CATHODIC
PROTECTION
I RECTIFIERS
• Air Cooled
• Oil Immersed
• Explosion Proof
• Special Purpose
• Custom Designs
• C.SA, E.T.L. and U.L.
Approved Models
Available
A Hometown American Product
Universal Rectifiers, Inc.
1613 Cottonwood Rd.
P.O. Box 1640
Rosenberg, Texas 77471
(281) 342·8471
FAX (281) 342·0292
THE "STANDARD" LINE
The Universal Standard Line Cathodic Protection
rectifiers are recognized as the leader in quality and
workmanship. Many years of field proven service
has led to the design of our rectifiers. Conservative
ratings, controlled manufacturing techniques, plus
many extra features insure long and trouble free
operation.
Standard features found in the "Standard Line"
Series
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4
11 gauge hot dipped galvanized case.
Front & side opening doors.
Heavy-duty draw-pull latch.
Slide out racks
Heavy duty transformer with 15% over design
for reserve capacity.
18 step voltage control taps.
Engraved bakelite panel.
Quick change heavy duty knobs for changing
tap link bars.
Minimum 5/16" diameter soldered tap changing
studs.
Accessible shunt, plainly marked.
Heinemann magnetic circuit breaker.
Hoyt Model 17-3 Meters.
Tri-amp high density selenium.
Microsemi avalanche sillicon diodes protected
by surge suppressors and current limiting fuses.
All electrical connections double nutted or
soldered.
Multi-strand high temperature extra flexible wire.
Terminal block for AC input wires.
Primary tap change panel for dual input
voltages.
Dead front panel supplied on all units over 60
volts D.C.
H --
r---+----.......
TI
G
...!..-----I+
REAR VIEW
C
CONDUIT KNOCKOUTS
-J---
PERFORATED METAL
B
C
DIMENSIONS - INCHES
0
E
F G
H
I
A
14 12
20
3
B
17 15
e
CASE
SIZE A
J
K
L
15 20 26 ' /. 3 7'12
6
7'12 51/ 2
24 3 1/ 2 18 23
32
3
9
8
10 8 1/ 1
22 21
24 3 1/ 2 24 28
32
3
9
10
15 14
0
28 22
23 3 1/ 2 25 34
32
3
9
12 21
E
34 28
27
35
3
9
10
5
33 44
129'/11
15
20
5
The Universal oil cooled rectifier is a heavy duty rugged
rectifier designed to operate under severe conditions.
The cabinet is constructed of minimum 11 gauge
material reinforced with external fins for added strength
and cooling. All units are equipped with hinged lid, lid
brace and heavy duty draw pull latches as standard
features.
Explosion proof models for Class 1, Group 0
environments comply to U.L. Standard 698.
6
/,
~
E
1,~
/~
D"I ~0
L:
o
~~/
I
c
~'
/1~/1
~ r
134"
~
//
~
v
~
--j
4"
.........
(BOTTOM VIEW)
--
C
EXPLOSION PROOF
KNOCKOUT DETAIL
V"/-'
0
-0',1-
STANDARD KNOCKOUT
DETAIL
'A
/.
B
F~
(BOTTOM VIEW)
SA-IZ-S:-.-~':-:-~-~-;:-S"""T""-A--B-C-A-~-E-D-I~-N-S-I-~-N-S-F--G---'
A /rC
....
~ ~RAIN ~
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3
3
PIFr-MA:_0-t_ _
20_--t_1_8-+-_1_5-+2_4_1/_2+-2_4-+2_6_/_4+-17_/_4+-_8---1
COLLAR W/PLU(
AO
55
30
BO
110
36
CASE
DIMENSIONS
SIZE t-A-y--B--=.:.,::.:.C::..:..:.;:.....D~
CO
170
MAO
3
DO
AO
3
BO,CO
DO,EO
FO, GO
34
24
393/4
22
8
21
46
24
46
25
10
48
21
52
24
58 1/4
25
10
213
60
21
52
24
701/4
25
10
EO
300
72
21
52
24
82\/4
25
10
3
FO
465
3
GO
600
EXPLOSION PROOF KNOCKOUTS
7
The Universal "SW" Series rectifier is an
alternate to the standard line. The "SW" rectifier
features lift-off design case which permits
unlimited accessibility for routine maintenance
and inspection. Simplified design reduces
manufacturing costs which provides an
economical rectifier ideally suited to most
applications. Rectifier components mounted on
11 gauge chassis panel for easy removal.
DIMENSIONS
CASE
SIZE
B
C
D
4
12
19
17
SW1
12
15
22
18 1/ 2
SW2
14
17
25
SW3
14
20
28
UT
8
A
8
3
/
F
G
16
20
12
20
25
22
14 1/ 2
22
28
251/2
14 1/ 2
25
31
E
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UNDERWRITERS LABORATORY
APPROVED (U.L.)
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File E150287
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Thirty-five ratings available
manual tap adjust, automatic and solid
state
Suitable for service station, pipeline,
etc.
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BRIDGE DECK AND CONCRETE
REINFORCEMENT BAR CATHODIC
PROTECTION RECTIFIERS
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10
Stepless, precise output adjustment
Constant current, constant voltage models
Patent pending IR drop free models
Multiple output circuits
with individual control
Many options available
Any style enclosure available
Custom designs to suit
any requirement
Universal is a unique, versatile manufacturing
facility. Not governed by mass production
techniques, our facilities are flexible to meet all
demands. We welcome unusual designs.
