Munro SmartBox MPLC Series - Pump Start Relay - Standard • A great option for pump start and pump protection in one, the Munro Smart-Box includes a preset pressure sensor that alerts the control system of potential pump damage due to loss of prime or run-dry. All external devices are powered at reduced 24 volts. Low risk of line voltage harming people or pets. • Works with any residential turf irrigation pump - available in 24v, 110v, 220v coils • Color-coded wiring - makes hook up a breeze • UL listed relay and enclosure - safe and reliable MPLC Series Box Construction • Dimensions - 8"x8"x4" • Quick connect terminals • UL listed relay • NEMA 3R UL listed enclosure - approved for outdoor use Munro SmartBox MPLC Series Products Includes: • Adjustable Time Delay ( Factory Set for 30 Sec Time Delay ) • 40 AMP Certified Munro Relay • 4-Wire Color Coded Hook-Up • Grounding Provision • Low Pressure Sensor and Boot ( Included )