The Series 57 switches are designed to mount identically to other manufacturers switches that are also designed as door opening push buttons. This gives the potential for direct replacement or a complete upgrade to the 57 series.
Illumination; outer ring: green LEDs, inner ring: red LEDs 2 million operations mechanical lifetime Operating temperature range -40 to + 85°C IP69K front protection Symbols conform to TSI, PRM and ADA Typical applications include tram and train electrical door opening