The stand could be removed and the siren could be mounted differently. The siren had a small stand with three legs so it could be mounted on a pole or roof. There were also two air intake spots: also one on the top and bottom. It had two solenoid boxes, one on top, and one on the bottom. It also had a smaller cone on top to reduce rain and other water-related substances such as snow from getting inside. It had ten ports and cones on the bottom and twelve ports and cones on the top. The 3T22 came in only one port ratio: 10/12. Like many other older siren models, these sirens are becoming more uncommon due to their age and because of newer technology.
In the early 1990s, the siren's production was stopped when it was replaced with the newer 2001-SRN, which could reach 126db (also measured 100 feet away), hence the name.
The siren was mainly used for air raid warnings during the Cold War era and weather warnings after the war. A 3T22A would be three phase, while a 3T22B would be single phase. The A or B determined whether the motor was three phase or single phase. In the name 3T22, the 3 stands for its three main signals: attack (wail), alert (steady), and hi-lo, and the 22 again stands for the twenty-two cones. There are four models of this type of siren. The 2T22 and 3T22 could produce 113db (measured 100 feet away from the siren). The 3T22 was superior in design because it could perform the "hi-lo" signal, which is mainly used for fire calls. In 1955, Federal designed the 3T22, which was similar, except for its name and that it had solenoids. The siren had no solenoids, so it could not perform a "hi-lo" signal. It could produce two main signals (it could produce more but the other signals were rarely used), hence the name "2T22" (the 2 at front representing the 2 choppers, and the 22 representing the amount of horns). The 2T22 had the same number of ports and cones. The Federal Signal 3T22 was originally designed as the 2T22 in 1952 or 1954. It has a very recognizable design, having a ten-port rotor (chopper) on the bottom with ten cones (horns) and a 12-port one on top with twelve cones. The Federal Signal 3T22 / 2T22 was an outdoor warning siren made by Federal Signal Corporation (formerly Federal Sign and Signal Corporation) from 1952 through the early 1990s. Note it has 7 horns on the top, and 12 horns on the bottom, which was an error made by whoever made the advertisements.
(Loose cones)įederal Sign & Signal advertising the 2T22. The data presented on this page does not represent the view of Federal Signal and its employees or that of Zippia.įederal Signal may also be known as or be related to FEDERAL SIGNAL CORP DE, Federal Signal and Federal Signal Corporation.An older 3T22 in Sandy, Oregon. None of the information on this page has been provided or approved by Federal Signal. While we have made attempts to ensure that the information displayed are correct, Zippia is not responsible for any errors or omissions or for the results obtained from the use of this information. Sources of data may include, but are not limited to, the BLS, company filings, estimates based on those filings, H1B filings, and other public and private datasets. Federal Electric sold its sirens primarily to police and fire departments as well as coal mines, which needed an efficient way of warning miners of emergencies. The data on this page is also based on data sources collected from public and open data sources on the Internet and other locations, as well as proprietary data we licensed from other companies.
The employee data is based on information from people who have self-reported their past or current employments at Federal Signal. Zippia gives an in-depth look into the details of Federal Signal, including salaries, political affiliations, employee data, and more, in order to inform job seekers about Federal Signal. Our selection ranges from incandescent, strobe, and LED strobe lights, IP69K Certified, UL/cUL, IECx and ATEX Listings, to housings designed for safe area, hazardous and explosion proof applications, a multitude of mounting options, and various operating voltages Federal Signal has visual signal lights for every application.
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