Staco Energy Series 100, Series 200 Catalog Page
Variable Transformers
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Series 100/200
0.8 to 3.0 Amperes
100/200 Series
These manually operated panel mounted units are available in
single and three phase models from 0.8 to 3.0 amperes. The
171, 201, 221-B and 291 units operate from 120 volt input,
while the 252 unit operates from a 240 volt input. STACO’s coil
tapping arrangement permits an output voltage from 0 to line
voltage in either the clockwise or counterclockwise direction
and from 0 to 10% above line voltage in the clockwise direction. Two and three ganged, manually operated units are available for increased single phase voltage ratings and for three
phase applications.
INPUT OUTPUT TERMINAL CONNECTIONS
CONST ANT CONST ANT SHAFT
(For increasing Voltage)
P AR T NO. WIRING VOLTS HERTZ VOLTS
CURRENT IMPEDANCE ROT ATION
As Vie wed fr om Base End
SCHE- NET
LOAD LOAD FOR MA TIC WT.
MAX MAX MAX MAX
VOLTAGE Input Jumper• Output (Pg 8 & 9) LBS.
AMPS KVA AMPS KVA
INCREASE
Single
120 50/60 0-120 1.75 0.21 2.2 0.26
CW 1-2 — 1-3
171 Phase CCW 1-2 — 2-3 1 2
60 0-132 1.75 0.23 – – CW 1-4 — 1-3
Single
50/60 0-240 1.75 0.42 2.2 0.53
CW 2-2 1-1 3-3
1&4 4 1/4Phase 240 CCW 1-1 2-2 3-3
Series 60 0-264 1.75 0.46 – – CW 4-4 1-1 3-3
171-2
Three
50/60 0-120 1.75 0.36
2.2 0.46 CW 2-1-2 1-1 3-1-3
Phase
120++
— — CCW 1-2-1 2-2 3-2-3
1 & 5 4 1/4
Open
60 0-132 1.75 0.40 — — CW 4-1-4 1-1 3-1-3
Delta π
Three
CW 2-2-2 1-1-1 3-3-3
171-3 Phase 240++ 60 0-240 1.75 0.73 2.2 0.92
CCW 1-1-1 2-2-2 3-3-3
1 & 6 6 1/2
Wye π
Single 50/60 0-120 2.0 0.24 2.5 0.30
CW 1-2 — 1-3
201
Phase
120
CCW 1-2 — 2-3
12
60 0-132 2.0 0.26 — — CW 1-4 — 1-3
Single
50/60 0-240 2.0 0.48 2.5 0.60
CW 2-2 1-1 3-3
Phase 240
CCW 1-1 2-2 3-3
1 & 4 4 1/4
Series 60 0-264 2.0 0.53 — — CW 4-4 1-1 3-3
201-2
Three
50/60 0-120 2.0 0.42 2.5 0.52
CW 2-1-2 1-1 3-1-3
Phase
120++
CCW 1-2-1 2-2 3-2-3
1 & 5 4 1/4
Open
60 0-132 2.0 0.46 — — CW 4-1-4 1-1 3-1-3
Delta π
Three
CW 2-2-2 1-1-1 3-3-3
201-3 Phase 240++ 60 0-240 2.0 0.83 2.5 1.04
CCW
1-1-1 2-2-2 3-3-3
1 & 6 6 1/2
Wye π
Single 50/60 0-120 2.5 0.30 3.2 0.38
CW 1-2 — 1-3
221-B
Phase
120
CCW 1-2 — 2-3
1 2 1/2
60 0-132 2.5 0.33 — — CW 1-4 — 1-3
Single
50/60 0-240 2.5 0.60 3.2 0.77
CW 2-2 1-1 3-3
Phase 240
CCW 1-1 2-2 3-3
1 & 4 5 1/2
Series 60 0-264 2.5 0.66 — — CW 4-4 1-1 3-3
221-B-2
Three
CW 2-1-2 1-1 3-1-3
Phase
120++
50/60 0-120 2.5 0.52 3.2 0.67
CCW 1-2-1 2-2 3-2-3
1 & 5 5 1/2
Open
60 0-132 2.5 0.57 — — CW 4-1-4 1-1 3-1-3
Delta π
Three
CW 2-2-2 1-1-1 3-3-3
221-B-3 Phase 240++ 60 0-240 2.5 1.04 3.2 1.33
CCW 1-1-1 2-2-2 3-3-3
1 & 6 8 1/4
Wye π
3PN221B
Single
120 60 0-132 2.50 0.33 — — CW LINE CORD & RECEPTACLE 3 3
Phase
Single
50/60 0-240 0.8 0.19 1.0 0.24
CW 1-2 — 1-3
252
Phase
240
CCW 1-2 — 2-3
1 2 1/2
60 0-264 0.8 0.21 — — CW 1-4 — 1-3
Single
CW 2-2 1-1 3-3
Phase
480
50/60 0-480 0.8 0.38 1.0 0.48
CCW 1-1 2-2 3-3
1 & 4 5 1/2
Series
60 0-528 0.8 0.42 — — CW 4-4 1-1 3-3
252-2
Three
50/60 0-240 0.8 0.33 1.0 0.42
CW 2-1-2 1-1 3-1-3
Phase
240++
CCW 1-2-1 2-2 3-2-3
Open
60 0-264 0.8 0.37 — — CW 4-1-4 1-1 3-1-3
1 & 5 5 1/2
Delta π
Three
50/60 0-480 0.8 0.67 1.0 0.83
CW 2-2-2 1-1-1 3-3-3
252-3
Phase
480++
CCW 1-1-1 2-2-2 3-3-3
1 & 6 8 1/4
Wye π
60 0-528 0.8 0.73 — — CW 4-4-4 1-1-1 3-3-3
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