MKV AC Capacitors
General AC Applications
B 25 832
Compact design
Long-term stability and reliability
For commutation in the low-
frequency range
Construction
q
q
q
q
q
q
q
Self-healing
Plastic dielectric
Oil-impregnated tubular windings (no PCB)
Metal-sprayed end faces ensure reliable contacting
Cylindrical aluminum case
Ceramic or plastic lead-throughs
Mounting bolts M8 or M12
Terminals
q
Tab connectors 6,3 mm
q
Dual tab connectors 6,3 mm
Mounting parts
q
If the vibration stress is
≤
5
g
and the capacitors
are
≤
60 mm in diameter, the bolt is used for mounting.
q
In case of a vibration stress > 5
g
as well as for larger-sized
capacitors refer to chapter “Mounting parts”.
Grounding
q
Mounting bolts for grounding in accordance with VDE 0100
q
Grounding identification in accordance with DIN 40 011
Overpressure disconnector (mechanical)
When the overpressure disconnector responds,
the capacitor extends by up to 8 mm in the length.
So leave sufficient space above the terminals when mounting the capacitor.
Individual data sheets
Individual capacitors of this series are specified in detail
(incl. thermal data)
on pages 118 … 127.
Upon request, these data sheets are available for each capacitor type.
110
Siemens Matsushita Components
B 25 832
General AC Applications
Technical data
Standards
IEC 1071-1/2
EN 61071-1/2
VDE 0560 part 120 and 121
2 · 10
–4
Dielectric dissipation factor
Max. repetitive rate
of voltage rise
Max. non-repetitive rate
of voltage rise
Climatic data:
Min. operating temperature
Max. operating temperature
Average relative humidity
Failure quota
Load duration
Storage temperature limit
IEC climatic category
(IEC 68-1 and 2)
Test A, cold
Test B, dry heat
Test Ca, damp heat, steady state
Values after test Ca:
Capacitance change
tan
δ
0
(du/dt)
max
(du/dt)
s
Θ
min
Θ
max
α
FQ(co)
t
LD(co)
Θ
stg
î
---
-
C
I
S
---
-
C
– 25
°C
+ 85
°C
≤
75 %
1000 failures per 10
9
component hours
30 000 h
– 55/+ 85
°C
25/085/56
– 25
°C
+ 85
°C
56 days/40
°C/93
% rel. humidity
∆
C
/
C
≤
1%
C
N
Insulation resistance
Self-discharge time constant
τ
=
Dissipation factor change
Test data:
AC test voltage
between terminals
between terminals and case
Insulation resistance
Self-discharge time constant
τ
=
Dissipation factor
R
is
R
is
·
C
∆tan δ
≤
1
µF
> 1
µF
≤
3 · 10
–4
Dual tab
connector 6,3
≥
3000 MΩ
≥
3000 s
Tab
connector 6,3
≥
1000 MΩ
≥
1000 s
U
TT
U
TC
R
is
R
is
·
C
tan
δ
1,25 ·
U
N
, 50 Hz, 10 s (or DC 1,75 ·
U
N
, 10 s)
2 ·
U
i
+ 1000 V, 50 Hz, 10 s
≤
1
µF: ≥
3000 MΩ
> 1
µF: ≥
3000 s
≤
3 . 10
–4
Siemens Matsushita Components
111
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