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DC Power Supplies & Cathodic
Protection Rectifiers >
Rectifiers for Cathodic Protection
Oil
Cooled & Explosion Proof
Cathodic
Protection
Rectifiers
by Universal Rectifier, Inc.
Heavy-duty,
rugged rectifiers for operation under severe conditions
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| Rectifier
cabinet |
Rectifier
cabinet internals. |
Farwest oil cooled cathodic protection rectifiers,
manufactured by Universal Rectifiers, Inc., are
recognized as industry leading in quality, workmanship
and service life. Many years of field-proven service
have led to the superior design of these rectifiers.
Conservative equipment ratings, controlled manufacturing
techniques, plus many extra features ensure long and
trouble-free operation.
Typical cathodic
protection applications for the oil cooled rectifier
line include severe environmental conditions due to high
humidity, dust, or other situations that would shorten
the life of a standard air cooled rectifier.
Explosion proof models
are used for Class 1, Group D locations and comply with
U.L. Standard 698. While similar to the standard oil
cooled rectifiers, the explosion proof units are fitted
with special hazardous area fittings to eliminate
possibility of an ignition source.
Oil
cooled cathodic protection rectifier purchasing
specification |
 Standard Rectifier Features
- Industry leading
three-year limited warranty.
- Heavy duty 11 gauge
hot dipped galvanized cabinet with hinged top lid
with top brace.
- External cabinet
fins for added strength and cooling.
- Quick release, heavy
duty stainless steel latches.
- Separate instrument
compartment with hinged door.
- Separate lift-out
component racks for the transformer and rectifier
stack.
- Heavy duty
transformer with 15% overdesign for reserve capacity.
- 18-step voltage
control link bar taps.
- Quick-change heavy
duty knobs for changing tap link bars on units under
140 amps.
- Magnetic AC circuit
breaker.
- Hoyt model 17-3 volt
and amp meters.
- Avalanche silicon
diodes with a minimum 1,200 PIV.
- Primarily forward
polarity diodes.
- Diode protection by
surge suppressors plus breakers or fuses.
- Electrical
connections double-nutted or soldered.
- Multi-strand,
flexible wiring with TEW insulation rated at 105
degrees C and 600 volts.
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Optional Rectifier Features
- A variety of AC
voltage inputs.
- AC and/or DC
lightning protection.
- Efficiency filter
chokes.
- Communication
filters.
- Meter switches.
- DC circuit breakers
or fuses.
- Additional voltage
control link bar taps.
- Alternate output
control (constant current, constant voltage,
constant potential, and constant potential with IR
drop free feature.
- Other options per
request of customer.
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Typical Cabinet Dimensions |
Case
Size |
Oil
Gal
Capacity |
Case
Dimensions (inches) |
Knockout
Detail |
| A |
B |
C |
D |
E |
F |
A |
B |
C |
D |
| MAO |
20 |
18 |
15 |
24.5 |
24 |
26.75 |
17.75 |
3 |
1.75 |
4 |
4.25 |
| AO |
55 |
30 |
18.25 |
34 |
24 |
39.75 |
22 |
3 |
1.75 |
4 |
4.25 |
| BO |
110 |
36 |
21 |
46 |
24 |
46 |
25 |
3 |
3 |
4.5 |
4.25 |
| CO |
170 |
48 |
21 |
52 |
24 |
58.25 |
25 |
3 |
3 |
4.5 |
4.25 |
| DO |
213 |
60 |
21 |
52 |
24 |
70.25 |
25 |
3 |
3 |
4.5 |
4.25 |
| EO |
300 |
72 |
21 |
52 |
24 |
82.25 |
25 |
3 |
3 |
4.5 |
4.25 |
| FO |
465 |
84 |
30.5 |
52.5 |
24 |
93.5 |
34 |
3 |
3 |
4.5 |
4.25 |
| GO |
600 |
84 |
30.5 |
64.5 |
24 |
93.5 |
34 |
3 |
3 |
4.5 |
5.25 |
Case
Size |
Single Phase |
Three Phase |
Maximum
DC Watts |
Shipping Weight |
Maximum
DC Watts |
Shipping Weight |
| MAO |
500 |
200 lbs |
- |
- |
| AO |
501-1900 |
450 lbs |
0-3600 |
518 lbs |
| BO |
1901-3400 |
594 lbs |
3601-6400 |
660 lbs |
| CO |
3401-4250 |
731 lbs |
6401-8000 |
860 lbs |
| DO |
4251-5300 |
935 lbs |
8001-10000 |
1100 lbs |
| EO |
5301-6400 |
1020 lbs |
10001-12000 |
1200 lbs |
| FO |
6401-8500 |
1200 lbs |
12001-16000 |
1400 lbs |
| GO |
8502-10600 |
1400 lbs |
16001-20000 |
1600 lbs |
Universal Rectifier Ordering Guide
Configure an 8-position model number like
OSOI 50-30 CBC
Positions from left to right are as follows:
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Position #1: Model |
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O = Standard line, Oil immersed |
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Position #2: Type |
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S
= Standard Rectifier (Manual taps)
C = Constant Current (Reactor style)
D = Constant Current (Solid state)
E = Constant Voltage (Solid state) |
P
= Constant potential (solid state)
I = Constant potential IR free (solid state)
M = Multiple modes (solid state)
V = Variac control |
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Position #3: Cooling |
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O = Oil Immersed |
X
= Oil immersed, explosion-proof |
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Position #4: Stack Type |
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I = Silicon (while other stack types are available, silicon
is recommended) |
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Position #5: DC Volts |
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List
Maximum DC Voltage Desired |
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Position
#6: DC Amps |
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List Maximum DC
Amperage Desired |
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Position
#7: AC Input |
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A =
115/230, single-phase
B = 230/460, single-phase
C = 230/460 three-phase |
D = 208,
three-phase
E = 115/480, single-phase
F = Specify |
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Position
#8: Special Features |
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A = Dual
input wired for low voltage
B = Dual input wired for high voltage
C = AC and DC arrestors
D = DC arrestor
E = AC arrestor
F = Filter choke
G = Communications filter
H = Meter switches
J = Power On indicator light |
K = DC
failure warning light
M = DC breaker or fuse
R = 115 VAC convenience outlet
N = Powder-coated cabinet over hot-dipped
galvanized steel
O = Aluminum or stainless steel cabinet
P = Additional voltage control link bar taps
S = Multiple circuits (qty.)
Q = Other, specify |
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