Annunciator, Harmony XB5, Illuminated buzzer, plastic, red, 22mm, continuous or intermittent tone, 24V AC DC, Schneider Electric, Mfr#: XB5KS2B4$47.79+
Adaptor, Harmony XB4, for electrical block, mounted on 1.6mm printed circuit board, Schneider Electric, Mfr#: ZBZ010$4.99+
Contact Block, Momentary, 1NC/1NO, 30 mm, 10A @ 600V AV, Screw-clamp Terminal, Schneider Electric, Mfr#: 9001KA1$34.99+
Contact block, Harmony XAC, double contact, latching, single speed, front mounting, 2NO, Schneider Electric, Mfr#: XENG3781$35.99+
Double contact block, Harmony XAC, spring return, front mounting, single speed CO, Schneider Electric, Mfr#: XESD1181$106.99+