Class 2 Transformers Quiz

What is the maximum VA rating for Class 2 transformers?

• 100 VA

• 50 VA

• 75 VA

• 40 VA

Which of the following is an example of a Class 2 transformer application?

• Power supply for an HVAC system

• Industrial machinery

• High voltage power lines

• Nuclear power plant

What is the typical voltage for the secondary of Class 2 transformers?

• 50 volts

• 24 volts

• 100 volts

• 75 volts

What does it mean if a transformer is inherently protected?

• It uses a high impedance design to protect itself

• It requires an external fuse

• It is always on

• It cannot be used in residential areas

Which organization regulates Class 2 transformers?

• National Electrical Manufacturers Association (NEMA)

• Underwriters Laboratories (UL)

• International Electrotechnical Commission (IEC)

• American National Standards Institute (ANSI)

In an electrical transformer, High Voltage (HV) side will have more number of turns

(more coils of wire) than the Low voltage (LV)

T/F

• True

• False