5021-3P Staco Energy Products Company, 5021-3P Datasheet - Page 2

• Manufacturer Part Number: 5021-3P
• Description: Transformers
• Manufacturer: Staco Energy Products Company

Specifications of 5021-3P

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

5000 Series
The 5011/5021 Series Variable transformers are designed to
control large KVA requirements. The 5011 operates on 120
volts and is rated for constant current of 50 amperes. The 5021
operates on 240 volts and constant current of 28 amperes. The
5011 Series units have coil tapping arrangements allowing out-
put voltage from 0-117% of line voltage, while the 5021 Series
allows output voltage from 0 to line voltage or 17% above line
voltage. They can be operated at frequencies between 50 and
400 Hertz with a rating at higher than rated frequency.
Adjustable shaft design on manually operated models permits
back-of-panel or bench mounting. Terminals are 1/4” screw
type. For single and two ganged units, case styles are available
in either “C” style, which encloses only the coil, or the “CT” style,
5011
MANUALLY
OPERATED
5011CT-2D M5011CT-2D Open Delta
5021CT-2D M5021CT-2D Open Delta
5011CT-2P M5011CT-2P
5011CT-2S M5011CT-2S
5021CT-2P M5021CT-2P
5021CT-2S M5021CT-2S
5011C-2D
5011C-2P
5011C-2S
5021C-2D
5021C-2P
5021C-2S
5011E-3P
5011E-3Y
5011-2D
5011-2P
5011-2S
5021-2D
5021-2P
5021-2S
5011-3P
5011-3Y
5011CT
5021CT
5011C
5021C
5011
5021
PART NUMBER
M5011C-2D
M5011C-2P
M5011C-2S
M5021C-2D
M5021C-2P
M5021C-2S
M5011E-3P
M5011E-3Y
M5011-2D
M5011-2P
M5011-2S
M5021-2D
M5021-2P
M5021-2S
M5011-3P
M5011-3Y
M5011CT
M5021CT
M5011C
M5021C
MOTOR
DRIVEN
M5011
M5021
WIRING
Parallel
Parallel
Parallel
Single
Phase
Single
Phase
Phase
Single
Phase
Single
Phase
Series
Phase
Single
Phase
Single
Phase
Series
Single
Phase
Phase
Three
Three
Three
Wye
5021
VOLTS
120
240
120
120
120
240
240
120
240
120
480
240
120
240
INPUT
HERTZ
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
50/60
60
VOLTS
0-140
0-240
0-280
0-280
0-140
0-140
0-280
0-240
0-280
0-280
0-240
0-280
0-280
0-480
0-560
0-560
0-140
0-280
OUTPUT
28*-12
28*-12
56*-24
28*-12
AMPS
MAX
V.D.
V.D.
V.D.
100
150
VD
50
28
28
50
50
28
28
56
56
28
28
50
MAX
3.4‡
12.1
14.0
14.0
11.6
13.6
5.8‡
13.4
15.7
6.8‡
13.5
15.7
6.8‡
21.0
24.2
KVA
7.0
6.7
7.8
which provides protective housing for both the coil and terminal
board. Knockouts are provided in the terminal board housing to
accomodate conduit or cable connections. For three ganged
and above, we offer our Nema 1, dripproof, fully front accessi-
ble “E” enclosure.
Motor-driven models are available from single thru 27 ganged
assemblies; cased or uncased (identified with the prefix “M” in
the part number). The synchronous motor is designed for
operation on 120 volt, 50/60 Hertz, single phase lines and
draws approximately 0.3 amperes. To meet a wide range of
application requirements, standard motor speeds of 5, 15, 30
and 60 seconds are available depending upon the size of the
variable transformer.
INCREASE
ROTATION
VOLTAGE
SHAFT
CCW
CCW
CCW
FOR
CW
CW
CW
CW
CW
CW
CW
CW
CW
CW
CW
CW
CW
CW
CW
CW
CW
CW
TERMINAL CONNECTIONS
As Viewed from Rotor End
INPUT
2-1-2
4-1-4
2-1-2
5-1-5
2-2-2
1-2
2-4
4-2
2-5
4-1
2-6
4-7
1-2
2-2
1-4
1-2
1-5
4-4
2-2
5-5
1-2
For Increasing Voltage
5021CT-2
OUTPUT
3-1-3
3-1-3
3-1-3
3-1-3
3-3-3
1-D
1-3
2-3
4-3
2-3
4-3
2-3
4-3
1-B
3-3
1-B
1-B
1-B
3-3
3-3
3-3
(Pg 8 & 9)
SCHE-
MATIC
20 & 5
20 & 4
20 & 5
20 & 4
20 & 6
18
19
21
21
22
5011C
MAN-
UAL
134
136
134
134
136
134
216
212
57
57
NET WEIGHT
IN LBS.
(MAX)
MOTOR
DRIVEN
155
157
155
155
157
155
237
233
78
78