McMaster 99086A135 Grade B7 Medium Strength Steel Threaded Rod Zinc Yellow Chromate Plated, 5 8" 11 Thread Size, 3 Feet Long J4986 Pressure 150 psi Residential Pressure 150 psi Residential Commercial Commercial Phase Water Heaters 1 Includes Resistor Elements 2 Amperage Rating 20A Horsepower @ Three Phase 600V AC 15 hp Series XTPB Series Maximum Voltage Rating 600V AC Current AC 20 A NEMA Enclosure Rating No Enclosure Includes Pilot Light No Horsepower @ Single Phase 120V AC 1 1 2 hp Minimum Overload Relay Current Setting 16 A Horsepower @ Single Phase 240V AC 3 hp Maximum Overload Relay Current Setting 20 A Mounting Style DIN Rail Phase Three Terminal Connection Type Screw Terminals Horsepower @ Three Phase 208V AC 5 hp Starter Style IEC Overload Protection Type Thermal Horsepower @ Three Phase 480V AC 10 hp Horsepower @ Three Phase 240V AC 5 hp Thread Spacing 224 SVHC) Compliant