Model:PBS-33b technical parameter Ambient air temperature: -25 C ~ +40 C Altitude: less than 2000m Relative humidity of air: less than 90% Class 3 pollution level Protection level IP55 Switch rating: AC-15 36V/10A 110V/10A 220V/5A 380V/2.7A 660V/1.8A DC-6V/4A 12/4A 24V/4A 48V/4A 110V/2A 220V/1A 440V/0.6A Prescribed heating current: 1th 10A Electric shock resistance: less than 50m ohm Insulation resistance: more than 10m ohm Mechanical life: general button n is equal to 100 x 10^4 times; knob is more than 30 x 10^4 times. The key button n is more than 5 x 10^4 times; the emergency stop button is more than 5 x 10^4 times. Rated current and voltage: 3A 250V, 6A 125VAC Dielectric strength: >1500VAC/1min