Siemens 8DJH User Manual

500-8067.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DJH • Revision 05 29/121
Description
8.4 Vacuum circuit-breaker
Switching capacity and classification of switching devices
Vacuum circuit-breaker with switching capacity according to
IEC/EN 62271-100 / VDE 0671-100.
Type 2 with three-position disconnector
Operating times, contacts The time indications in the following table refer to the application of the switchgear in
accordance with IEC 60721-3-3 Class 3K4. If the switchgear is operated beyond this range, the
indicated times may deviate.
Rated voltage U
r
kV 7.2 12 15 17.5 24
Rated normal current of feeders l
r
A 250 or 630
50 Hz Rated short-time withstand
current I
k
Switchgear with t
k
= 1 s I
k
(
th
)
up to kA 25
20/21
1
1
Design option
Switchgear with t
k
= 3 s
I
k
(
th
)
up to kA
20/21
1
Rated peak withstand current I
p
up to kA 63
50/52.5
1
Rated short-circuit breaking current I
sc
up to kA 25
20/21
1
Rated short-circuit making current I
ma
up to kA 63
50/52.5
1
60 Hz Rated short-time withstand
current I
k
Switchgear with t
k
= 1 s I
k
(
th
)
up to kA 25
20/21
1
Switchgear with t
k
= 3 s I
k
(
th
)
up to kA
20/21
1
Rated peak withstand current I
p
up to kA 65
52/55
1
Rated short-circuit breaking current I
sc
up to kA 25
20/21
1
Rated short-circuit making current I
ma
up to kA 65
52/55
1
Number of operating cycles for disconnector, mechanical 1,000
Number of operating cycles for earthing switch, mechanical 1,000
Number of operating cycles for circuit-breaker, mechanical 2,000
Classification of circuit-breaker M1, E2, C1, S1
Classification of disconnector M0
Classification of make-proof earthing switch E2
Rated operating sequence O - 3 min - CO - 3 min - CO
Number of short-circuit breaking operations n 6 or 20
Designation Component (item designation) Unit Time
Type 2
Closing time Closing solenoid (-Y9) ms < 30
Opening time 1st shunt release (-Y1) ms < 35
Additional
release
2nd shunt release (-Y3) ms < 35
C.t.-operated release (-Y6) ms < 35
Undervoltage release (-Y7) ms < 35
Low-energy release (-Y6) ms < 35
Arcing time ms < 15
Break time 1st shunt release (-Y1) ms < 50
Additional
release
2nd shunt release (-Y3) ms < 50
C.t.-operated release (-Y6) ms < 50
Undervoltage release (-Y7) ms < 50
Low-energy release (-Y6) ms < 50
Charging time (motor) s < 15
Dead time s 180
Close-open contact
time
1st shunt release (-Y1) ms < 65
Additional
release
2nd shunt release (-Y3) ms < 65
C.t.-operated release (-Y6) ms < 65
Undervoltage release (-Y7) ms < 65
Low-energy release (-Y6) ms < 65
Minimum command duration
1
CLOSED Closing solenoid (-Y9) ms 40

Siemens 8DJH Specifications

General

Brand	Siemens
Model	8DJH
Category	Switch
Language	English