MAIN CHARACTERISTICS range of product HARMONY XB4 accessory / separate part designation MARKED accessory / separate part type SHEET OF CIRCULAR LEGEND accessory / separate part category MARKING ACCESSORIES accessory / separate part destination PB SWITCH OR PILOT LIGHT marking I language INTERNATIONAL sale per indivisible quantity 10 COMPLEMETARY CHARACTERISTICS product compatibility XB4B range compatibility HARMONY XB4 product weight 0.017 KG shape of signaling unit head ROUND