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Type SF Dual, Round & Oval, Oil-Filled Motor Run Capacitors
Type SF dual rated oil filled motor run capacitors made
Metallized Polypropylene
with self-healing metallized polypropylene film are com-
monly used in air conditioning, motors and compressor
applications. The dual ratings in a single can provide
two capacitors - one may be used as a fan capacitor and
the other as a compressor or motor run capacitor. Three
terminals allow one terminal to act as a common while
the other two are connected to the individual capacitors.
The service life objective for the 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 tempera-
ture and voltage by using the curves below.
Highlights
•
•
•
•
•
•
Fault current protection up to 10,000 A
Low energy consumption — <0.1% DF
Self healing
UL recognized under E71645
Meets EIA Standard EIA-456-A
60,000 hours life
Complies with the EU Directive
2002/95/EC requirement
restricting the use of Lead (Pb),
Mercury (Hg), Cadmium (Cd),
Hexavalent chromium (Cr(VI)),
PolyBrominated Biphenyls (PBB)
and PolyBrominated Diphenyl
Ethers (PBDE).
Specifications
Capacitance Range:
15–5 µF to 80–10 µF
Voltage Range:
Capacitance Tolerance
Temperature Range:
370 Vac and 440 Vac
±10% standard (±6% and ±3% available)
–40 ºC to +70 ºC
Life vs. Temperature
Life vs. Voltage
Capacitance vs. Temperature
100000
4
2
10000
1000
0
–2
100
10
–4
–6
20
–20
0
40 60
100
–40
80
125
50
75
100
25
% of Rated Temperature
Temperature °C
% of Rated Voltage
Part Numbering System
SF
C
37
S
15-5
Cap
K
291
B
-F
Type
Case
AC Volt
Case Material
Tol. ±%
Can Height
VAR
RoHS
Compliant
-F = Compliant
Blank = Not
Compliant
SF
C = 1 3/4" Oval
D = 2.0" Oval
37 = 370 Vac S = Steel
15-5 = 15-5 µF L = ±3%
30-20 = 30-20 µF H = ±6%
50-7.5 = 50-7.5 µF K = ±10%
300 = 3.00" E = Dual 2,3,4 70 ºC
388 = 3.88" Z = Other
400 = 4.00"
44 = 440 Vac T = Aluminum
X = Other
w/steel cover
S = 2.0" Round
T = 2 1/2" Round
A = All Aluminum
Z = +10 –5% 475 = 4.75"
X = Special
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 • www.cde.com