RB226 SUPERIOR ELECTRIC, RB226 Datasheet
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RB226
Manufacturer Part Number
RB226
Description
Transformer
Manufacturer
SUPERIOR ELECTRIC
Series
226r
Type
Variable Transformer Brush Kitsr
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
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.
1
2
3
®
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
C
PART NUMBER
NC
NO
122819-001
122819-002
1-800-787-3532
1-800-821-1369
1-800-787-3532, Ext. 70782
®
RESISITOR
LIMIT SWITCH
UPPER
C
BRUSH ASSEMBLY
The right to make engineering refi nements on
all products is reserved. Dimensions and other
details are subject to change.
NC
NO
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 ...