Popular
Variable Transformers
and AC Power Supplies
Product Guide—
AC Voltage Control
Guide
Devices
Guide
www.stacoenergy.com
Your Tailored Power Solutions ProviderTM
Staco Energy Products Co. has been a leading manufacturer of variable
transformers for over 65 years, building standard and customdesigned products for industrial, commercial and military applications.
Variable transformers have many industrial and laboratory applications
as basic components to control voltage, current, power, heat, speed,
light and electromechanical force.
A basic Staco variable transformer consists of a single layer magnet
wire winding on a toroidal core of laminated silicon steel. A carbon
brush, connected to an output lead, is rotated over a precision
ground, plated commutator track to tap off voltage at any turn from
zero to the maximum output voltage of the winding.
Staco research has developed design features and proprietary processes to provide longer lasting, more reliable products. Particularly
important is the high-temperature foundation material bonding the
coil securely to the core assembly. This material has a high thermal
transfer characteristic so that it dissipates heat from the brush contact
area, increases the heat distribution of the core itself, and provides
the transformer with greater tolerance to transients and short-term
overloads.
Some Models Are
Listed by the Canadian Standards Association
File No. LR18948
In addition to the basic styles illustrated, Staco Energy can meet your
specific requirements with hundreds of additional standard model
variations and configurations from 0.8 to 450 amps, 120 to 575 volts,
50 Hz and up. 480 volt units are shown on page 8 and in our Variable
Transformer Voltage Control Catalog (VT-5). These models include
cased and uncased, single and three phase manual and motor driven
models, and complete voltage control systems. Complete information
is contained in our Variable Transformer Voltage Control Catalog.
To serve your needs promptly, Staco Energy has a national network of
stocking distributors to assure immediate off-the-shelf delivery. Your
local Staco distributors and representatives are factory trained, and
capable of assisting you in selecting the particular Staco transformer
best suited for your application.
Contact our factory or visit the “Where to Buy” section of www.
StacoEnergy.com for the name of the distributors or sales representative
in your area.
For nonstandard products (to meet your special application needs) our
engineering staff will quickly respond with custom solutions to your
application requirements. Often a simple revision to a standard component is all that is required, allowing us to keep your costs at a minimum.
Dimensions are provided throughout this
catalog in inches [millimeters].
Panel Mount, Single Phase — 120 and 240 Volt
Adjustable Shaft
100 and 200 Series
Type
171, 201
221-B, 252
291
Output
Input
171, 201
221-B, 291
A
1.88" (47.6)
2.12" (54.0)
2.31" (58.7)
Part No.
Volts
171
120
201
120
221-B
120
291
120
252
240
500 Series
Hertz
50/60
60
50/60
60
50/60
60
50/60
60
50/60
60
Volts
Constant
Current
Load
Constant
Impedance
Load
Max.
Max.
Amps. kVA
Max. Max.
Amps. kVA
0-120
0-132
0-120
0-132
0-120
0-132
0-120
0-132
0-240
0-264
1.75
1.75
2.0
2.0
2.50
2.50
3.0
3.0
0.8
0.8
Volts
Constant
Current
Load
511
Volts
120
Hertz
50/60
2.2
—
2.5
—
3.2
—
3.5
—
1.0
—
0.26
—
0.30
—
0.38
—
0.42
—
0.24
—
Constant
Impedance
Load
Max.
Max.
Amps. kVA
Max. Max.
Amps. kVA
2
2
2.5
2.5
2.5
Output
Input
Part No.
0.21
0.23
0.24
0.26
0.30
0.30
0.36
0.40
0.19
0.21
Net Wt.
Lbs.
0-120
0-140
5.0
5.0
0.60
0.70
7.0
—
0.84
—
Volts
Constant
Current
Load
Constant
Impedance
Load
Max.
Max.
Amps. kVA
Max. Max.
Amps. kVA
Net Wt.
Lbs.
4.25
Adjustable Shaft
501C Series
Output
Input
Part No.
501C
Variable Transformers
Volts
120
Hertz
50/60
0-120
0-140
5.0
5.0
0.60
0.70
www.stacoenergy.com
7.0
—
0.84
—
Net Wt.
Lbs.
5.25
Adjustable Shaft
1000 and 2200 Series
Output
Input
Constant
Current
Load
1010 & 1210
Part No.
1020 & 1220
Types 1210B and 1220B
include terminals 1, 3 and 4 only.
