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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.

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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 a nutshell, the Cat RP12000 E is a powerful portable generator mostly geared towards professionals who want to be able to deliver results, even during a power failure.

The following sections will present you in detail its power characteristics, the different outlets it offers, its overall portability, the extra features it benefits from, and any relevant emission compliance details.

Power & Run Time

The Cat RP12000 E in use

The Cat RP12000 E

The Cat RP12000 E houses a 670 cc Rato OHV V-Twin engine, which provides 120/240V, consumes gasoline and delivers a running wattage of 12,000W along with a peak wattage of 15,000W.

Its starting mechanism is based on a simple and elegant electric starter (battery included).

The fuel capacity of 13.2 gallons allows the RP12000 E to operate for around 11.7 hours at 50% load with a full tank (fuel consumption around 1.13 GPH).

Sensitive electronics can be safely plugged in the AC outlets, as the RP12000 E produces a clean sine wave, with a <5% Total Harmonic Distortion (THD).

Outlets

The control panel features the upcoming 8 AC outlets:

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 with which charging your batteries is made easy.

This Cat generator features an L5-30R receptacle, enabling an easy RV connection via an L5-30P to TT-30R adaptor. However, it is still not quite RV ready. Besides, due to the featured twist-lock L14-30R receptacle, the RP12000 E is transfer switch ready: you may connect it to a breaker box to power your household during a power outage.

Portability

The design of the Cat RP12000 E is a typical, open frame, with the dimensions of L35.7 x W32.7 x H35.8 in, offering support and stability and enabling the possibility of raising it above ground level. The generator is designed for ideal use outdoors and in rough environments.

Although this generator is technically considered 'portable' (in the sense that it can be moved), its 350 lbs make it incredibly difficult to manually lift and transport. Nevertheless, it can still be moved quite conveniently with the help of its wheel kit and its folding handle, once it is placed on the ground.

A lift hook located on the top of the frame offers an additional safety feature while facilitating the transport, loading and unloading of the generator.

Features

Panel of the Cat RP12000 E

The RP12000 E's control panel

The control panel of the RP12000 E includes a convenient meter, which displays voltage, frequency and lifetime hours, helpful for the monitoring of its status and activity. To offer you even more control and easy operation during nighttime, the panel is LED-lit.

Thanks to a built-in fuel gauge, the generator allows you to quickly, conveniently and easily check the gas level at a glance.

From a security standpoint, the product offers an automatic low oil shut-off and an overload protection (circuit breaker), allowing you to use it with a peace of mind.

With the basic documentation and an owner's manual (opens in a new tab), letting you start the generator quickly, the Cat RP12000 E also comes with several accessories, including: tool kit, funnel, oil and battery charger.

Emissions

The Cat RP12000 E is EPA-approved and CARB-compliant. Therefore, its sale and purchase are permitted in all of the 50 states, including California.

Moreover, it features a spark arrestor, making it usable in forested areas.

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. In terms of weight, one of the champions in their power range is the A-iPower SUA13000EFI, standing at just 218 lbs.
  • Since the RP12000 E boasts with a run time of around 11.7 hours at 50% load, it can be safely judged as a device of a higher run time than most generators of a comparable output. If autonomy is your priority, one of the devices of a similar power output with the highest run time is the Powerhorse 13000ES, reaching around 15 hours.
  • Autonomy holds its importance, however, it is largely dependent on the generator’s fuel capacity and so, it is nonsensible to discuss it without mentioning fuel efficiency as well. This generator is somewhat less fuel efficient than devices of comparable output: its estimated fuel consumption reaches 1.13 GPH at a 50% load. If you are concerned with gasoline efficiency, having a fuel consumption of just 0.78 GPH, the A-iPower SUA13000EFI is a device you could look out for.

The bottom line

STRENGTHS:
  • Illuminated control panel
  • Several accessories included
  • GFCI 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 generator sizing 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
Drain cleaner250250
Electric fence (25 miles)250250
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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