Siemens TYPE VBII Series Application Manual page 51

Safety switches
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Class L
Application: Current limiting
protection for service entrance
equipment, feeder circuits and
metering centers.
Rejection: Its unique dimensions
prevent the substitution of another
fuse.
8
/
5
8
21
/
/
32
5
8
1
/
1
8
3
/
13
2
7
/
16
16
2
Class L Blade Type 601-800A
Fuse Ratings
Class
Amperes
Volts
H
1-600A
250 and 600V NEC
or less AC
K5*
1-600A
250 and 600V Class H
or less AC
J
1-600A
600V or less
RK1
1/10-600A
600V or less
250V or less
RK5
1/10-600A
600V or less
(time
250V or less
delay)
T
1-1200A
300V AC
T
1-800A
600V AC
L
601-6000A
600V or less
* Class K5 fuses do not prohibit the use of Class H type fuses in a switch.
Class T
Application: It combines two highly
desirable features—a high degree of
current limition and a small physical
size. Panelboards, Switchboards and
Metering Center.
Rejection: Its unique dimension
prevents the substitution of another
fuse
5
/
8
8
1
/
2
2
/
3
/
7
8
16
15
/
16
7
/
8
4
5
/
16
Dimensions
Int. Ratings
10,000A
standards
100,000A
without rejection
Diff. from
200,000A
Class H
Class H with
200,000A
rejection
feature
Class H with
200,000A
rejection
feature
Diff. from
200,000A
Class H
Diff. from
200,000A
Class H
Bolt type
200,000A
10
3
/
4
1
13
/
32
5
/
16
3
/
1
/
1
5
/
4
8
8
3
13
/
3
15
/
16
32
2
7
/
8
Class L Blade Type 801-1200A
I2t, Ip
Less than
General purpose
10,000A available
circuits
I
2
t - RK5 up to 100A
Feeder
I
- RK5 up to 100A
circuits
p
I
2
t - Low
Main & feeder
I
- Low
circuits
p
I
2
t - Slightly>J
Main & feeder
I
- Slightly>J
circuits(motor load
p
small percent)
I
2
t - >RK-1
Motor starting
I
- RK-1
currents
p
I
2
t - <J
Main & feeder
I
- <J
circuits
p
I
2
t - =J
Main & feeder
I
- =J
circuits
p
I
2
t - Low
Main & feeder
I
- Low
circuits
p
1
3
/
5
/
8
8
1
/
1
/
1
3
/
2
8
8
3
/
3
/
15
8
32
3
/
4
5
3
/
8
Circuits
51

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