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PHS1 environmental conditions
The following environmental conditions comply with (or exceed) BSEN61010-1:1993:
| Indoor use | IP30 (no protection against water) | 
|---|---|
| Altitude | Up to 2000 m | 
| Operating temperature | +10 °C to +40 °C | 
| Storage temperature | -10 °C to +70 °C | 
| Relative humidity | 80% maximum for temperatures up to +31 °C linear decrease to 50% at +40 °C | 
| Transient overvoltages | Installation category II | 
| Pollution degree | 1 |