Hertz
Volts
Volts
1010B
120
50/60
1210B
120
60
1020B
240
50/60
1220B
120
240
50/60
60
1500 Series
Max.
Amps.
Max.
kVA
0-120
0-140
0-120
0-240
0-280
0-280
0-240
10.0
10.0
12.0
3.5
3.5
3.5*
5.0
1.20
1.40
1.44
0.84
0.98
0.42*
1.20
Volts
Constant
Current
Load
Constant
Impedance
Load
Max. Max.
Amps. kVA
Max. Max.
Amps. kVA
1510
1520
1510
A 4.25" (108.0)
Hertz
Volts
Net Wt.
Lbs.
Max. Max.
Amps. kVA
13.0
—
15.0
5.0
—
—
7.0
1.56
—
1.80
1.20
—
—
1.68
10.25
10.25
10.25
10.25
Output
Input
Part No.
Constant
Impedance
Load
1510
120
50/60
1520
240
50/60
120
50/60
0-120
0-140
0-240
0-280
0-280
15.0
15.0
9.5
9.5
9.5*
1.80
2.10
2.28
2.66
1.14*
20.0
—
12.0
—
—
2.40
—
2.88
—
—
Net Wt.
Lbs.
15.75
19.25
1520
4.62" (117.3)
2500 Series
Output
Input
2510
Part No.
Volts
Hertz
Volts
Max.
Amps.
2520
0-120
0-140
0-240
0-280
0-280
50/60
2510
120
2520
240
50/60
120
50/60
5000 Series
Constant
Impedance
Load
Constant
Current
Load
Max.
kVA
Max. Max.
Amps. kVA
25.0 3.00
25.0 3.50
10.0 2.40
10.0 2.80
10.0* 1.20*
30.0
—
13.0
—
—
Volts
Hertz
3.60
—
3.12
—
—
21
21
Output
Input
5011
Part No.
Net Wt.
Lbs.
Constant
Current
Load
Volts
Net Wt.
Lbs.
Max. Max.
Amps. kVA
5011
120
50/60
5021
240
50/60
120
50/60
5021
Single Unit
6000 Series
0-140
0-240
0-280
0-280
Volts
Hertz
7.00
6.70
7.80
3.40*
57
57
Output
Input
Part No.
50.0
28.0
28.0
28.0*
Volts
Constant
Current
Load
Net Wt.
Lbs.
Max. Max.
Amps. kVA
6011
120
50/60
6020
240
50/60
120
50/60
0-120
0-140
0-240
0-280
0-280
*Voltage Doubler operation, refer to Variable Transformer Voltage Control Catalog (VT-5).
Data is subject to change without notice.
Staco Energy Products Co.
60.0 7.20
60.0 8.40
35.0 8.40
35.0 9.80
35.0* 4.20*
67
63
Enclosed Cord and Plug Series
The cased plug-in models feature a ventilated steel case, input line cord and
plug, NEMA rated output receptacle, and an illuminated on/off switch. They are
connected for output voltage increase with a clockwise rotation, and the dials are
graduated from 0 - 100 percent of the voltage setting. For application flexibility,
two field modification kits have been added to the product line. The 3PN-MK
kit allows either the 3PN221B or 3PN501B to be wall, bench top, or machine
mounted. The 3PN-SK kit provides an adjustable voltage stop for either the
3PN1000, 3PN1200, or 3PN1500 Series.
Plug and Receptacle Styles
3PN 120 Volt Types
Output
Input
Hertz
Volts
Part No.
3PN221B
3PN501B
Constant
Impedance
Load
Constant
Current
Load
Volts
60
50/60
120
3PN 240 Volt Types
Max.
Amps.
Max.
kVA
0-132
0-140
2.50
5.0*
0.33
0.70
Volts
Constant
Current
Load
Height
Width Depth
Net
Wt.
Lbs.
Max. Max.
Amps. kVA
—
—
—
—
3
5.31
6.06 4.10
[134.9] [154.0] [104.2] 7.75
3PN-MK-Kit
Output
Input
Part No.
Hertz
Volts
Constant
Impedance
Load
Max.
Amps.
Max.
kVA
Height
Width Depth
Net
Wt.
Lbs.
Max. Max.
