Type SF Motor-Run and Power Supply Capacitors
Oil Filled/Impregnated, AC Rated, Metallized Polypropylene Capacitors
Type SF, AC rated metallized polypropylene capacitors pro-
vide starting torque and power factor correction for split
phase motors typically used in refrigeration and air condi-
tioning motor-run applications. Type SF also may be used
to provide noise suppression, voltage regulation and line
current reduction in power supply applications.
Highlights
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Self healing
Fault Current Protection up to 10,000 amps AFC
Low energy consumption
4 - tine, 1/4" quick connect lug terminals are standard
Meets EIA Standard EIA-456-A
UL recognized File Number E71645
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CSA File Number 223507
Specifications
Capacitance Range:
Voltage Range:
5.0 µF to 120.0 µF
240 Vac to 660 Vac
Capacitance Tolerance:
Temperature Range:
Dissipation Factor:
±10% standard, ± 6% and ±3% available
–40 ºC to 70 ºC standard, 90 º C available
<0.1%
Service Life Objective
Capacitance vs. Temperature
The Capacitance vs. Temperature curve may be used to
determine the capacitance change as a function of
temperature. Capacitance varies by no more than ±3 % over
the operating temperature range.
The service life objective for this series is 60,000 hours of
operating life with a 94% survival rate when operated at full
voltage, 60 Hz, and rated ambient temperature. AC
capacitors are frequently used at voltages and ambient
temperatures other than rated conditions. Service life may
be estimated under specific conditions of temperature and
voltage by using the curves as shown below and to the right.
Capacitance vs. Temperature
4
2
0
–2
Life vs. Temperature
–4
–6
100000
10000
0
–40
–20
100
80
20
40
60
Temperature °C
Life vs. Voltage
1000
100
10
0
75
100
125
25
50
% of Rated Temperature
% of Rated Voltage
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