RB226 SUPERIOR ELECTRIC, RB226 Datasheet

RB226

Manufacturer Part Number

RB226

Description

Transformer

Manufacturer

SUPERIOR ELECTRIC

Series

226r

Type

Variable Transformer Brush Kitsr

Datasheets

1.RB226.pdf (2 pages)

2.RB116BRB117BRB1167C.pdf (1 pages)

Specifications of RB226

Transformer Mounting

Bench

Transformer Type

Variable

Secondary Current Nom

7.5A

Supply Voltage

240V

Output Voltage

280V

Output Current

7.5A

Accessory Type

Replacement Brush Assembly

Primary Type

Brushes

Power Rating

2.1kVA

Primary Voltages

2 X 120V

For Use With

226 Series Of Powerstat Variable Transformers

Lead Free Status / Rohs Status

RoHS Compliant part

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Download datasheet (441Kb)

002105-079 REV G

Superior Electric • 28 Spring Lane • Suite 3 • Farmington, CT USA

HOLES AT .25"

BOLTS AS INDICATED

[88.90]

3.50"

[123.95]

[40.39]

NOTE: All dimensions are in inches [millimeters]

1.59"

4.88"

TEMPLATE NO. 2

www.superiorelectric.com

[158.75]

6.25"

[203.20]

8.00"

[238.25]

9.38"

[352.55]

13.88"

A POWERSTAT Variable Transformer is a precision product packed with care.

When unpacking, examine carefully for any shipping damage. Inspect the brush

contact with particular care. The “Damage and Shortage” Instructions packed

with the unit outline the proper procedure to follow if any parts are damaged

or missing.

NOTE- The unit should be protected from any dust or debris that may be

encountered while drilling holes, installing wiring, etc., during installation.

POWERSTAT Variable Transformer types 126 and 226 have two sets of

mounting holes to facilitate installation in new or existing layouts. Use the set

that is most convenient for the application. All models are designed so that

the same unit can be either bench or back-of-panel mounted as desired. The

units as shipped are arranged for bench mounting. To change to back-of-panel

mounting, proceed as outlined.

The 3PN model, has a cord and plug input and a receptacle output, and is

usually used as a portable source of variable a-c voltage. If desired they may

be mounted in the same manner as other manually operated single units.

BENCH OR WALL MOUNTING

1. Locate and drill for mounting bolt holes “A” using Drilling Template No. 1.

2. Place the unit in position. Insert and tighten the mounting bolts. For mounting

BACK-OF-PANEL MOUNTING

1. Using Drilling Template No. 1, locate and drill the four mounting bolt holes “A”,

2. Loosen the knob setscrews and remove the knob, Remove the dial and

3. Loosen the shaft setscrews (at the base end of the shaft) and slide the shaft

With ordinary care, a POWERSTAT Variable Transformer should require no

servicing except possible replacement of the brush assembly. The brush should

be inspected periodically and replaced if arcing takes place or if it is badly worn.

Because the brush must be of a special material, replace only with a Superior

Electric brush assembly listed below. The assembly is designed to assure perfect

contact of the brush to the commutator regardless of brush position and length of

time in use. Take care to avoid scraping, scratching or marring the commutator

surface. Follow these steps to install a new brush assembly:

1. Remove the plate block above the terminal panel.

2. Unfasten the brush assembly anchor screws, remove and discard the old

3. Insert the new brush assembly in the radiator slot, replace the anchor screws

4. Raise the brush and place a piece of sandpaper (grit #400 or ﬁ ner) between

5. While holding the sandpaper in place (ﬂ at), rotate the radiator through a short

Important connection notes. Please read carefully.

