Munro Startbox - 2-Wire Decoder Compatible - Pump Start Relays This Munro Startbox is a 2-Wire Decoder Compatible pump start relay. It's flexible, easy-to-install Munro pump start relay provides “pilot-duty” operation for all electrically driven pump equipment and works with any reliable brand of 24v lawn controller – including 2-wire systems and those that provide less than .35 amps for pump start. MPSR242 Series Smart Boxes are Available Voltage specific – 110 Volt ( MPSR242W11 ) or 220 Volt ( MPSR242W22 ) – each specially matched to the line voltage of the pump. This SmartBox eliminates the need for secondary transformers to be installed with decoders. Accepts a low amperage start signal from controller to provide all of the benefits of the standard StartBox, even though signal amperage is reduced. Munro StartBox Construction • Dimensions – 6” x 6” x 4” • UL and CUL listed relay • NEMA 3R UL listed enclosure StartBox - Standard Electrical Data • Munro Relay: Certified 40 AMP Relay • Resistive ( COS.=1 ): 12 AMPS • Electrical Rating: 120V - 24FLA / 240V - 29FLA • Short Circuit Rating: 120V - 5KA / 240V - 5KA • Inrush/Run: 360MA / 270MA • Phase/Hz: 1 / 60 Hz