Tripp Lite Healthcare Surge Suppressors protect equipment in hospitals, clinics, dental offices and more. UL 60601-1 Option: all models can be used outside of patient-care areas (in office areas, server rooms, and nurses stations); however, one model (SPS415HGULTRA), is also UL 60601-1 certified for use within patient-care areas. UL 60601-1 is a patient shock prevention measure required for all electronic devices that potentially come in contact with patients during treatment. Hospital-Grade Outlets & Plug: all models feature hospital-grade outlets and plug (identified by a green dot) that provide greater retention, lessening the chance of accidental disconnection. Healthcare Surge Suppressors are available in a variety of outlet and cord configurations with or without integrated outlet covers.