Amps. kVA
3PN1010B
120
50/60
0-140
10.0
1.40
—
—
5.50
4.62 6.96 10.25
[139.7] [117.4] [176.8]
3PN1210B
120
60
0-120
12.0
1.44
15.0
1.80
5.50
4.62 6.96 10.25
[139.7] [117.4] [176.8]
3PN1020B
240
50/60
0-280
3.5
0.98
—
—
5.50
4.62 6.96 10.25
[139.7] [117.4] [176.8]
3PN1220B
240
60
0-240
5.0
1.20
7.0
1.68
5.50
4.62 6.96 10.25
[139.7] [117.4] [176.8]
Volts
Constant
Current
Load
3PN-SK-Kit
Output
Input
Part No.
Hertz
Volts
Max.
Amps.
Max.
kVA
Height
Width Depth
Net
Wt.
Lbs.
Max. Max.
Amps. kVA
3PN1510B
120
50/60
0-140
15.0
2.10
—
—
6.00
6.24 9.35
[152.4] [158.4] [237.4]
18
3PN1520B
240
50/60
0-280
9.5
2.66
—
—
6.00
6.24 9.35
[152.4] [158.4] [237.4]
22
2200 and 2500 Series
Output
Input
Constant
Current Load
Part No.
Variable Transformers
Constant
Impedance
Load
Constant
Impedance Load
Max.
Amps
Max.
kVA
Max.
Amps
Max.
kVA
0-140
22.0
3.08
0-280
10.0
2.80
-------
-------
Volts
Hertz
Volts
3PN2210B
120
50/60
3PN2520B
240
50/60
HxWxD
(cm)
6.31x 7.95x 10.85
(160.3x202.1x275.6)
www.stacoenergy.com
Net Wt.
Lbs.
24.25
Metered Models
necessary. The 120 volt types have 0-150V voltmeters and the
240 volt types have 0-300V voltmeters. Units with voltmeters
have the suffix“V” at the end of their part number. Units with
ammeters have the suffix “A.”
Cased plug-in models of the 1010B, 1020B, 1510 and 1520 series are
also available with a pivot and jewel AC voltmeter or ammeter (+/- 5%
full scale accuracy) conveniently located atop the enclosure for easy
accurate readout. It is ideal for applications where voltage control is
Input
Part No.
3PN1010BV
3PN1010BA
3PN1510BV
Volts
Output
Hertz
120
120
120
50/60
50/60
50/60
Volts
0 - 140
0 - 140
0 - 140
Current
HxWxD
(cm)
10.0
(139.7x117.4x176.8)
10.0
15.0
3PN1510BA
120
50/60
0 - 140
15.0
3PN1020BV
240
50/60
0 - 280
3.5
3PN1020BA
240
50/60
0 - 280
3.5
3PN1520BV
240
50/60
0 - 280
9 5.
3PN1520BA
240
50/60
0 - 280
9 5.
5.50 x 4.62x 6.96
5.50x 4.62x 6.96
(139.7x117.4x176.8)
6.00x 6.24x 9.35
(152.4x158.4x237.4)
6.00x 6.24x 9.35
Net Wt.
Lbs.
10.25
10.25
18
(152.4x158.4x237.4)
22
5.50x 4.62x 6.96
10.25
(139.7x117.4x176.8)
5.50 x 4.62x 6.96
10.25
6.00x 6.24x 9.35
22
(139.7x117.4x176.8)
(152.4x158.4x237.4)
6.00x 6.24x 9.35
(152.4x158.4x237.4)
22
Isolated Portable Cord and Plug Models
Input
Output
HxWxD
(cm)
Part No.
Volts
Hertz
Volts
Current
3PNJ201B
120
50/60
0 - 140
2.0
(139.7x117.4x176.8)
3PNJ401B
120
50/60
0 - 140
4.0
(152.4x158.4x237.4)
5.50 x 4.62x 6.96
6.00 x 6.24x 9.35
Data is subject to change without notice.
Staco Energy Products Co.
Net Wt.
Lbs.
9
17
Controller Units
Microprocessor Controller
Advantages:
The MP Controller comes in three basic models:
N
Intelligent Microprocessor Based
MPA - Single channel feedback and control
N
Controls variable voltage transformer regulation to
within +/-0.5 volts
MPB - Two independent channels of feedback and control
N
Multi-channeled unit enables control of 1, 2 or 3 individual
varaiable transformers or each phase of a 3 phase unit
Available Options:
N
LCD display of feedback signals and set points
N
Bi-directional RS-232, RS-422, IEEE-488 communication ports
N
Available with standard analog control signals for set
point and control functions.
