Model 277EC
User-Friendly Engine Idle Limiter

The Model 277EC Engine Idle Limiter is designed to help save fuel and protect the environment by limiting the time that an engine is permitted to remain idling when the vehicle is parked. The installation of this unit will help to assure compliance with recent enacted laws regulating the allowable idle times of certain classes of vehicles.

NEW! View the fuel savings of a CAT 988 over 4 months before and after the installation of a Model 277EC Engine Idle Limiter.

View an installation guide for CAT 323D L Excacators.

At a Glance

• Size: 2.875" (7.5cm) squre x 1" (3cm) tall
• Complies with Region 1 EPA Mandatory Idle Limit and conforms to Federal Motor Carrier Safety Regulations 49.CFR.393
• Compatible with ECM and non-ECM controlled engines
• Complies with CAT SEPD0967 Mobile Earthmoving Equipment Automatic Engine Shutoff Systems safety recommendations
• Optional 3 minute shutdown - Complies with DE, CT & DC Idling limits (Order Model 277EC-3)
• Available with Mild Weather Option
• Comes factory pre-set with 5 minute delay; 10 minute delay is user adjustable
• Reduces RPM count by millions per year, extends engine life, stops fuel waste
• Gas or diesel engines, 12v or 24v, manual or automatic transmission
• Fast installation - 4 wires to connect
• Accessory shutdown to save battery
• 2 year warranty
• Complies with California Air Resource Board (CARB) idle time limiting regulation
• It gets even better! If you install an idle limiter you get a tax break as well. In the Energy Improvement and Extension Act (EIEA) of 2008, Section 206 excludes certain idling reduction devices from the federal excise tax. This law amends section 4053 of the Internal Revenue Code.
• Inhibits shutdown during regeneration cycle

Attention Fleet Owners: We're willing to have our Engine Idle Limiter prove how much you can save in your application. Contact Bob Shaffner, Flight Systems CEO and arrange for a demo unit. We will supply a demo unit(s) at discounted prices. If you are willing to compare total fuel usage over 2 or 3 months on 2 vehicles; one with an Engine Idle Limiter, one without, and send us the results, we'll supply the unit at no charge to you.

The Model 277EC is now in current production. As of June 1st, 2011 We are offering discounted pricing on our remaining inventory of 277 units. Please contact us for details.

How it Works

A countdown sequence is initiated when the parking brake (or other switch that is ground when engaged) is set OR command signal is received from "Park" position (switch closure to +). If the signal is removed before the time period expires the unit is reset and the engine is not shut down. The unit is connected to the Run, Fuel Pump, or Coil circuit on the engine or the ECM Stop input.

Emissions Laws

Emissions laws are becoming more strict concerning engine idling. California, New Jersey, Florida, Maryland, Pennsylvania, Massachusetts, and New York have passed legislation limiting the idle times of on-highway and off-highway commercial & industrial vehicles to no more than 5 minutes. Similar legislation pending in other states – visit Compendium of Idling Regulations (Updated July 2010) for an up to date list maintained by American Transportation Research Institute (ATRI). Install this low-cost Model 277EC Engine Idle Limiter and avoid fines - plus save wear & tear, unnecessary emissions & wasted fuel. This cost-effective engine idle timer complies with these requirements.

Optional Equipment

Idle Limiter Service Tool

Fourteen LED indicators enable quick verification of vehicle wiring on new Idle Limiter installations and speed troubleshooting of existing installations. The Service Tool will indicate when the ignition is on, the voltage input is energized, power is applied to engine "run" and accessory circuits, and when the ECM STOP signal is energized. Also featured on the unit is the abillity to directly control the engine "run" and accessory circuits. Order part number 57-A277-08 ($89).

Mild Weather Option Kit

With this optional kit installed the Engine Idle Limiter will ONLY work when outside air temperature is between 'the comfort range' of +32°F (0° C) and +80°F (+28° C). Other temperatures are available on special order. When the outside temperature is above or below this ‘comfort range’, the engine will idle as long as the operator desires while the vehicle is unattended to keep heaters & air conditioners operating in the cab. 57-A277-02 ($20).

CAT SEPD0967 Kit

For compliance with Caterpillar SEPD0967 which requires an indicator light and an exemption for operator-on-board situations we offer a low cost accessory kit that includes a red indicator light for time-out warning, and an operator-on-board inhibit switch along with installation instructions. Please order part number 57-A277-13 ($35). View the installation instructions.

Seat Switch

This switch can be used to confirm the driver’s seat is unoccupied before starting the idle limit period. Order part number 57-A277-12 ($30).

Maintenance jumper

Disables the 277EC when vehicle is being serviced and the engine needs to idle unattended. Order part number 57-A277-10 (These are supplied no charge on request as a customer service).

3 Minute Shutdown Version

Available in either 12 or 24 volts, this version of the Engine Idle Limiter will shut engines down after 3 minutes of idling time. This complies with Delaware, Connecticut, and DC Idling limits. Order Model 277EC-3.