Film capacitors – Capacitors for Power Factor Correction
WindCap capacitors
B25668A6836A375
MKK690-D-12.5-11
Terminals
Degree of protection
Max. torque
Isolated terminals, IP20
1.2 Nm
Terminal cross section
Maximum terminal current
Creepage distance
Clearance
16 mm2 (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
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 on
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. Discharge and short circuit capacitor before
handling!
FK PFC R&D
July 2007
Page 4 of 8
EPCOS [ EPCOS ]