N
Single, double, or tiiple channel feedback
N
Process control set point
N
Available with standard bi-directional RS-232, RS-422,
IEEE-488 communication ports for set point and control
functions.
N
Optical isolation of control and feedback inputs for reduced noise
interference
N
Panel mounted microterminal for local control and monitoring
N
Multiple set points, ramping, and dwells are available.
N
Phase loss detection
N
User programmable to accept peak-to-peak, rms, or
average AC feedback signals
Typical Applications:
N
Heavy duty, wall-mountable NEMA 12 style enclosure.
N
Motor and compressor testing
N
Control of the unit can be local, at a remote location, or both.
N
Circuit breaker testing
N
Battery back-up RAM retains data if power is lost.
N
Plating rectifier systems
N
Microterminal available for remote or stand-alone
monitoring and control
N
Quality control testing
N
Engineering laboratories
N
Precise control of voltage ramping through the use of
state-of-the-art PWM technology
N
Industrial processes
N
Expanded memory allows customiztion to specific
application requirements.
N
Voltage Regulation
N
Field upgradeable -- options can be installed in the field
as your needs change.
N
Automatic shut-down or alarm with phase loss detection
MPC - Three independent channels of feedback and control
Microprocessor Controller
with optional microterminal
FRC-20 Controller
Advantages:
N
Regulated Output Voltage
N
0-5 VDC or 4-20 mA Set Point Control
N
1 kohm Potentiometer or Fixed Resistor Network Control
N
Full or Limited Range Control
N
Compact Size
N
Easy to Mount
N
Up to 600 VAC Feedback
Voltage Operation
N
Current Regulation
The FRC-20 Controller is a versatile, field modifyable controller
that has a low install cost and low cost of operation. It is designed
to position and regulate any Staco Energy motor driven variable
transformer, and can be controlled with a 0-5 VDC or 4-20 Ma
set point, a 1k ohm potentiometer, or a fixed resistor network.
It maintains a full range regulation of 0.5% and a limited range
regulation of 0.25%.
The FRC-20 is field configurable for feedback voltage ranges up
to 600 volts, for either full range or limited range control. It is
small and can be easily mounted on the motor base plate of the
variable transformer or inside an enclosure. Current and other
feedback alternatives are also available.
FRC-20 Controller
Variable Transformers
www.stacoenergy.com
Ganged Variable Transformer Assemblies
Single Phase Models
High Current Models
Part No.
By ganging the variable transformers with a common rotor shaft,
and wiring the outputs in parallel, the output current can be greatly
increased. The models listed on this page are capable of output
currents up to 540 amps. Other models are available in a variety
of ranges. Please refer to our Variable Transformer Voltage Control
Catalog (VT-5) for additional information.
6011-2P
6011-3P
6011-4P
6011-5P
6011-6P
6011-7P
6011-8P
6011-9P
6020-2P
6020-3P
6020-4P
6020-5P
6020-6P
6020-7P
6020-8P
6020-9P
Three Phase Models
All models of Staco variable
transformers can be ganged
with a common rotor shaft
and wired for three phase
operation in either open Delta
or Wye configuration. The
table below lists a few typical
240 and 480 volt models.
Please refer to our Variable
Transformer Voltage Control
Catalog (VT-5) for additional
models.
Output
120
0-120
or
0-140
240
0-240
or
0-280
Current
(Amps)
kVA
120.0
180.0
240.0
300.0
360.0
420.0
480.0
540.0
70.0
105.0
140.0
175.0
210.0
245.0
280.0
315.0
16.8
25.2
33.6
42.0
50.4
58.8
67.2
75.6
19.6
29.4
39.2
49.0
58.8
68.6
78.4
88.2
Current
(Amps)
kVA
Three Phase Models
Part No.
