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Environmental conditions
| Indoor use | IP30* (BS EN60529:1992 or current version)) |
| Altitude | Up to 2000 m |
| Operating temperature | +5 °C to +50 °C |
| Storage temperature | -25 °C to +70 °C |
| Relative humidity | 80% maximum (non-condensing) for temperatures up to +31 °C Linear decrease to 50% at +40 °C |
| Transient voltages | Overvoltage category I |
| Pollution degree | 2 |
* It may be necessary to house SPA3 in a suitable electrical enclosure according to the installation's environmental conditions to obtain a higher IP rating.