Dayton 1 1/2 HP Washdown Motor,3-Phase,1750 Nameplate RPM,230/460 Voltage,Frame 145TC - 1TRZ1 Hardware and Parts it has a heavy-duty double

it has a heavy-duty double latch lock to help prevent theft

Pressure: 1010 psi @ 750 Degrees F WSP

Alternative to HCFC-141b

Coefficient of Volume: 22

Dayton 1 1/2 HP Washdown Motor,3-Phase,1750 Nameplate RPM,230/460 Voltage,Frame 145TC - 1TRZ1 Hardware and Parts it has a heavy-duty doubleAny motor used in a fan product, such as bathroom exhaust fans, wall insert fans, ceiling insert fans, attic exhaust fans, whole house fans and duct fans, etc., which are built into or within the building structure and which are likely to operate unattended or in situations in which the operator may not detect a locked rotor (stalled motor) condition must have either a manual reset thermal protector or a thermal cut off (one shot) device.