30M5011-3Y Model
Input
221B-3
291-3
501C- 3
1010B-3
1510-3
2510-3
6011-3Y
6011-6Y
6011-9Y
M6011-12Y
M6011-15Y
M6011-18Y
M6011-21Y
M6011-24Y
M6011-27Y
M6011-30Y
M6011-33Y
M6011-36Y
1020B-3
1520-3
2520-3
6020-3Y*
6020-6Y
6020-9Y
M6020-12Y
M6020-15Y
M6020-18Y
M6020-21Y
M6020-24Y
M6020-27Y
M6020-30Y
M6020-33Y
M6020-36Y
Input
Output
0-208/120
or
0-240
with
208/120
input
208/120
or
240
480/277
or
480
0-240
or
0-280
with
240
input
0-480/277
or
0-560
with
480/277
input
2. 5
3.0
5 .0
10.0
15.0
25.0
60.0
120.0
180.0
240.0
300.0
360.0
420.0
480.0
540.0
600.0
660.0
720.0
3.5
9.5
10.0
35.0
70.0
105.0
140.0
175.0
210.0
245.0
280.0
315.0
350.0
385.0
420.0
1.0
1.25
2 .1
4.2
6.2
10.4
24.9
49.8
74.7
99.6
124.5
149.4
174.3
199.2
224.1
249.0
273.9
298.8
3.4
9.2
9.7
33.9
67.8
101.7
135.6
169.5
203.5
237.4
271.3
305.1
339.1
373.0
406.9
* All 6020 Three Phase Models are rated for 575 volts 60 Hz input, 0-575 volts output.
Data is subject to change without notice.
Staco Energy Products Co.
Service Options
With our ServiStar® program, a wide range of planned maintenance and extended
service options are offered to maximize equipment life and reliability of your FirstLine®
UPS. Through an extensive network of factory trained professionals you receive:
N
Annual Service Plan
N
24/7 Emergency Service
N
Preventive Maintenance
N
Programs tailored to meet your needs
About Staco Energy Products
Since 1937, customers worldwide have been
relying on Staco Energy Products Company
to deliver voltage control and power quality
solutions tailored to their needs.
As a leading power quality resource, we offer
our customers world-class support; from our
thorough applications assessment, to our
ability to design and deliver a solution that is
tailored to the specific needs of our customers;
through delivery and commissioning.
In addition to Variable Transformers
we offer a wide array of power quality
products, including:
N Uninterruptible Power
Supplies
N Power Conditioners
N Voltage Regulators
N Power Factor Correction and
Harmonic Mitigation
N Active Harmonic Filters
N Variable Transformers
N Custom Engineered Test Sets
Our professional, factory trained service team is
in place to ensure that our customers’ revenues
are protected, and their investment
provides them with many years of
trouble free operation.
Staco develops total power solutions
for OEM and end user applications.
Contact Us:
US Toll Free: 866-261-1191
Phone: 937-253-1191
E-mail: sales@stacoenergy.com
Your Tailored Power Solutions ProviderTM
©2014Staco Energy Products Co.
VT-Prod-guide_042514
ISO
9001 : 2008
CERTIFIED
For more information about Variable Transformers
www.stacoenergy.com
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Staco:
3PN-SK 3PN-MK 5011CT 2520C 1510C 1510C-2 1510C-3 2510C-2 2510C-3 2520C-2 2520C-3 3PN1520BA
3PN1520BV 5011-2S 5011-3P 5011-4D 5011-4P 5011-4PS 5011-5P 5011-6D 5011-6P 5011-6PS 5011C-2D
5011C-2P 5011C-2S 5011E-3P 5011E-4D 5011E-4P 5011E-4PS 5011E-5P 5011E-6D 5011E-6P 5011E-6PS
5021-2D 5021-2S 5021-4D 5021-4PS 5021-6D 5021-6P 5021-6PS 5021-6Y 5021C-2D 5021C-2P 5021CT-2D
5021CT-2S 5021E-4D 5021E-6D 5021E-6PS 5021E-6Y 6011-2D 6011-2P 6011-2S 6011-3P 6011-4D 6011-4P
6011-4PS 6011-5P 6011-6D 6011-6P 6011-6PS 6011C 6011C-2D 6011C-2P 6011C-2S 6011CT 6011CT-2D
6011CT-2P 6011CT-2S 6011E-3P 6011E-4D 6011E-4P 6011E-4PS 6011E-5P 6011E-6D 6011E-6P 6011E-6PS
6020-2D 6020-3P 6020-4D 6020-4P 6020-5P 6020-6D 6020-6P 6020-6PS 6020-6Y 6020C-2D 6020C-2S
6020CT-2D 6020CT-2S 6020E-4D 6020E-4P 6020E-4PS 6020E-5P 6020E-6D 6020E-6P MPA MPAS MPA2
MPA2T MPB