CATHODICPROTECTION

I RECTIFIERS• Air Cooled

• Oil Immersed

• Explosion Proof

• Special Purpose

• Custom Designs

• C.SA, E.T.L. and U.L.Approved ModelsAvailable

A Hometown American ProductUniversal Rectifiers, Inc.1613 Cottonwood Rd.P.O. Box 1640Rosenberg, Texas 77471(281) 342·8471FAX (281) 342·0292

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THE "STANDARD" LINE

The Universal Standard Line Cathodic Protectionrectifiers are recognized as the leader in quality andworkmanship. Many years of field proven servicehas led to the design of our rectifiers. Conservativeratings, controlled manufacturing techniques, plusmany extra features insure long and trouble freeoperation.

Standard features found in the "Standard Line"Series

• 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 protectedby surge suppressors and current limiting fuses.

• All electrical connections double nutted orsoldered.

• 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 --

C

Tr---+----....... I

G

...!..-----I+REAR VIEW

PERFORATED METAL

CASE DIMENSIONS - INCHESSIZE A B C 0 E F G H I J K L

A 14 12 20 3 15 20 26'/. 3 7'126 7'12 51/ 2

B 17 15 24 31/ 2 18 23 32 3 9 8 10 81/ 1

e 22 21 24 31/ 224 28 32 3 9 10 15 14

0 28 22 23 31/ 2 25 34 32 3 9 12 21 15

E 34 28 27 5 33 44 35 3 9 10 129'/11 20

CONDUIT KNOCKOUTS -J---

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The Universal oil cooled rectifier is a heavy duty ruggedrectifier designed to operate under severe conditions.The cabinet is constructed of minimum 11 gaugematerial reinforced with external fins for added strengthand cooling. All units are equipped with hinged lid, lidbrace and heavy duty draw pull latches as standardfeatures.

Explosion proof models for Class 1, Group 0environments comply to U.L. Standard 698.

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824 393/4 22

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EXPLOSION PROOFKNOCKOUT DETAIL

(BOTTOM VIEW)

STANDARD KNOCKOUTDETAIL

(BOTTOM VIEW)

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c /. V"/-'o ~ v 0 A /rC....SA-IZ-S:-.-~':-:-~-~-;:-S"""T""-A--B-C-A-~-E-D-I~-N-S-I-~-N-S-F--G---'

B~~RAIN ~ .. PIFr-MA:_0-t__20_--t_1_8-+-_1_5-+2_4_1/_2+-2_4-+2_6_3/_4+-17_

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COLLAR W/PLU( AO

EXPLOSION PROOF KNOCKOUTSBO 110 36 21 46 24 46 25 10

CASE DIMENSIONSSIZE t-A-y--B--=.:.,::.:.C::..:..:.;:.....D~ CO 170 48 21 52 24 581/4 25 10

MAO 3 DO 213 60 21 52 24 701/4 25 10

AO 3 EO 300 72 21 52 24 82\/4 25 10

BO,CO 3DO,EO

FO 465

FO, GO 3 GO 600

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The Universal "SW" Series rectifier is analternate to the standard line. The "SW" rectifierfeatures lift-off design case which permitsunlimited accessibility for routine maintenanceand inspection. Simplified design reducesmanufacturing costs which provides aneconomical rectifier ideally suited to mostapplications. Rectifier components mounted on11 gauge chassis panel for easy removal.

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CASEDIMENSIONS

SIZE A B C D E F G

UT 8 3/ 4 12 19 17 11 16 20

SW1 12 15 22 18 1/ 2 12 20 25

SW2 14 17 25 22 14 1/ 2 22 28

SW3 14 20 28 251/2 14 1/ 2 25 31

UNDERWRITERS LABORATORYAPPROVED (U.L.)• File E150287• Thirty-five ratings available• manual tap adjust, automatic and solid

state• Suitable for service station, pipeline,

etc.

BRIDGE DECK AND CONCRETEREINFORCEMENT BAR CATHODICPROTECTION RECTIFIERS

• 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

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Universal is a unique, versatile manufacturingfacility. Not governed by mass productiontechniques, our facilities are flexible to meet alldemands. We welcome unusual designs.

