Low Voltage Circuit Protection - CEU
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1
In their enclosures, ACBs are rated at what percentage of their current rating?   
2

If the ambient temperature of a circuit breaker falls below 40 degrees C, the breaker will carry _________ current.

3
The main difference between MCCB & Power Breaker standard is the ability to remain ________ longer during fault conditions.
4

What is the main mounting method for residential circuit breakers?

5

An _______________ is unwanted or intermittent flow of current between two conductors that can ignite nearby combustible material.

6

Miniature circuit breakers are used to switch and protect the lowest common distribution voltage in an electrical system

7
The pictured image is a _________________ circuit breaker?
8

The function of the Trip Unit is to close the breaker, and reconnect the circuit in the event of a short circuit or prolonged overload of current.

9
Of the two most common low voltage power circuit breaker mounting methods, the fixed mount is the most commonly used in the US because it is less expensive.
10

The function of the arc chute in a molded case circuit breaker is to ______ and ______ the arc.