Nema Flashcards
1
Q
1 101
A
Master element
2
Q
02
A
Time delay
3
Q
08
A
Control power disconnecting device
4
Q
11
A
Multifunction device
5
Q
21
A
Distance relay
6
Q
23
A
Temperature control device
7
Q
27
A
Under voltage
8
Q
37
A
Undercurrent or under power relay
9
Q
43
A
Manual transfer or selector device
10
Q
50
A
Instantaneous over current relay
11
Q
50BF
A
Instantaneous breaker failure
12
Q
50G
A
Ground instantaneous over current
13
Q
50N
A
Neutral instantaneous overcurrent
14
Q
50P
A
Phases instantaneous overcurrent
15
Q
50/87
A
Instantaneous differential
