GE EntelliGuard G Application Manual page 31

Section 3. EntelliGuard TU Trip Unit System
Figure 3.16
Instantaneous, Override (HSIOC), Reduced Energy Let-Through Instantaneous (RELT)
.5 .6 .7 .8 .9 1 2 3
1000
900
800
700
600
500
400
Maximum Adjustable Instantaneous Pick Up,
300
Based on Nominal Frame Size for Legacy CB,
Sensor for Entelliguard G
200
Entelliguard G, Envelope 1 Short Time OFF
Entelliguard G, Envelope 2 Short Time OFF
Entelliguard G, Envelope 3 Short Time OFF
Entelliguard G Standard Range Envelope 1
100
90
Entelliguard G Standard Range Envelope 2
80
70 Entelliguard G Standard Range Envelope 2
60
Entelliguard G Standard Range Envelope 2
50
Entelliguard G Standard Range Envelope 3
40 Entelliguard G Standard Range Envelope 3
Entelliguard G Standard Range Envelope 3
30
Entelliguard G Extended Range Envelope 1
Entelliguard G Extended Range Envelope 1
20
Entelliguard G Extended Range Envelope 2
Entelliguard G Extended Range Envelope 2
Entelliguard G Extended Range Envelope 3
Entelliguard G Extended Range Envelope 3
10
9
8
7
6
5
4
Optional Extended Range (UL1066 only)
Adjustable 2-30X Trip Plug Rating
3
2
1
.9
Standard Range Adjustable
.8
2-15X Trip Plug Rating
.7
.6
.5
.4
.3
.2
.1
.09
.08
.07
.06
.05
.04
.03
.02
.01
.5 .6 .7 .8 .9 1 2 3
Courtesy of NationalSwitchgear.com
MULTIPLES OF PLUG RATING
4 5 6 7 8 9 10 20 30 40
Frame = 800 1600 2000 2500 3000 3200 4000 5000
Sensor = All All 2000 2500 3000 3200 4000 5000
CB Icw
All 15 15 15
All 15 15 15 15 10 10
All 15 15 15 10
All 15 15 15
50,000 15 15 15 15 15
65,000 15 15 15 15 15 15
85,000 15 15 15 15 15 15
65,000 15 15 15 15 15 15 12
85,000 15 15 15 15
100,000 15 15 15 15
50,000 30 30 24
65,000 30 30 30
65,000 30 30 30 25 21 19 15
85,000 30 30 30 30 27 25 20
85,000 27 25 20
100,000 30 30 24 19
Application or Circuit Breaker
Rating (lcu) Determines
End of Curve
4 5 6 7 8 9 10 20 30 40
MULTIPLES OF PLUG RATING
50 60 70
1 2 3 4 5
6000
6000
10
.1
10
.09
Reduced Energy Let-Through: RELT
.08
13
Pickup = 1.5-15X Trip Rating Plug
.07
15
.06
.05
.04
.03
.02
.01
Override Pickup with Adjustable
Instantaneous On:
42,000 A
50,000 A
65,000 A
85,000 A
100,000 A
Override Pickup with Adjustable
Instantaneous Off (UL1066 Only):
60,000 A
78,000 A
92,000 A
Depending on Circuit Breaker
Frame and Ratings
50 60 70
6 7 8 9 10 10 20 30 40 50 60
Override Pickup
Override
If lcw<lcu then
Circuit Breaker will have
an Override trip
1000
900
800
700
600
500
400
300
200
100
90
80
70
60
50
40
30
20
10
9
8
7
6
5
4
3
2
1
.9
.8
.7
.6
.5
.4
.3
.2
.1
.09
.08
.07
.06
.05
.04
.03
.02
.01
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