Rating:  0.5A  50V DC
Ambient temperature  -10°C~+85°C
Contact resistance  < 20MΩ
Insulation resistance  >500VDC 100MΩ  Minute
Withstand voltage  >1000VAC, 1 Minute
Operating Temperature  -25°C~+85°C
Mechanical life  >50000 CYCLES
Electrical life  >10000 CYCLES
 
They are widely used in household appliances, electric force, telecommunications, machine tool, vessel, textile, printing, Mining machine, Mustic Instrument, etc.
  http://www.chzjcz.com