• Constant Current• Automatic potential control• Multi-units in common case• Test rectifiers• Export units

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STANDARD SIZES

120Y.A.C.SINGLEPHASEINPUTOTHER RATINGS AVAILABLE

20V-5A20V-IOA30V-5A40V-5A

6V-5A6V-IOAl2V-5A12V-IOA

MODEL ES-II• Same overall dimensions

as ES-I, except 2.5" wider• Voltmeter standard• Elapsed time indicator avail­

able• D.C. failure lights available• Tapless control available

MODELES

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

THE MODEL ES RECTIFIER IS AVERSITILE, COMPACT, LIGHTWEIGHTRELIABLE UNIT FOR ANY LOWPOWER REQUIREMENTS.

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Universal stocks a complete line of industrystandard components for replacement purposes.

• Transformers• Silicon stacks• Selenium stacks• Meters• Circuit Breakers• Fuses• Shunts• Solid State Relays• AC & DC arrestors

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MODEL

TYPE

A = Standard line, Air cooleda = Standard line, Oil immersedS = Swing Out SeriesU = Utility Series

S = Standard Rectifier (Manual taps)C = Constant Current (Reactor style)D = Constant Current (Solid state)E = Constant Voltage (Solid state)

G = Gas StationE = ESP = Proline

P = Constant Potential (Solid state)I = Constant PotentiallR Free (Solid state)M = Multiple Modes (Solid state)V = Variac Control

COOLINGA = Air Cooleda = Oil ImmersedX = Oil Immersed, Explosion Proof

STACK TYPE E = SeleniumI = Silicon

C = Selenium, Center TapS = Silicon, Center Tap

DC VOLTS List Max. DC Volts Desired

DC AMPS List Max. DC Amps Desired

ACINPUTA = 1151230 10B = 230/460 10C = 230/460 30

D =208 30E = 115/480 10F = Specify

A

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S A E 20 20 A

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BCF

SPECIAL FEATURES

Dual input wired for low voltageDual input wired for high voltageAC and DC arrestorsDC arrestorAC arrestorFilter chokeCommunications filterMeter switchesBase mountingPilot lightDC failure lightDC fuse115 VAC convenience outletPainted cabinet (Galv. std. on most models)Aluminum cabinetAnodized aluminum cabinetAnodized aluminum cabinet with clear coatOther than standard tapsMultiple circuits (qty.)Other, specify

EXAMPLE

This chart is useful forcalculating A.C. line current.Multiply D.C. volts times the D.C.amperes to obtain the figuresacross the bottom of the chartand follow a vertical line up untilthe A.C. voltage and phaseselected is intersected. Readacross the chart for the A.C. linecurrent.

Example: A 24 volt 100 amp rec­tifier operating on 230 volts A.C.three phase will draw 8 A.C.Amperes.

For units less than 10';000 D.C.watts, divide all figures by 10.

~.

"".

2000 3000 4000 5000 6000D.C. Volts X D.C. Amps

7000 8000 9000

25

20

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MAXIMUM ALLOWABLE CABINET WATTAGEOIL IMMERSED

CASE SIZE OIL CAPACITY DC WATIS DC WATISUS GALLONS SINGLE PHASE 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

MAXIMUM ALLOWABLE CABINETWATTAGE - AIR COOLED

CASE SIZE SINGLE PHASE THREE PHASE

A 1200 --8 2800 2000

C 6000 6500

0 10000 12000

E -- 18000

AVERAGE SHIPPING WEIGHTS FOR RECTIFIERS BY CABINET SIZE

CASESIZE PMO MAO AO 80 CO DO EO FO GO

SINGLEPHASE 601bs. 200 450 594 731 935 1020 1200 1400

THREEPHASE N/A N/A 518 660 860 1100 1200 1400 1600

CASESIZE A 8 C 0 E

SINGLEPHASE 1351bs. 185 300 410 525

THREEPHASE N/A 225 385 625 750 15

Universal Rectifiers, Inc. manufactures cathodic protection junction boxesto meet all needs. A full line catalog is available upon request.

STANDARD ENCLOSURESAVAILABLE

• Galvanized steel• Painted steel• Stainless steel• Aluminum• Anodized Aluminum• Fiberglass• Non Metalic

TYPICALJUNCTION BOXINSTALLATION

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Universal Rectifiers, Inc.1613 Cottonwood Rd.

P.O. Box 1640Rosenberg, Texas 77471

(281) 342-8471FAX (281) 342-0292