HD11, HS11/B Knife Switch with Protective Cover

Working environment conditions:

1.1 Ambient air temperature: not higher than +40℃, and is not below than -5℃.

1.2 Altitude: not exceed 2,000 meters.

1.3 Humidity:

The relative air humidity does not exceed 50% at the maximum temperature +40℃. A higher relative humidity is allowed at a lower temperature, such as up to 90% at 20℃. Special measures are taken for condensation occurred occasionally due to temperature changes.

1.4 Pollution degree: Level 3

1.5 The switch shall be installed in places where there is no obvious shaking, impact vibration or rain and snow erosion and no explosive and hazardous medium, and there is no enough gas and dust to cause metal corrosion and insulation damage in medium.