I'm looking at getting a similar Normally Open ETS. I'm a llittle confused with the spec for the output: 'Output specification: DC60V 100mA(resistance load)/ AC60V 100mA(peak)/ 500mW(Max)'

I thought the output was simply sinking the orange to ground, and for the overtravel protection simply opening the ordinarily closed green and blue. What's the 60V output all about?