8 compartments for future breakers – GE Industrial Solutions AKD-20 Low Voltage Switchgear Manuel d'utilisation
Page 20
AKD-20 Low Voltage Switchgear
Chapter 3. Description
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EntelliGuard G Short Circuit and Interrupting Ratings: ANSI/UL1066
Interrupting Rating Tier ANSI/UL1066 Devices, LVPCB
Envelope 1
Envelope 2
Envelope 3
Type
240 V
480 V
600 V
1/2S Withstand
400 to 2000
3200
400 to 3200
3200
4000 to 5000
S
65,000
65,000
50,000
50,000
X
N
65,000
65,000
65,000
65,000
X
X
H
85,000
85,000
65,000
65,000
X
P
100,000 100,000
65,000
65,000
X
E
85,000
85,000
85,000
85,000
X
M
100,000 100,000
85,000
85,000
X
X
B
100,000 100,000
100,000
100,000
X
X
L
150,000 150,000
100,000
100,000
X
X
Table 3.-2. Breaker interrupting rating
Fig. 3-12. EntelliGuard G Breaker
Envelope 1 EntelliGuard G Circuit Breaker
•
2000-ampere frame size
•
Up to 85 kAIC interrupting rating
•
Four-high stacking, 22-inch wide sections
Envelope 2 EntelliGuard G Circuit Breaker
•
2000-ampere frame size
•
Up to 100 kAIC interrupting rating
•
Four-high stacking, 22-inch wide sections
Envelope 2 EntelliGuard G Circuit Breaker
•
3200-ampere frame size
•
Up to 100 kAIC interrupting rating
•
Available in 30 inch wide sections
Envelope 3 EntelliGuard G Circuit Breaker
•
4000-ampere frame size
•
Up to 100 kAIC interrupting rating
•
Available in 38 inch wide sections
3-8 Compartments for Future
Breakers
When specified, compartments may be supplied for future
addition of circuit breaker elements. These compartments are
fully equipped with drawout rails, primary disconnects, and
ancillary devices as required (i.e. secondary disconnects,
accessory devices, etc.) The opening in the breaker
compartment door (3), Fig. 3-14, is closed with a bolted-on steel
plate (2) to deter accidental contact with energized electrical
circuits.(i.e. primary disconnect stabs).
1.
Quarter-turn latch
2.
Steel plate (future breaker cubicle)
Fig. 3-13. Future Compartment
3. Future cubicle door cover
Fig. 3-14. Future breaker compartment cover (padlockable
¼ turn latch will be provided on future breaker cubicles)
3
1
2