Item: Safety Switch Protection Method: Fusible For Use With: Class R Fuse Duty: Heavy Amps AC: 30 Voltage: 240VAC Phase: 3 HP: 3 HP @ 240VAC NEMA Enclosure Type: 1 IP Rating: 20 Metallic / Non-Metallic: Metallic Material of Construction: Steel Number of Wires: 4 Number of Poles: 3 Contact Form: 3PST Height: 14.6" Width: 7.5" Depth: 4.9" Standards: UL Listed Fuse Kit (Class R): Mfr. No. RFK03L