CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 • www.cde.com

Part Numbering System

Metallized Polypropylene

Type SF dual rated oil filled motor run capacitors made

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 ter-

minals 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

Life vs. Temperature

Life vs. Voltage

Capacitance vs. Temperature

Temperature °C

% of Rated Voltage

% of Rated Temperature

100

60

40

20

0

–20

–40

80

4

2

0

–2

–4

–6

10

100

1000

10000

100000

25

50

75

125

100

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

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Specifications

Capacitance Range:

Voltage Range:

Capacitance Tolerance

Temperature Range:

15–5 µF to 80–10 µF

370 Vac and 440 Vac

±10% standard (±6% and ±3% available)

–40 ºC to +70 ºC

SF

C

37

S

15-5

K

291

B

-F

Type

Case

AC Volt

Case Material

Cap

Tol. ±%

Can Height

VAR

RoHS

SF

C = 1 3/4" Oval

37 = 370 Vac S = Steel

15-5 = 15-5 µF

L = ±3%

300 = 3.00" E = Dual 2,3,4 70 ºC

Compliant

D = 2.0" Oval

44 = 440 Vac T = Aluminum

30-20 = 30-20 µF H = ±6%

388 = 3.88" Z = Other

-F = Compliant

X = Other

w/steel cover

50-7.5 = 50-7.5 µF K = ±10%

400 = 4.00"

Blank = Not

S = 2.0" Round

A = All Aluminum

Z = +10 –5% 475 = 4.75"

Compliant

T = 2 1/2" Round

X = Special

Complies with the EU Directive

2 0 0 2 / 9 5 / E C r e q u i r e m e n t

restricting the use of Lead (Pb),

Mercury (Hg), Cadmium (Cd),

Hexavalent chromium (Cr(VI)),

PolyBrominated Biphenyls (PBB)

and PolyBrominated Diphenyl

Ethers (PBDE).