Ratings
Basic Ratings
AKA L VPCB with Micro
Versa Trip® RMS-9 pro
grammer is rated for short
time withstand current and
interrupting capacity (rms
symmetrical). The maxi
mum short-time rating is
shown for 30 cycle dura
tion at 50/60 Hz.
For de applications, elec
tromechanical EC type trip
devices are available for de
ratings up to 250Vdc.
Table
28 1
Summary
of
Breaker Ratings
Rated
Frame
Short Circuit Ratings
Voltage
Size
RMS Symmetrical
Breaker T ype
kA
Short-
With
Without
(Nominal)
(Amperes)
lnstanta-
lnstanta-
60Hz
T ime
neous Trip neousTrip
AK-25
600
22
22
22
AKR-30S
800
22
22
22 ®
AKR-30
800
30
30
30
AKR-30H
42
42
42
600
AKSIAKR-50
1600
42
42
42
AKSI AKR-50H
65
65
65
AKST I AKRT -SOH 2000
65
65
65
AKR-75
3200
65
65
65
AKR-100
4000
85
85
85
AK-25
600
22
30
22
AKR-30S
800
22
30
30®
AKR-30
800
30
30
30
AKR-30H
42
42
42
480
AKSIAKR-50
1600
50
50
50
AKSI AKR-50H
65
65
65
AKST I AKRT -SOH 2000
65
65
65
AKR-75
3200
65
65
65
AKR-100
4000
85
85
85
AK-25
600
22
42
22
AKR-30S
800
22
42
42 ®
AKR-30
800
30
42
30
AKR-30H
42
50
42
240
AKSIAKR-50
1600
50
65
50
AKSIAKR-50H
65
65
65
AKST I AKRT -SOH 2000
65
65
65
AKR-75
3200
65
85
65
AKR-100
4000
85
130
85
CD
T he maxtmum fuse ratmg ts the largest fuse whtch tests show wtll result tn proper performance of
the breaker and fuse in combination under short circuit conditions. Only Gould fuses should be
used for proper coordination.
®
Fuses are mounted on separate fuse roll-out element.
®
Refer to time-current curves GES-6000 (for EC-1) and GES-6005 (for EC-1
B).
®Observe Table 5 minimum overcurrent trip ratings.
®
Only dual ratio sensors are available on AKR-30S when programmers are furnished with High
Range Instantaneous or Triple Selective Trip.
®
Triple Selective Trip at
1 X
short-time rating when standard Instantaneous Trip is omitted.
28
Table
282
-
Overcurrent Trip Device
Current Ratings 1n Amperes
Breaker
MicroVersaTrip®RMS-9
50/60 Hz
ac
Frame
Sensor Rating
Rating
Tapped
Fixed Plug
AK-25
70, 100, 150, 225
Rating Equals
200, 300, 400, 600
Sensor Tap
150
60,
BO,
100, 125, 150
AKR-30S,
400
150, 200, 225, 250,
AKR-30
300, 400
AKR-30H
BOO
300, 400, 500, 600,
700,
BOO
BOO
300, 400, 500, 600,
AKR-50
700,
BOO
AKR-50H
1600
600,
BOO,
1000,
1200, 1600
AKRT-50H
2000
BOO,
1000, 1200,
1500, 1600, 2000
AKR-75
3200
1200, 1000, 2400,
3200
AKR-100
4000
1500' 2000' 2500'
3000, 4000
x
�Rating plug amps
s �Sensor amp rating
EC Device Rating
de·"'
40, 50, 70, 90, 100,
125, 150, 175, 200,
225, 250, 300, 350.
400' 500' 600
NOT AVAILABLE ON
AKR-30S
100,125,150,175,200,
225, 250, 300, 350,
400, 500, 600,
BOO
200, 225, 250, 300,
350, 400, 500, 600,
BOO,
1000, 1200, 1600,
2000
-
2000' 2500' 3000'
4000
2000, 2500, 3000,
4000, 5000, 6000
Table
28.3
Fused Breaker
Ratings- Maximum
600V
ac
50160 Hz
Table
28.5
Minimum EC
Trip Ratings- Amperes at
250V
de
Inter-
rupting
Fuse
Rating
Frame
Rating
RMS
Breaker
Size
Amperes Sym-
Type
Amperes
(j)
met-
rica I
Min. Max.
kA
AKU-25
600
300 1200 200
AKRU-30S
BOO
300 1600 200
AKRU-30
BOO
300 1600 200
AKRU-50
1600
450 2500 200
AKRU-75® 3200
2000 3000 200
AKR-100®
4000
2000 4000 200
Table
28.4
250V
de Current Ratings
with EC Trip Device Only
Breaker
Frame
Short
Size
Circuit
Type
Amperes
kA
AK-25
600
25
AKR-30
BOO
25
AKR-50
2000
50
AKR-75
4000
75
AKR-100
6000
100
With
With
Short-Time Trip
Breaker
In stan· Characteristic
®
Type
neous
Trip
2C
2B
2A
AK-25
40
175 200 250
AKR-30
100
175 200 250
AKR-50
200
350 400 500
2CC 2BB
2AA
AKR-75
AKR-100
2000
2000 2000 2000
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