· CONNECTIONS AND RATINGS given in these instructions are those most

· For ambient temperatures between -20°C and +50°C use current ratings

· Coil to terminal connections for all 126 and 226 Series units are shown in

· The connection diagrams are labeled “L” for Line Connections, “B” for Boost

· The F226 Series POWERSTAT® Variable Transformers do not have

· For the Step-Up Connections the tables show maximum output current rating

OPERATION AT TEMPERATURES ABOVE 50°C

002105-079 REV G

Three pilot holes in the base (identiﬁ ed as “B” on template) may also be

used if desired. These pilot holes are .157”/.167” in diameter by 13/32” deep

to accommodate #10 self-tapping screws. When these holes are used, it is

necessary to have access to the rear of the mounting surface.

holes “B”, the length of the bolts must not exceed the thickness of the

mounting surface plus 3/8”.

the dial screw holes “C” and the center shaft hole. Maximum panel thickness

is 3 inches. The dial screw holes must be tapped to accommodate the 6-32

screws supplied. Three pilot holes in the base (holes “B” on template) may

also be used if desired. The holes are .157”/.167” in diameter by 13/32” deep

to accommodate #10 self-tapping screws. Flat head screws must be used,

since they will be partially covered by the dial.

mount it to the panel with the three 6-32 screws.

through so it will project about 13/16” through the panel after installation.

Tighten the setscrews.

brush assembly.

and tighten to the radiator. Be sure that the back end of the brush strap is

under the projections at the rear of the radiator brush slot.

the commutator surface and the brush so that the smooth side is on the

commutator and the abrasive side is against the carbon brush.

arc. Remove the sandpaper and blow out the excess carbon particles.

commonly used. In addition, all ganged units may be connected so that

the units operate electrically independent on a common shaft. When this is

desired, connections and ratings for a single deck unit should be used.

given in the charts. Figure A shows the output current de-rating required

above 50°C.

Figures B, C, and D.

Connections and “S” for Step-Up Connections.

terminals 6 & 7 available and therefore do not have a Step-Up (“S”)

Connection. Terminal #3 is after the fuse on all F models.

for output voltages up to 125% of the input voltage, and maximum KVA at

maximum output voltage. The output current must be reduced according to

MANUALLY OPERATED ASSEMBLIES

FIGURE A

instructions

FARMINGTON, CT 06032 USA

28 SPRING LANE • SUITE 3

www.superiorelectric.com

OPERATION IN “STEP-UP” CONNECTION

INSTALLATION

for INSTALLATION OPERATION and MAINTENANCE

INSPECTION

SINGLE UNITS

POWERSTAT

FIGURE E

VARIABLE TRANSFORMERS

WITH POWERKOTE

CONNECTIONS AND RATINGS

Telephone and Fax Numbers

Telephone

Fax

Customer Service

Product Application 860-507-2025, Ext. 72058

126-226 Series

VIEWED FROM RADIATOR END

126 TYPES

FIGURE B

MAINTENANCE

860-507-2025

860--507-2050

860-507-2025, Ext. 70782

INPUT 120 V.

50/60 Hz

6. Rotate the radiator several times to check for smooth travel of the brush over

LOWER

RAISE

4. Place the unit in position, insert and tighten the mounting bolts. Be sure

BENCH OR WALL MOUNTING

A. On Standoffs

B. On Side Brackets

BACK-OF-PANEL MOUNTING

1. Locate and drill the four mounting bolt holes “A”, the three dial screw holes

2. Remove the knob and dial. Loosen the shaft setscrews (at the base end of

3. Mount the dial to the panel with the 6-32 screws supplied.

4. Place the unit in position. Insert and tighten four 1/4-28 mounting bolts.

5. Place the knob on the shaft and position the pointer correctly with respect

Motor-driven POWERSTAT Variable Transformers of the 126-226 Series, both

single units and ganged assemblies, may be bench or wall mounted in the same

manner as manually operated ganged assemblies. Three-gang assemblies,

however, have three side brackets requiring six bolts.

· Clockwise (CW) and counterclockwise (CCW) rotation connections shown

· Fuses are recommended on all units as shown (§) and are supplied on F

· COMMON shown in the connection diagrams is used as third leg in 3-

· Motor drive wiring is shown in Figure F.

· Cord-and-plug units (3PN type) are wired in the Boost (“B”) Connection

the commutator surface. The brush should ﬁ t ﬂ at over the entire commutator

surface. No space should be visible between the brush and the surface.

that the mounting bolt length does not exceed the panel thickness plus 3/8”

when using holes “B”. Place the knob on the shaft and position the pointer

correctly with respect to the brush position and the dial indications. Tighten

the knob setscrews.

