
P O W E R T R A N S F O R M E R S
White-Rodgers Emerson Electric Co.
9797 Reavis Road St. Louis, MO 63123
(314) 865-8799 Fax (314) 638-2400
S chematic Diagram
for P CA S eries
Typical D.C. Circuit
Dual S econdaries
STANCOR
PART
DIMENSIONS-INCHES
Case
W
D
Output from Two Secondary Windings
Individually
Parallel
Mounting
MW
Weight
(lbs.)
Agency
Certification
Sec. NUMBER
Style
V.A. Cap.
Series
H
MD
A
PCA-3
NV
30
33.0 C.T. @ 0.21A
18.0 C.T. @ 1.25A
34.0 C.T. @ 0.35A
19.0 C.T. @ 2.50A
-
-
-
-
-
-
-
-
3.13
2.50
2.63
2.00
2.38
3.0
-
PCA-4
NV
60
3.44
2.81
2.88
2.25
2.38
3.9
-
For outline drawings refer to page 62.
D.C. Output R atings
STANCOR
PART
Input
Filter
Cap
Input
Filter
Cap.
Secondary No. 1
FWB Rectifier
Secondary No. 2
FWCT Rectifier
Agency
Certification
Sec. NUMBER
PCA-3
Pos. 21V. D.C. at 150MA. D.C.
Neg. 21V. D.C. at 150MA. D.C.
Pos. 21V. D.C. at 250MA. D.C.
Neg. 21V. D.C. at 250MA. D.C.
500MF
500MF
500MF
500MF
8.5V. D.C. at 2.0 Amps. D.C.
1000MF
-
3000MF
-
-
PCA-4
8.0V. D.C. at 4.0 Amps. D.C.
-
S ingle P rimary, Dual S econdary
Primaries 50/60 Hz.––Solder Lug Termination
Style S with lugs
Style NV with lugs
Style A with leads
Style NH with leads
STANCOR
PART
NUMBER
Insulation
Test
RMS Volts
DIMENSIONS-INCHES
Case
W
D
Secondary
Volts
Primary
Volts
Termination
Primary
Mounting
MW
Weight
(lbs.)
Agency
Certif.
Sec.
Style
Amps
Secondary
H
MD
B
P-8683
S
12.0 C.T.
12.0 C.T.
18.0 C.T.
18.0 C.T.
18.0 C.T.
18.0 C.T.
32.0 C.T.
15.5 C.T.
1.00
1.00
1.00
1.00
2.00
2.00
0.25
0.75
115
1500
Lugs
Lugs
2.75
3.13
2.13
2.81
-
1.7
-
P-8684*
NH
115
1500
Lugs
Lugs
2.56
3.00
2.50
2.50
2.00
2.3
-
P-8685*
NH
115
1500
Lugs
Lugs
3.25
3.81
3.13
3.13
2.25
4.5
-
P-8750
A
115
1500
Leads
Leads
2.25
3.75
1.88
3.13
-
1.3
-
For outline drawings refer to page 62.
# May be operated from a 400 Hz. source with no change in output ratings
* For 60 Hz. only
S ingle P rimary, Dual S econdary
All Primaries 50/60 Hz. #
PRI. 120V.
50/60 Hz
*VR-1 & VR-2 ARE SOLID STATE VOLTAGE REGULATORS
+18V.D.C
COM
-18V.D.C.
+5.6V.D.C.
-5.6V.D.C.
1
4 CT
5
2
3
7 CT
8
6
VR-2*
VR-1*
51