Building Automation
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Bangladesh Distributor
Question
What are insulation levels?
Answer
There are six insulation levels in all, each with a maximum allowable temperature. Safety standards each specify the applicable insulation level.
| Insulation level | Maximum allowable temperature |
| Class Y | 90°C |
| Class A | 105°C |
| Class E | 120°C |
| Class B | 130°C |
| Class F | 155°C |
| Class H | 180°C |
Safety standard Insulation level UL Class A CSA Class B VDE Class E or B
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