Watts 1 1 4 740 030 FS Hot Water Relief Valve, Iron, FNPTF x FNPTF, 1 1 4 in x 1 1 2 in, 30 psi 3KD38 UL Listed HP @ 3 UL Listed HP @ 3 Phase 575V 10 hp HP @ 3 Phase 208V 7 1 2 hp Hz 60 Thermal Unit Code B Features Pvc Free Enclosure Type Painted Steel Sheet Product Type Motor starter Operating Voltage 600V AC NEMA Enclosure Rating 1 Starter Style NEMA Horsepower @ Three Phase 208V AC 7 1 2 hp Reversing Capability Non Reversing Overload Protection Type Thermal Horsepower @ Three Phase 480V AC 10 hp Minimum Overload Relay Current Setting Not Applicable Coil Voltage 24V AC Includes Auxiliary Contacts No Frequency 60 Hz Current AC 27 A Maximum Voltage Rating 600V AC Terminal Connection Type Screw Clamp Terminals Horsepower @ Three Phase 600V AC 10 hp Phase Three Horsepower @ Three Phase 240V AC 7 1 2 hp Operator Function Not Applicable Number of Auxillary Contacts 0 Includes Pilot Light No Maximum Overload Relay Current Setting Not Applicable Operator None Type Of Overload Melting alloy 3 Control Circuit Type Separate control circuit Pilot Light Without pilot light Control Units No control units Short Circuit Current Rating Circuit breaker: 5 kA at 600 V AC Stick Quantity 000 BtuH BtuH Application Hot Water Space Heating Boiler