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Cat RP12000 E (Discontinued)

The Cat RP12000 E is a powerful open frame generator with a rated wattage of 12,000 W and a starting wattage of 15,000 W. (Read full specs)

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Cat RP12000 ECat RP12000 ECat RP12000 E

This product was discontinued. For your convenience, we decided to leave this page up.
If you were looking to purchase it, you may want to have a look at the Westinghouse WGen12000, which has similar specs.
You can also try to find it second hand on eBay, by clicking on the button below.

Description

The best choice when the job calls for power. The Cat RP12000 E delivers 12kW of long-lasting power for heavy duty applications in a balanced, fuss-free design. The RP12000 E is perfect for the small contractor or homeowner with big power needs who also wants premium features and the flexibility of a portable generator. Built with a 670cc V-Twin OHV motor, Low Harmonic Distortion all copper generator and premium control panel, this generator delivers durable, quality power.

Zoom on the Cat RP12000 E

In short, the Cat RP12000 E is a powerful portable generator adequately designed for professionals who want to be able to deliver results, even during a power failure..

In the forthcoming sections, you'll delve into its power characteristics, the various outlets it offers, its overall portability, and the additional features it boasts.

Power & Run Time

The Cat RP12000 E in use

The Cat RP12000 E

Running on gasoline, the Cat RP12000 E utilizes a 670 cc Rato OHV V-Twin engine to deliver 120/240V, offering a running wattage of 12,000W and a starting wattage of 15,000W.

This generator is started via a user-friendly and hassle-free electric starter (battery included).

With a fuel capacity of 13.2 gallons, the RP12000 E can run for around 11.7 hours at 50% load when the tank is full (fuel consumption is approximately 1.13 gallons per hour).

The RP12000 E generates a clean sine wave: providing <5% Total Harmonic Distortion (THD), delicate electronics can be plugged in its AC outlets safely.

Outlets

The control panel features 8 AC outlets as follows:

Two Duplexes 120V 20A (5-20R) GFCI
Two 120V 30A (L5-30R) receptacles
120/240V 30A (L14-30R) receptacle
120/240V 50A (14-50R) receptacle

It also sports 1 DC outlet: there's a 12V 8A (cigarette lighter style) receptacle enabling simple battery charging for added ease.

Despite not having the 'RV Ready' status, this Cat generator provides the benefit of convenient RV compatibility through its L5-30R receptacle, enabling you to easily power your RV using an L5-30P to TT-30R adaptor. Besides, with its twist-lock L14-30R receptacle, the RP12000 E is designed to be transfer switch ready, allowing easy connection to your breaker box for powering your home during a blackout.

Portability

Measuring L35.7 x W32.7 x H35.8 in, the Cat RP12000 E showcases a classic open frame layout, guaranteeing stability and simple maintenance access to components, while facilitating air circulation. The device has been designed for tough environments and demanding outdoor use.

Despite its 350 lbs, the generator falls under the category of 'portable,' signifying its movability, although its weight may hinder easy portability. Despite the restricted maneuverability, its wheel kit and its folding handle provides a solution, allowing for convenient shifting once the generator is positioned on the ground.

In addition, the device is equipped with a lift hook on the top of its frame, which provides extra safety during the loading, unloading and transport of the generator.

Features

Panel of the Cat RP12000 E

The RP12000 E's control panel

Included in the control panel of the RP12000 E are a convenient meter, showing voltage, frequency, and lifetime hours metrics, essential for monitoring its status and activity. To offer you even more control and easy operation during nighttime, the panel is LED-lit.

With its built-in fuel gauge, the generator provides quick and convenient gas level checks.

From a security point of view, the generator is equipped with an overload protection (circuit breaker) and an automatic low oil shut-off, giving you a peace of mind during use.

Beyond the standard documentation and an owner's manual (opens in a new tab) to assist with setup, the Cat RP12000 E ships with supplementary accessories: tool kit, oil, battery charger and funnel.

Product Videos

The Cat RP12000 E versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Cat RP12000 E compare to generators of similar power (between 10000 and 14000 W).

