Pressuretrol® Limit controllers L4079A, B, W, L604N

The L4079A,B, and W PressureTrol^® Limit Controls are high pressure limit switches that break electrical circuits when pressure rises to a preset value. The L4079A and B can be used with steam, air, noncombustible gases, and fluids noncorrosive to the sensing element. L4079W is for use on oil burner systems.

Features & Benefits:

• L4079A has two ganged spst switches; breaks two circuits (may be both sides of the power supply) simultaneously
• L4079B has one spst switch
• L4079W is the same as L4079B but has seals for oil applications
• MICRO SWITCH^® snap-acting switches are visible through transparent cover
• Switches open automatically but must be reset manually
• Trip-free reset mechanisms do not permit the limiting role of the PressureTrol^® Control to be defeated by jamming the reset lever
• Control does not need leveling
• The L4079 is unaffected by moderate vibration