There are two types of I range switch (iSW Switches) they have different properties and temperature ranges.
The difference is the ISO Standard that the product is manufactured to comply with:

• IEC/EN 60669
• IEC/EN 60947-3

For 20-32A they comply with IEC/EN 60669
For 40-125A they comply with IEC/EN 60947-3

The operating temperature of I range switches is:-

• For IEC/EN 60669 devices between - 20°C...+50°C without derating.
• For IEC/EN 60947-3 devices -25...+60 °C without derating.

Their storage temperature must be:-

• For IEC/EN 60669 devices between - 40...+100°C
• For IEC/EN 60947-3 devices between -40...+85 °C

Released for: Schneider Electric UK