NEMA Flasher Model 204 4092 30" is the standard minimum

30" is the standard minimum size of STOP Signs allowed for use on official roadways

Please be sure to select the ROUTE NUMBER that you would like on the sign

FHWA TYPE 170

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NEMA Flasher Model 204 4092 30" is the standard minimumThe standard in the traffic industry the Model 204 series flashers are designed for use in traffic signal systems and compatible with TS1, TS2 and basic flasher cabinets in accordance with the NEMA Standard. Meets NEMA TS1 and TS2 requirements Power Input: 60 135 Volts AC Power Output: 15 Amps Max Flash Rate: 56 3 flashes minute at 60Hz Leakage: Less then 10 Milliamperes Zero Voltage Switching 2 Year manufacturer warranty Proudly Made in the USA!