Branch circuit protection

In what capacity are MSPs approved for use?

• Automatic Motor Controller

• Manual Motor Controller

• Remote Motor Controller 

• Wireless Motor Controller

For what kind of installation are MSPs suitable?

• Individual installation

• Group installation

• Temporary installation

• Permanent installation

What are the functions provided by MSPs (self-protected combination motor controllers)?

• Disconnect, short circuit protection, manual motor control, and overload protection

• Disconnect, overvoltage protection, manual motor control, and underload protection

• Overload protection, underload protection, automatic motor control, and short circuit protection

• Short circuit protection, overvoltage protection, manual motor control, and disconnect

What additional functions do Electronic trip MCCBs provide?

• Monitoring and metering and communication

• Overload protection and short circuit protection

•  Frequent switching capabilities

• Motor overload protection

Why is a thermal magnetic MCCB not suitable for motor overload protection?

• Because motors require a higher current rating than MCCBs can handle

• Because MCCBs are not designed for motor applications

• Because motors contain a large amount of metal and heat and cool much more slowly than the conductors that are connected to it

• Because motors require a different type of protection than MCCBs can provide

What are the two types of protection provided by Thermal Magnetic or MCCBs?

• Short circuit protection and overload protection

• Overload protection and underload protection

• hort circuit protection and underload protection

• Overload protection and overvoltage protection

What does the UR label on MCPs indicate?

• That they have thermal protection

• That they are UL listed

• That separate overload protection will have to be added

• That they are ready for use

What is the difference between MCPs and MCCBs?

• MCPs have thermal overload protection, while MCCBs do not

• MCPs are MCCBs without the thermal overload protection

• MCPs and MCCBs are exactly the same

• MCPs have a UR label, while MCCBs have a UL label

What is required after a fuse melts?

• It needs to be cooled down

• It needs to be repaired

• It needs to be replaced 

• It can be reused as is

What type of protection do Single element fuses provide?

• Overload protection for circuits

• Short circuit protection

• Overload protection for motors

• Both a) and b)