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Cathodic Protection Rectifiers, Specialty Series, Air Cooled
Pole mountable, air cooled cathodic protection rectifiers with swing out and removeable case for superior accessibility for routine maintenance & inspection.
Type "UT" Series
Type "SW" Series
The UT & SW Series air cooled cathodic protection rectifiers, are an alternative to Standard Line series air cooled cathodic protection rectifiers. The UT is the smallest model of the two series with a maximum of 400 watts, with all the same features as the larger SW series. Both Series rectifier features swing out and removable design case, which permits superior accessibility for routine maintenance and inspection. Limited to 1,600 watts of DC output, the simplified rectifier design reduces manufacturing costs and provides an economical rectifier suited for most cathodic protection applications.
Standard Features
Weatherproof to NEMA 3R Heavy duty
11-gauge hot dip galvanized cabinet with Stainless Steel Hardware
Stainless Steel, perforated screens
Components mounted on galvanized plate for easy removal
Heavy duty, draw-pull, stainless steel cabinet latch
Heavy duty transformer with 15% over-design for reserve capacity
Minimum 18-step voltage control taps
3/16” Grade XX, Phenolic front panel
Accessible front panel Total precision shunt
Magnetic AC Input circuit breaker
Magnetic AC Secondary Breakers (instead of fuses)
Hoyt, separate analog, 2-1/2” round, volt and amp meters
Silicon diodes protected by surge suppressors and current limiting
breakers
All electrical connection hardware is Nickel Plated and double-nutted or soldered
Multi-strand, high temperature, insulated flexible wiring
Terminal block for AC input wires
Safety shield panel supplied on all units over 65 Volts DC
Optional Features
A variety of AC voltage inputs single phase only
AC and/or DC High Energy lightning protection
Efficiency filter chokes
Communication filters
Meter switches
Power-on indicator light
DC circuit breakers
115 VAC convenience outlet
Powder coated cabinet finishes (White or Gray
Standard) Additional voltage control adjustments
Other options per request of customer
Dimensions
Dimensions (Inches)
Case Size
A
B
C
D
E
F
G
UT
8.75
12
19
17
11
16
20
SW1
12
15
22
18.5
12
20
25
SW2
14
17
25
22
14.5
22
28
SW3
14
20
28
25.5
14.5
25
31
Cabinet Wattage & Weight
Case Size
Maximum Watts
Maximum Weight
UT
400
80 lbs
SW1
800
110 lbs
SW2
1200
150 lbs
SW3
1600
200 lbs
Ordering Guide
Position #1: Model
S = SW Series Air Cooled Rectifier U = UT Series Air Cooled Rectifier
Position #2: Type
S = Standard Rectifier (Manual taps)
V = Variac control
Position #3: Cooling
A = Air Cooled
Position #4: Stack Type
I = Silicon (while other stack types are available, silicon is 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 EA = 115/460, 1 phase set for 115 vac G = 115, 1 phase only F = Specify
AB = 115/230, 1 phase set for 230 vac BB = 230/460, 1 phase set for 460 vac EB = 115/460, 1 phase set for 460 vac H = 230, 1 phase only
Position #8: Special Features
C = AC and DC arrestors D = DC arrestor E = AC arrestor F = Filter choke G = Communications filter H = Meter switches
M = DC breaker or fuse R = 115 VAC convenience outlet N = Powder coated cabinet (hot-dipped galvanized standard on most models) P = Additional voltage control link bar taps Q = Other, specify
Type "UT" Series
Type "SW" Series
The UT & SW Series air cooled cathodic protection rectifiers, are an alternative to Standard Line series air cooled cathodic protection rectifiers. The UT is the smallest model of the two series with a maximum of 400 watts, with all the same features as the larger SW series. Both Series rectifier features swing out and removable design case, which permits superior accessibility for routine maintenance and inspection. Limited to 1,600 watts of DC output, the simplified rectifier design reduces manufacturing costs and provides an economical rectifier suited for most cathodic protection applications.
Standard Features
Weatherproof to NEMA 3R Heavy duty
11-gauge hot dip galvanized cabinet with Stainless Steel Hardware
Stainless Steel, perforated screens
Components mounted on galvanized plate for easy removal
Heavy duty, draw-pull, stainless steel cabinet latch
Heavy duty transformer with 15% over-design for reserve capacity
Minimum 18-step voltage control taps
3/16” Grade XX, Phenolic front panel
Accessible front panel Total precision shunt
Magnetic AC Input circuit breaker
Magnetic AC Secondary Breakers (instead of fuses)
Hoyt, separate analog, 2-1/2” round, volt and amp meters
Silicon diodes protected by surge suppressors and current limiting
breakers
All electrical connection hardware is Nickel Plated and double-nutted or soldered
Multi-strand, high temperature, insulated flexible wiring
Terminal block for AC input wires
Safety shield panel supplied on all units over 65 Volts DC
Optional Features
A variety of AC voltage inputs single phase only
AC and/or DC High Energy lightning protection
Efficiency filter chokes
Communication filters
Meter switches
Power-on indicator light
DC circuit breakers
115 VAC convenience outlet
Powder coated cabinet finishes (White or Gray
Standard) Additional voltage control adjustments
Other options per request of customer
Dimensions
Dimensions (Inches)
Case Size
A
B
C
D
E
F
G
UT
8.75
12
19
17
11
16
20
SW1
12
15
22
18.5
12
20
25
SW2
14
17
25
22
14.5
22
28
SW3
14
20
28
25.5
14.5
25
31
Cabinet Wattage & Weight
Case Size
Maximum Watts
Maximum Weight
UT
400
80 lbs
SW1
800
110 lbs
SW2
1200
150 lbs
SW3
1600
200 lbs
Ordering Guide
Position #1: Model
S = SW Series Air Cooled Rectifier U = UT Series Air Cooled Rectifier
Position #2: Type
S = Standard Rectifier (Manual taps)
V = Variac control
Position #3: Cooling
A = Air Cooled
Position #4: Stack Type
I = Silicon (while other stack types are available, silicon is 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 EA = 115/460, 1 phase set for 115 vac G = 115, 1 phase only F = Specify
AB = 115/230, 1 phase set for 230 vac BB = 230/460, 1 phase set for 460 vac EB = 115/460, 1 phase set for 460 vac H = 230, 1 phase only
Position #8: Special Features
C = AC and DC arrestors D = DC arrestor E = AC arrestor F = Filter choke G = Communications filter H = Meter switches
M = DC breaker or fuse R = 115 VAC convenience outlet N = Powder coated cabinet (hot-dipped galvanized standard on most models) P = Additional voltage control link bar taps Q = Other, specify
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