NKK Switches expanded its YB2 Series of illuminated 22 mm pushbuttons to include an outer ring illumination option. This option is achieved by adding a cap that features a luminous bright outer ring surrounding a metallic silver center. It is available in all the bright and super bright LED colors offered in the series, including blue, green, red, white and amber. These LED colors are diffused through a clear outer ring, framing the metallic silver center in a halo of light. Custom legends on the cap are also available. The YB2 pushbuttons are tamper resistant, flush mount, panel seal and have a super low profile. The dust-tight and splash-proof panel seal design protects the YB2 Series against low pressure jets of water from all directions and meets IP65 of IEC60529 standards. The illuminated models feature built in ballast resistors. Design engineers can choose either power rated or logic level options. Ratings are 3A at 125 V AC, 3A at 250 V AC or 3A at 30 V DC for power models with silver contacts, and 0.4 VA maximum at 28 V AC/DC maximum for logic level versions with gold contacts. Available in SPDT and DPDT momentary and maintained action, the series features crisp actuation provided by the snap-action contact mechanism. Contacts are provided with both normally open and normally closed configurations.