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toll free 800.334.5214 ACME ELECTRIC |
hubbell-acmeelectric.comD r y - T y p e D i s t r i b u t i o n T r a n s f o r m e r s
Economical Auto Arrangements
A
B
C
600
OR
480
VOLTS
480
OR
380
VOLTS
DIAGRAM SHOWS NO TAP UNITS ONLY
X
X
X
X
H
H
H
H
TRANS. #1
OPEN DELTA-
AUTO
X
X
X
X
H
H
H
H
TRANS. #2
A
B
C
O
= Fuse Location NEC 450-4, 2014.
The diagram is for illustration purposes only. Please contact the
factory for construction details. Each Acme transformer is shipped
with detailed wiring diagrams. Refer to nameplate located inside the
front cover for specific voltage tap combinations.
600 PRIMARY VOLTS — 480 SECONDARY (open delta) VOLTS — 3Ø, 60 Hz
480 PRIMARY VOLTS — 380 SECONDARY (open delta) VOLTS — 3Ø, 50/60 Hz THREE PHASE
Primary 600V
Secondary 480V
kVA
①
Primary
Amps
Secondary
Amps
Primary 480V
Secondary 380V
kVA
①
Primary
Amps
Secondary
Amps
Quantity
②
Catalog
}
Number
~
Maximum Size Fuse
or Breaker
8.0
7.70
9.60
6.5
7.80
9.60
2
T253010S
15
12.0
11.55
14.40
9.5
11.55
14.40
2
T253011S
15
17.0
16.33
20.41
13.5
16.33
20.41
2
T253012S
25
25.0
24.06
30.01
20.0
24.06
30.01
2
T2530134S
30
43.0
41.38
51.70
34.0
41.38
51.70
2
T2530144S
60
64.0
61.59
77.00
51.0
61.59
77.00
2
T2535153S
80
86.0
82.76
103.44
68.0
82.76
103.44
2
T2535163S
110
129.0
124.13
155.20
103.0
124.13
155.20
2
T2535173S
175
216.0
207.85
259.80
172.0
207.85
259.80
2
T2535183S
300
324.0
311.78
389.70
259.0
311.78
389.70
2
TP530193S
400
433.0
416.67
520.83
346.0
416.67
520.83
2
TP530203S
600
650.0
625.00
781.00
519.0
625.00
781.00
2
TP530213S
800
865.0
833.00
1040.00
692.0
833.00
1051.00
2
TP530223S
1200
1445.0
1391.00
1738.00
1156.0
1391.00
1756.00
2
TP530233S
2000
2164.0
2083.00
2602.00
1731.0
2083.00
2629.00
2
TP530243S
3000
①
kVA capacity of three phase autotransformer bank, using two single phase, 60 Hz transformers connected open delta.
②
Catalog No. is for 1 transformer, 2 units are required.
}
Can be reverse connected with no change in kVA.
~
For transformer dimensions, refer to appropriate table in section 1, page 23.
For proper overcurrent protection, refer to Article 450-4 of N.E.C