Manual Motor Starter, Constructional Feature Explosionproof, Dust Ignitionproof, Motor/Line Voltage 120/240 VAC, Power Rating 1 HP, Number of Poles 2, Number of Phases 1, Material Baked Epoxy Painted Aluminum Alloy, Enclosure Type Class I Div 1 and 2 Group B C D, Zone 1 and 2, Class II Div 1 and 2 Group E F G, Class III, NEMA 3R/7B/7C/7D/9E/9F/9G, Approval CSA C22.2, Hub Size 1/2 to 3/4 Inch, Number of Gangs 1