Features high-quality, brass contacts for rock-solid electrical connections and long service life. Single-piece, solid brass or steel straps and impact-resistant nylon face and body help it shrug off hard use.• RoHS Compliant• Compact, impact-resistant nylon face and body are ultrasonically welded together for unrivaled strength.• Face color coding by voltage facilitates locating and mating of proper devices.• One piece, high-grade brass contacts offer excellent conductivity and heat-rise resistance.• Clearly marked NEMA configuration, rating, and third-party listing on each unit's face.• Single-piece, solid brass mounting strap is free of easily loosened rivets found on other brands.• Side and external screw-pressure-plate back wire capability.• Accepts #14 - #10 AWG.