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Cathodic Protection Rectifiers, Oil Cooled, by Universal Rectifiers
Most Popular Oil-Cooled C.P. Rectifiers. Available with Many Options.
Description
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.
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.
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.
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
Cabinet Wattage & Weight
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:
Position #1: Model
O = Standard Line, Oil cooled
Position #2: Type
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 (Specify Modes Required) V = Variac control
Position #3: Cooling
O = Oil Cooled Standard
X = Oil Cooled (Hazardous Location) Class 1, Div. 2
Position #4: Stack Type
I = Silicon (recommended) E = Selenium
Position #5: DC Volts
List Maximum DC Voltage Desired
Position #6: DC Amps
List Maximum DC Amperage Desired
Position #7: AC Input
AA = 115/230, 1 phase set for 115 vac BA = 230/460, 1 phase set for 230 vac CA = 230/460, 3 phase set for 230 vac EA = 115/460, 1 phase set for 115 vac G = 115, 1 phase only H = 230, 1 phase only
AB = 115/230, 1 phase set for 230 vac BB = 230/460, 1 phase set for 460 vac CB = 230/460, 3 phase set for 460 vac EB = 115/460, 1 phase set for 460 vac D = 208, 3 phase F = Specify
Position #8: Special Features
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 (> 100 amps) or fuse P = Additional voltage control link bar taps R = 115 VAC convenience outlet S = Multiple circuits (qty.) W = RMU Terminal Strip Z = Other, specify
*= For Standard Oil Cooler Rectifiers Only
Description
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.
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.
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.
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
Cabinet Wattage & Weight
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:
Position #1: Model
O = Standard Line, Oil cooled
Position #2: Type
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 (Specify Modes Required) V = Variac control
Position #3: Cooling
O = Oil Cooled Standard
X = Oil Cooled (Hazardous Location) Class 1, Div. 2
Position #4: Stack Type
I = Silicon (recommended) E = Selenium
Position #5: DC Volts
List Maximum DC Voltage Desired
Position #6: DC Amps
List Maximum DC Amperage Desired
Position #7: AC Input
AA = 115/230, 1 phase set for 115 vac BA = 230/460, 1 phase set for 230 vac CA = 230/460, 3 phase set for 230 vac EA = 115/460, 1 phase set for 115 vac G = 115, 1 phase only H = 230, 1 phase only
AB = 115/230, 1 phase set for 230 vac BB = 230/460, 1 phase set for 460 vac CB = 230/460, 3 phase set for 460 vac EB = 115/460, 1 phase set for 460 vac D = 208, 3 phase F = Specify
Position #8: Special Features
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 (> 100 amps) or fuse P = Additional voltage control link bar taps R = 115 VAC convenience outlet S = Multiple circuits (qty.) W = RMU Terminal Strip Z = Other, specify
*= For Standard Oil Cooler Rectifiers Only
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Optional Rectifier Features