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What do the letters F, FB, H, HB or HF designate in SquareD/Schneider Electric Transformer catalog numbers?

Issue:
Common suffixes on Low Voltage Transformers

Product Line:
LV Transformers 

Environment:
Applies to Low Voltage Transformers by SquareD/Schneider Electric

Cause:
Low Voltage Transformers have different insulation systems and temperature rise classifications

Resolution:

1. An F Suffixdesignates Class 180 insulation system with 115 deg C average temperature rise in the windings
2. An FB Suffix designates Class 180 insulation system with 80 deg C average temperature rise in the windings
3. An H Suffix designates Class 220 insulation system with 150 deg C average temperature rise in the windings
4. An HF suffix designates Class 220 insulation system with 115 deg C average temperature rise in the windings.
5. An HB suffix designates Class 220 insulation system with 80 deg C average temperature rise in the windings.


CTA-ID : 2017425

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