Innovative power solutions.   Custom control systems.

North American Power & Controls, Inc.  Call 855-no-go-off

Sound Attenuated Diesel Generator

Modules and Enclosures

 Custom Designed and Built


——Quiet Generators built to order—-


300 kW Caterpillar Sound Attenuated Diesel Generator Module,

with aluminum double seal door frames, galvanized steel skin, AMCA certified inlet air louvers, stainless exposed exhaust stack with rainproof stainless thimble to allow leak free roof penetration.

300 kW Caterpillar 3406TA sound attenuated emergency standby diesel generator outdoor module.

Diesel Generator  Sound Attenuated Modules and Enclosures-Quality Matters!


A few features to consider:


· Enclosure skin– ensure that the material you select is conducive to the installation environment– painted mild steel will start rusting with any paint chip. Galvanized steel often offers the best quality to cost compromise. Stainless steel provides premium longevity but very high cost. Aluminum provides good corrosion resistance but has high cost and is more prone to damage than stainless.

· Enclosure roof—make sure you specify a pitched roof to prevent rain puddling and subsequent corrosion failure.

· Ventilation openings– a simple screen opening may provide low cost, but will likely allow rain intrusion. Specifying AMCA certified louvers will provide reliable openings that prevent rain intrusion and block vermin and debris. A good rule of thumb is to allow a minimum of 1 square foot of free opening per 1000 ft3 of ventilation/cooling air.

Caterpillar sound attenuated generator module with pitched roof to prevent rain pudding.

300 kW Caterpillar standby emergency diesel generator module installation showing pitched roof.

We design and build super quiet diesel generator modules and engine rooms within existing buildings. We can provide an acoustical study demonstrating anticipated sound levels at the property line– this is especially useful when attempting to get a building permit for an engine installation in a sensitive area.

We’ll guarantee the operating sound level, in writing, to the level that you require. Diesel generator installations or modules providing less than 50 dBA 6 feet from the installation have been installed. We can build a super quiet  generator for you!

750 kW Caterpillar sound attenuated super quiet outdoor module outside view from West.

750 kW Caterpillar, ultra quiet, skid mount radiator, standby generator set

750 kW Caterpillar sound attenuated super quiet diesel emergency standby generator outside view from South West.750 kW Caterpillar sound attenuated standby emergency diesel generator module showing left hand skid view.750 kW Caterpillar sound attenuated emergency standby diesel generator module showing right hand skid view.

750 kW Caterpillar, above and right,  inside views of the module– very roomy to allow easy service,

750 kW Caterpillar sound attenuated super quiet emergency stand by diesel generator module- showing the fuel-water seperator system and hand priming pump assembly.750 kW Caterpillar sound attenuated super quiet emergency standby diesel generator module- showing the custom fabricated generator main and load bank breaker switchgear.

750 kW Caterpillar, above ,fuel water separator system with hand priming pump and isolation valves– filters can be changed with engine is running. Notice the vacuum gage on the right of the assembly to allow the operator to confirm that the fuel suction pressure is within the  CAT allowable limits.

750 kW Caterpillar, above ,generator main breaker assembly, designed and built at our shop. Notice the two hole busbar landings at the bottom of the breaker– this prevents the cable lugs from turning and potentially loosening.

750 kW Caterpillar sound attenuated super quiet emergency standby diesel generator module showing the custom control panel, load bank controls and shop hound (Festus).

North American Power & Controls, Inc.

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North American Power & Controls, Inc.

1379 Lemon Street

Vallejo, CA 94590


Correspondence and billing:

North American Power & Controls, Inc.

PO Box 97

Benicia. CA 94510


Phone: 855-no-go-off



Fax: 707-552-0551


Contact us:

750 kW Caterpillar, left , engine generator control panel. This panel is equipped with an alarm annunciator that utilizes ‘first out’ detection...that is, whatever alarm occurs first will be indicated with a unique flashing rate. This in turn allows the operator to more quickly determine what fault condition may have caused a shut down– very handy for troubleshooting!

We serve the entire Bay Area including:


Alameda County, Contra Costa County, Marin County, San Francisco County, San Mateo County, Santa Clara County, Santa Cruz County, Solano County, Bay Area, Peninsula, Silicon Valley, Alviso, American Canyon, Aptos, Atherton, Benicia, Belmont, Berkeley, Brisbane, Broadmoor, Burlingame, Byron, Calistoga, Campbell, Capitola, Castro Valley, Clayton, Colma, Concord, Cupertino, Daly City, Danville, Davis, Diablo, Dublin, East Palo Alto, El Cerrito, El Granada, El Sobrante, Emeryville, Fairfield, Foster City, Fremont, Gilroy, Half Moon Bay, Hayward, Hercules, Hillsborough, La Honda, Livermore, Los Altos, Los Altos Hills, Los Gatos, Marin, Martinez, Menlo Park, Mill Valley, Millbrae, Milpitas, Modesto, Montara, Monte Sereno, Moraga, Morgan Hill, Moss Beach, Mountain View, Napa, Newark, Novato, Oakland, Orinda, Pacifica, Palo Alto, Pinole, Pleasanton, Port Costa, Portola Valley, Redwood City, Redwood Estates, Richmond, Rodeo, Rohnert Park, Sacramento, San Bruno, San Carlos, San Francisco, San Gregorio, San Jose, San Leandro, San Lorenzo, San Mateo, San Pablo, San Quentin, San Rafael, San Ramon, Santa Clara, Santa Cruz, Santa Rosa, Saratoga, Sausalito, Scotts Valley, Soquel, South San Francisco, Stanford, Stinson Beach, Sunnyvale, Sunol, Union City, Vacaville, Vallejo, Walnut Creek, Watsonville, Woodside, Yountville

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