1. Locate and drill the mounting bolt holes (four holes “A”) using Drilling

2. Place the unit in position. Insert and tighten the mounting bolts. When

1. Locate and drill the four mounting bolt holes using Drilling Template

2. Insert and screw in part way the two top mounting bolts.

3. Place the unit in position and insert the two bottom bolts. Tighten all

“C” and the center shaft hole using Drilling Template No. 1. Maximum panel

thickness is 3”. The three dial screw holes must be tapped to accommodate

the 6-32 screws supplied.

each unit) and slide the shaft through so it will project about 13/16” through

the panel after installation. Turn the radiators of the units to the extreme

counterclockwise position and tighten the shaft setscrews.

Mounting bolts are supplied with the unit for use with panels to ¾” thick.

For thicker panels use 1/4-28 bolts 3/8” longer than the panel thickness. A

ganged assembly, because of its added length and weight, requires extra

support in the form of a shelf or cradle.

to the brush position and the dial indications. Tighten the setscrews.

the curve in Figure E for output voltages greater then 125% of input voltage.

Maximum KVA may be calculated using the rating curve in Figure E for

voltages less then maximum.

in the tables and diagrams are for motor driven units and units with the knob

on the radiator end. For connections with the knob on the base end, use

the shown CCW connection for CW operation, and shown CW connection

for CCW operation.

and 3PN models. Supplied fuses are 15 ampere on 126 types, and 8 ampere

on 226 types.

phase open delta, or neutral in single-phase 3-wire and 3-phase 4-wire wye

conﬁ gurations. COMMON is not used in single-phase 2-wire or 3- phase

3-wire wye conﬁ gurations. Jumper(s) provided in standard common position

should be moved or removed as required.

when shipped.

Whenever unusual mechanical or electrical difﬁ culties are encountered in

the operation or installation of your POWERSTAT Variable Transformer,

consult Superior Electric.

MODEL NUMBER

Template No. 1.

access to the rear of the mounting panel is not possible, the unit may

be mounted to an adapter plate and the adapter plate mounted to the

panel using lag screws. Additional support in the form of a shelf or cradle

should be provided when wall mounting these units.

No. 2. BE SURE TO USE THE PROPER SET OF HOLES.

bolts.

126

226

REPLACEMENT BRUSH ASSEMBLIES

DRIVE MOTOR

COILS

VIEWED FROM RADIATOR END

Toll-Free (in USA and Canada only)

Telephone

Fax

Customer Service

Product Application 1-800-787-3532, Ext. 72058

MOTOR-DRIVEN ASSEMBLIES

MOTOR DRIVE WIRING

226 TYPES

FIGURE C

LIMIT SWITCH

GANGED ASSEMBLIES

LOWER

FIGURE F

PART NUMBER

122819-001

122819-002

1-800-787-3532

1-800-821-1369

1-800-787-3532, Ext. 70782

RESISITOR

LIMIT SWITCH

UPPER

BRUSH ASSEMBLY

The right to make engineering reﬁ nements on

all products is reserved. Dimensions and other

details are subject to change.

FIGURE

DESCRIPTION

VIEWED FROM RADIATOR END

F226 TYPES

RB126

RB226

F126 AND

FIGURE D

Printed in USA

Related parts for RB226

RB226 Summary of contents

Page 1

... Dimensions and other details are subject to change. 1-800-787-3532 1-800-821-1369 1-800-787-3532, Ext. 70782 Printed in USA GANGED ASSEMBLIES FIGURE BRUSH ASSEMBLY PART NUMBER DESCRIPTION 122819-001 RB126 122819-002 RB226 VIEWED FROM RADIATOR END F126 AND F226 TYPES FIGURE D RESISITOR LOWER UPPER LIMIT SWITCH LIMIT SWITCH ...

Page 2

... Current Load Input Output Jumper Freq. Max. Max. Manually Motor Conn (Hz) Amps KVA Operated Driven Diag. CCW CCW CCW 226U-3 MC226U-3 6 002105-079 REV G TEMPLATE NO. 1 NOTE: All dimensions are in inches [millimeters] Superior Electric • 28 Spring Lane • Suite 3 • Farmington, CT USA www.superiorelectric.com ...

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