™ Controller

Provides easy monitoring and management of generator functions, supporting remote monitoring with an LCD display, keypad, and alarm log.

Image: A close-up of the Generac Nexus™ controller interface with an LCD display and keypad.

Automatic Transfer Switches (ATS)

Generac designs and manufactures a complete line of automatic transfer switches (ATS) to meet the requirements of virtually any emergency standby power application. Generac transfer switches are known for outstanding quality, performance, and competitive pricing.

Image: Two technicians wearing hard hats and safety glasses working inside an electrical panel, installing components.

Load Management - Whole House Coverage

Nexus Smart Switch™ - Digital Load Management™

Engineered with Generac's Digital Load Management (DLM) technology, the Nexus Smart Switch is designed to cycle on and off air conditioners without additional components, allowing a smaller generator to cover more circuits. It supports up to 400 Amp service, NEMA 3R outdoor-rated enclosures, and can cover every circuit when paired with a higher kW generator.

• Cover more circuits with a smaller generator.
• Add individual DLM modules to manage up to four more large loads.
• Available in 100, 150, 200, and 400 Amp service rated configurations.
• Available in 100, 200, or 400 Amp non-service rated configurations.

Images: Generac Nexus Smart Switch™ unit and a DLM Module.

Nexus™ LTS Load Shed Switch

With a built-in 16-circuit load center, the Nexus LTS is ideal for managing more than six large loads. It is 200 Amp, service rated, and features an aluminum NEMA 3R outdoor-rated enclosure.

Image: Generac Nexus™ LTS unit.

RTS Transfer Switch

RTS transfer switches are suitable for applications requiring up to 400 Amps. They support various phase and voltage configurations (100-800 Amp, three-phase 120/208, 120/240, 277/480; 600-800 Amp, single-phase 120/240). They are compatible with generators up to 150 kW, integrate with the Nexus controller, and CSA-approved models are available.

Images: Examples of CSA models RTS-D, J and RTS-X, RTS-N models.

Controllers

Digital controls enhance generator system functionality, overseeing the transfer switch and operation. They track oil pressure, coolant levels, and voltage. Generac designs its own digital controls for superior reliability and system integration, incorporating a sealed connection point philosophy for durability and long-life protection against corrosion, vibration, moisture, EMI/RFI, dust, and static discharge.

Nexus™ Digital Controllers (up to 150 kW)

Expanded features create an improved user interface for monitoring and managing generator functions on liquid-cooled models (22-150 kW). These controllers include many features and alarms previously available only on larger models.

Accessories

Nexus™ Wireless Remote Monitor

Check generator status wirelessly from inside your home. Features visual and audio alerts for maintenance or low battery. It is small, compact, and magnetically backed for mounting.

Advanced Nexus™ Wireless Remote Monitor

Remotely control generator functions with an LCD display. Allows remote testing, setting exercise cycles, and maintenance reminders. AC powered with battery backup, it can be desk or wall mounted. View generator events, faults, warnings, voltage, frequency, and graphing capabilities.

Cold Weather Kit / Extreme Cold Weather Kit

Consists of a battery warmer with an automatically controlled thermostat, recommended for areas where temperatures drop below 32° F for extended periods.

Scheduled Maintenance Kits

Ensures the generator system is always in top operating condition and warranty requirements are met. Includes block heaters and associated mounting hardware.

DLM Module

Manage up to four additional large 240V loads by adding individual DLM modules to your Nexus Smart Switch™. These 50-amp modules are housed in a NEMA 3R enclosure for indoor or outdoor installation.

Transfer Switch Specifications

Nexus™ Smart Switches

RTS Switches

Liquid-Cooled Commercial Series Guide

* For 70 kW / 68 kW. ** For complete ordering options, review the Product Selection Guide.

Easy Order Selection Guide

To determine the correct product codes for a Commercial liquid-cooled generator and transfer switch, follow the steps below. A product code is required to order. Contact your inside sales representative or order online. Freight is FOB factory.

Generator Order Guide

Sample Product Code: QT06024GNSX

Transfer Switch Order Guide

Sample Product Number: RTSX200A3

Notes:

• ¹ 22-30 kW - CARB emission compliant in California and City of Los Angeles, may not require a catalyst.
• ² Catalyst & A/F Ratio may not be available for all models required for California and Massachusetts. Contact Generac representative for details.
• ³ Not available with catalyst. Units may not be CARB Compliant and may not be sold in California, City of Los Angeles, and Massachusetts.
• ^* Units are field convertible through 48 kW and shipped for use with Natural Gas.
• ⁴ 150 Amp only available in RTSD150A3 configuration.

Important: There are no returns, changes, or cancellations on Generac Commercial Series orders. This equipment is built-to-order once payment is received.

Image: A row of commercial buildings, including a hardware store and a restaurant, with parking lots.

Commitment to Service

Generac is committed to providing customers with unsurpassed after-the-sale service and support. Their nationwide dealer network has factory-trained technicians and maintains large inventories of Generac parts, components, and accessories. A state-of-the-art training center ensures technicians are up-to-date on product innovations and improvements, receiving comprehensive training and hands-on experience. Generac's commitment includes scheduled maintenance programs, warranty assistance, and emergency service.

A Tradition of Quality and Innovation

For over 50 years, Generac Power Systems has led the industry with innovative design and superior manufacturing. Their sole focus has been standby power, resulting in durable and reliable products. Generac designs and builds its own air-cooled engines, alternators, control systems, automatic transfer switches, enclosures, and base tanks. Vertical integration allows control over quality and material flow. Products are fully integrated power systems and factory tested before shipment. Generac is the name that home and business owners trust.

Image: Two men, one in a suit and the other in work clothes, examining a large metal component in a factory setting.