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Constant Current
Automatic potential control
Multi-units in common case
Test rectifiers
Export units
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MODELES
THE MODEL ES RECTIFIER IS A
VERSITILE, COMPACT, LIGHTWEIGHT
RELIABLE UNIT FOR ANY LOW
POWER REQUIREMENTS.
STANDARD FEATURES:
• Circuit breaker
• Ammeter
• 3 coarse and 6 fine taps
• Heavy gauge aluminum case
• Sillicon rectifying elemnets
• AC and DC lightning protection
• AC input terminal block
• Unique opening cabinet for total
accessibility
• 200 Watts maximum DC output
• Tapless control available
MODEL ES-II
• Same overall dimensions
as ES-I, except 2.5" wider
• Voltmeter standard
• Elapsed time indicator available
• D.C. failure lights available
• Tapless control available
STANDARD SIZES
6V-5A
6V-IOA
l2V-5A
12V-IOA
20V-5A
20V-IOA
30V-5A
40V-5A
120Y.A.C.SINGLEPHASEINPUT
OTHER RATINGS AVAILABLE
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Universal stocks a complete line of industry
standard components for replacement purposes.
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Transformers
Silicon stacks
Selenium stacks
Meters
Circuit Breakers
Fuses
Shunts
Solid State Relays
AC & DC arrestors
..
_..
l
1.
1 .... ,
eM
wi
13
A = Standard line, Air cooled
G = Gas Station
E = ES
P = Proline
a = Standard line, Oil immersed
MODEL
S = Swing Out Series
U = Utility Series
S=
C=
D=
E=
TYPE
P=
I =
M=
V=
Standard Rectifier (Manual taps)
Constant Current (Reactor style)
Constant Current (Solid state)
Constant Voltage (Solid state)
Constant Potential (Solid state)
Constant PotentiallR Free (Solid state)
Multiple Modes (Solid state)
Variac Control
A = Air Cooled
Oil Immersed
X = Oil Immersed, Explosion Proof
a=
COOLING
E = Selenium
I = Silicon
STACK TYPE
DC VOLTS
C = Selenium, Center Tap
S = Silicon, Center Tap
List Max. DC Volts Desired
DC AMPS
List Max. DC Amps Desired
ACINPUT
A = 1151230 10
B = 230/460 10
C = 230/460 30
D =208 30
E = 115/480 10
F = Specify
SPECIAL FEATURES
A
B
C
D
E
F
G
H
I
J
K
M
R
N
a
T
U
P
S
a
A
14
S
A
E
20
20
A
BCF
Dual input wired for low voltage
Dual input wired for high voltage
AC and DC arrestors
DC arrestor
AC arrestor
Filter choke
Communications filter
Meter switches
Base mounting
Pilot light
DC failure light
DC fuse
115 VAC convenience outlet
Painted cabinet (Galv. std. on most models)
Aluminum cabinet
Anodized aluminum cabinet
Anodized aluminum cabinet with clear coat
Other than standard taps
Multiple circuits (qty.)
Other, specify
EXAMPLE
This chart is useful for
calculating A.C. line current.
Multiply D.C. volts times the D.C.
amperes to obtain the figures
across the bottom of the chart
and follow a vertical line up until
the A.C. voltage and phase
selected is intersected. Read
across the chart for the A.C. line
current.
25
~.
"".
20
Example: A 24 volt 100 amp rectifier operating on 230 volts A.C.
three phase will draw 8 A.C.
Amperes.
5
For units less than 10';000 D.C.
watts, divide all figures by 10.
2000
3000
MAXIMUM ALLOWABLE CABINET WATTAGE
OIL IMMERSED
CASE SIZE
OIL CAPACITY
US GALLONS
7000
4000
5000
6000
D.C. Volts X D.C. Amps
8000
9000
MAXIMUM ALLOWABLE CABINET
WATTAGE - AIR COOLED
DC WATIS
SINGLE PHASE
DC WATIS
THREE PHASE
PMO
5
200
MAO
20
500
AO
55
501 to 1900
--o to 3600
80
110
1901 to 3400
3601 to 6400
CO
165
3401 to 4250
6401 to 8000
DO
213
4251 to 5300
8001 to 10000
EO
300
5301 to 6400
10001 to 12000
FO
465
6401 to 8500
12001 to 16000
GO
600
8501 to 10,600
16001 to 20000
SINGLE PHASE
THREE PHASE
A
1200
--
8
2800
2000
CASE SIZE
C
6000
6500
0
10000
12000
E
--
18000
AVERAGE SHIPPING WEIGHTS FOR RECTIFIERS BY CABINET SIZE
CASE
SIZE
PMO
MAO
AO
80
CO
DO
EO
FO
GO
SINGLE
PHASE
601bs.
200
450
594
731
935
1020
1200
1400
THREE
PHASE
N/A
N/A
518
660
860
1100
1200
1400
1600
CASE
SIZE
A
8
C
0
E
SINGLE
PHASE
1351bs.
185
300
410
525
THREE
PHASE
N/A
225
385
625
750
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Universal Rectifiers, Inc. manufactures cathodic protection junction boxes
to meet all needs. A full line catalog is available upon request.
STANDARD ENCLOSURES
AVAILABLE
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Galvanized steel
Painted steel
Stainless steel
Aluminum
Anodized Aluminum
Fiberglass
Non Metalic
TYPICAL
JUNCTION BOX
INSTALLATION
16
Universal Rectifiers, Inc.
1613 Cottonwood Rd.
P.O. Box 1640
Rosenberg, Texas 77471
(281) 342-8471
FAX (281) 342-0292