Honeywell Modutrol IV NSR Proportional Flame SafeGuard Firing Rate Motor (300 lb-in.)

Series 41 and Series 81 Modutrol IV motors are 2-position (line- and low-voltage per motor control) spring-return motors. They are used to operate dampers or valves in applications where it is necessary or desirable to have the controlled element return to the starting position in the event of power failure or interruption. Features Integral junction box provides NEMA 3 weather protection. IIntegral spring return returns motor to normal position when power is interrupted. IMotor and circuitry operate from 24 Vac. Models available with factory installed transformer, or a field added internal transformer. IQuick-connect terminals are standard—screw terminal adapter is available. IAdapter bracket for matching shaft height of older motors is available. IMotors have field adjustable stroke (90° to 160°). IDie-cast aluminum housing. IIntegral auxiliary switches are available factory mounted, or can be field added. INominal timing standard of 30 seconds (90° stroke), and 60 seconds (160° stroke). Other timings av...