Munro Smartbox - Reduced Incoming Amperage

Munro Smartbox - Reduced Incoming Amperage

SmartBox - Reduced Incoming Amperage (The New Standard)
A great option for pump start and protection in one, the Munro SmartBox includes a preset pressure sensor that alerts the control system of potential pump damage due to loss of prime or run-dry, and will work with all reliable lawn controllers. Voltage specific – 110v or 220v – to match line voltage to your pump.

  • Accepts a low amperage start/stop signal – to provide all of the benefits of the standard SmartBox, including loss of prime and run-dry protection, even when signal amperage is reduced.
  • Compatible 2-wire system – Works with any brand, any style of 24v lawn controller.
  • For use with lawn controllers that provide less than .35 amps for pump start signaling.
  • Run-dry and dead-head protection.


  • Dimensions – 8”x8”x4”
  • Color coded wiring
  • UL listed relay
  • UL-50 Type 3R listed enclosure – approved for outdoor use, available in stainless steel or powder coated blue*


Signal Voltage Enclosure Color Electrical Rating Largest Motor Short Circuit Rating Hertz Line Voltage Phase Pressure Sensor Optional Temperature Sensor Model Number*
24 VOLT BLUE 120V - 24 FLA 120V - 2HP 120V - 5KA 60 110 VOLT 1

Normally Closed

20 PSI

Normally Open

105° F

240V - 28 FLA 240V - 5HP 240V - 5KA 220 VOLT MPLC242W22*

* Add “S” (Stainless), to end of part number.