Pad-printed ink on face of receptacle for superior abrasion resistance. Controlled receptacle marking is NEMA-approved and compliant with 2014 NEC®. Can be used to control loads using WattStopper® DLM and other building control systems. CH version only: Split circuit tab broken at the factory, allowing half of the receptacle to be controlled. Tri-drive steel terminal screws. Internal screw-pressure-plate back and side wire capability. Two back wire holes for more wiring flexibility. 0.032 inch thick, brass, triple-wipe power contacts for lasting retention. Two drive screws anchor strap to back body and face where abrupt removal torque is strongest. Corrosion-resistant, plated steel strap locked into face and back body to resist pulling away from face/body assembly. Auto-ground eliminates the necessity to terminate grounding conductor in device. Easily accessed break-off, line-contact connecting tab for fast, easy split-circuit wiring.