  • Considering its dry weight of 350 pounds, the Cat RP12000 E is one of the heavier generators producing between 10000 and 14000 running watts. if you wish to prioritize weight, the A-iPower SUA13000EFI is one of the top contenders in its power category, weighing only 218 pounds.
  • Thanks to an impressive running time of around 11.7 hours at 50% load, the RP12000 E benefits from a higher run time than many generators of a similar output. If extended autonomy is what matters most to you, the Powerhorse 13000ES could be an excellent choice, offering one of the longest run times among units in its power category, reaching around 15 hours.
  • The run time is important, but also hugely depends on the capacity of the fuel tank and doesn't mean much if we don't talk about fuel consumption as well. This generator is not fuel-efficient compared to devices of similar output: its estimated fuel consumption stands at 1.13 GPH at a 50% load. If gasoline efficiency is at the top of your list, you may want to have a look at the A-iPower SUA13000EFI, which has great fuel efficiency, with a gas consumption of only 0.78 gallons per hour.

The bottom line

STRENGTHS:
  • Illuminated control panel
  • Several accessories included
  • GFCI Outlets
  • Impressive quantity of AC outlets
  • 4 different AC outlet types
  • Electric start
  • Clean sine wave
  • High run time
WEAKNESSES:
  • No recoil back-up
  • No remote start
  • On the heavy side (350 lbs)
  • Low fuel efficiency

Do you own the Cat RP12000 E and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterNo
Parallel capableNo
RV readyNo
FuelGasoline
Engine670 cc Rato OHV V-Twin
Starting systemElectric
Warranty2 years
Power
VoltageAC: 120/240V 60 Hz, DC: 12V
Running watts12,000 W
Starting watts15,000 W
Running amps (@120/240V)100/50 amps
Peak amps (@120/240V)125/62.5 amps
Run time @50% load11.7 h
Run time @25% loadUnknown
Features
GFCI outletsYes
Covered outletsYes
Automatic Voltage RegulationYes
AC outlets
  • 2x Duplex 120V 20A (5-20R) GFCI
  • 2x 120V 30A (L5-30R)
  • 1x 120/240V 30A (L14-30R)
  • 1x 120/240V 50A (14-50R)
DC outlets1x 12V 8A (cigarette lighter style)
Data centerVFT
IndicatorsNo
Fuel tankMetal, 13.2 gal
Fuel gaugeYes
Misc
Weight350 lbs
Approx. dimensions (L x W x H)35.7 x 32.7 x 35.8 in
Noise (lower limit)Unknown
THD< 5%
ComplianceCARB, EPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralBonded to frame
Accessories includedOil, funnel, tool kit, battery charger, battery, and wheel kit
Other model numbers502-3700
UPC815683023891

Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.

Spec Improvement×

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About Cat

Caterpillar Inc., often abbreviated as simply CAT, is an American engineering corporation, whose product range includes machinery, engines, financial products, mobile phones and of course, power generators. The company, founded in 1925, is one of the backbones of the US Dow Jones index and is placed among the Fortune 500 list. While CAT mainly focuses on industrial scale generators, it also provides a wide range of portable and household-scaled devices. CAT portable generators were engineered and designed in Mossville, Illinois, and Belfast, Northern Ireland. However, their production was outsourced to China.

Warranty Information

The Cat RP12000 E is covered under a warranty for up to 2 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of Cat generators, please consult Cat's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-844-PWR-ME-UP (844-797-6387).

Questions & Answers

What can it power?
Examples of items that can be simultaneously powered.
The examples below are based on a maximum load of 80% and estimated wattages. For a more accurate estimation, use our wattage calculator.
ItemRunning WattsStarting Watts
At homeMicrowave (1000 watts)15001500
AC (10,000 BTU)15002200
Electric fry pan15001500
Dish washer15003000
Sump pump (1/2 hp)10502150
Refrigerator (energy star)1921192
Electric range21002100
Satelite receiver250250
Total9592 W11092 W
For workElectric welder90009000
Electric fence (25 miles)250250
Drain cleaner250250
Bug zapper8080
Total9580 W9580 W
What is the thd of this unit? (Asked April 28, 2020)

As indicated in the table above, the THD is <5%.

Who makes the cat rp12oooe engine (Asked January 30, 2021)

The engine is manufactured by Rato.

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