Enhance your control panels with the ABB SK 615 550-44 Engraved Fixed Legend Plate. Crafted from durable aluminum with a sleek silver gray field, this plate offers clear, standardized labeling for push buttons. Its precise dimensions ensure a perfect fit for your applications..The ABB SK 615 550-44 is an engraved fixed legend plate made of aluminum with a silver gray field. It measures 39 mm in height and 29.6 mm in width, designed for use with push buttons.