EPCOS AG 2007. Reproduction, publication and dissemination of this data sheet, enclosures hereto and the information
contained therein without EPCOS' prior express consent is prohibited.
Film capacitors – Capacitors for Power Factor Correction
B25667B5117A175
PhaseCap capacitors – MKK-AC series
MKK440-I-6.9-01/MKK525-I-10-01
Construction
Dielectric: Polypropylene film
Gas-impregnated / dry type
Single winding
Wave cut
Extruded round aluminum can with stud
Provided with ceramic discharge module
Triple safety system
Features
Single-phase
Self-healing technology
Naturally air cooled (or forced air cooling)
Indoor mounting
Typical applications
For Power Factor Correction
Terminals
SIGUT terminals
Mounting parts
Threaded stud at bottom of can
(
max. torque = 10 Nm for M12)
Dimensional drawing
Technical data and specifications
Characteristics
Rated capacitance C
R
Tolerance
Rated voltage V
R
Rated frequency f
R
Output
Rated current I
R
tan
δ
(dielectric)
MKK440-I-6.9-01
1 × 116 µF
–5/+10%
440 V AC
50 Hz
6.9 kvar
16 A
0.2 W/kvar
60 Hz
8.3 kvar
19 A
0.2 W/kvar
MKK525-I-10-01
1 × 116 µF
–5/+10%
525 V AC
50 Hz
10 kvar
19 A
0.2 W/kvar
60 Hz
12 kvar
23 A
0.2 W/kvar
FK PFC R&D/CA
Page 2 of 3
September 2007
Film capacitors – Capacitors for Power Factor Correction
B25667B5117A175
PhaseCap capacitors – MKK-AC series
MKK440-I-6.9-01/MKK525-I-10-01
Maximum ratings
V
max
(up to 8 h daily)
V
max
(up to 1 min)
I
max
I
S
580 V AC
680 V AC
1.3 · I
R
(A)
200 · I
R
(A)
Label design
Test data
V
TT
V
TC
tan
δ
(50 Hz)
1,150 V AC / 50 Hz during 10 s
3,000 V AC / 50 Hz during 10 s
≤
0.5 W/kVAr
Climatic category / –40/D
T
min
T
max
Humidity
Maximum altitude
–40 ºC
+55 ºC
Av. rel. < 95%
4,000 m
Mean life expectancy
t
LD
Up to 115,000 hours
Max. 5000 switchings per year to IEC 60831
Design data
Dimensions (∅ × l)
Weight approx
Impregnation
Fixing
Max. torque (Al can stud)
Mounting position
121 × 164 mm
1.3 kg
Dry, inert gas
Threaded bolt M12
10 Nm
Any mounting position
possible. See
“Maintenance and
Installation Manual” for
further details.
FK PFC R&D/CA
Page 3 of 3
September 2007
Film capacitors – Capacitors for Power Factor Correction
B25667B5117A175
PhaseCap capacitors – MKK-AC series
MKK440-I-6.9-01/MKK525-I-10-01
Terminals
Degree of protection
Max. torque
Terminal cross section
Maximum terminal current
Creepage distance
Clearance
Isolated terminals, IP20
1.2 Nm
16 mm
2
(5 AWG)
50 A
12.7 mm
9.6 mm
Safety
Mechanical safety
Max. short circuit current
Discharge resistor time
Overpressure disconnector
(AFC: 10 kA)
≤
1 min (75 V)
Reference standards
IEC 60831-1/2, UL 810-5th edition
Certification: cUL file E238746
U
Please read information about PFC capacitors and cautions as well as installation and maintenance instructions (Power Factor Correction Product Profile,
actual version, and Installation and Maintenance Instructions for PFC-capacitors, available in the Internet) to ensure optimum performance and prevent products
from failing, and in worst case, bursting and fire.
Information given in the PFC-product profile and values given in the data sheet reflect typical specifications. You are kindly requested to approve our product
specifications or request our approval for your specification before ordering.
EPCOS AG 2007. All Rights reserved. Reproduction, publication and dissemination of this data sheet, enclosures hereto and the information contained
therein without EPCOS' prior express consent is prohibited. The information contained in this data sheet describes the type of component and shall not be
considered as guaranteed characteristics. Purchase orders are subject to the General Conditions for the Supply of Products and Services of the Electrical and
Electronics Industry recommended by the ZVEI (German Electrical and Electronic Manufacturers' Association), unless otherwise agreed.
FK PFC R&D/CA
Page 4 of 3
September 2007
Film capacitors – Capacitors for Power Factor Correction
B25667B5117A175
PhaseCap capacitors – MKK-AC series
MKK440-I-6.9-01/MKK525-I-10-01
Cautions and warnings
In case of dents of more than 1 mm depth or any other mechanical damage, capacitors must not
be used at all.
This applies also in cases of oil leakages.
To ensure the full functionality of the overpressure disconnector, elastic elements must not be
hindered and a minimum space of 12 mm has to be kept above each capacitor.
Do not handle the capacitor before it is discharged.
Resonance cases must be avoided by appropriate application design in any case.
Handle capacitors carefully, because they may still be charged even after disconnection due to
faulty discharging devices.
Protect the capacitor properly against over current and short circuit.
Failure to follow cautions may result, worst case, in premature failures, bursting and fire.
Discharging
Capacitors must be discharged to a maximum of 10% of rated voltage before they are switched in
again. This prevents an electric impulse discharge in the application, influences the capacitor’s
service life and protects against electric shock. The capacitor must be discharged to 75 V or less
within 3 minutes. There must be not any switch, fuse or any other disconnecting device in the circuit
between the power capacitor and the discharging device. MKV PFC capacitors B-series have a pre-
mounted ceramic discharge module; alternatively discharge reactors are available from EPCOS.
Discharge and short circuit capacitor before handling!
Service life expectancy
Electrical components do not have an unlimited service life expectancy; this applies to self-healing
capacitors too. The maximum service life expectancy may vary depending on the application the
capacitor is used in.
Safety
Electrical or mechanical misapplication of capacitors may be hazardous. Personal injury or property
damage may result from bursting of the capacitor or from expulsion of oil or melted material due to
mechanical disruption of the capacitor.
Ensure good, effective grounding for capacitor enclosures.
Provide means of disconnecting and insulating a faulty component/bank.
The terminals of capacitors, connected bus bars and cables as well as other devices may also be
energized.
Follow good engineering practice.
Thermal load/over-temperature
After installation of the capacitor it is necessary to verify that maximum hot-spot temperature is not
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