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hubbell-acmeelectric.comD r i v e I s o l a t i o n T r a n s f o r m e r s a n d A C L i n e R e a c t o r s
5
Windings, Terminals and Construction
kVA
Primary Winding
Secondary
Winding
Insulation System Termination
Enclosure
Construction
Core
7.5
CU wire
CU wire
180°C
CU wire
Epoxy encapsulated
Wound/distributed gap
11-20
AL foil
AL foil
180°C
CU wire
Epoxy encapsulated
Wound/distributed gap
27-220
AL foil
AL foil
220°C
CU bus
Ventilated
Wound/distributed gap
275-330
AL foil
AL foil
220°C
AL bus
Ventilated
Wound/distributed gap
440-770
AL foil
AL foil
220°C
AL bus
Ventilated
Butt stacked/Step lap
Thermal Switch Kit - PL-79900
Acme Thermal Switch Kits are designed for use with single and three phase drive isolation and distribution transformers. Thermal
switch kits are available for a one or three sensor system.
Thermal sensors can be field installed in the transformer winding ducts to detect abnormal temperatures. The thermal sensors are a
normally closed contact that opens at 200°C ± 10°C and has a current capacity of 5 amps @ 120V or 2.5 amps @ 240V. This contact
can activate any number of different types of alarms or mechanisms that could warn of a
potential failure.
kVA
Primary
575V Delta
Secondary
230Y/133
Catalog
Number
Primary
575V Delta
Secondary
460Y/266
Catalog
Number
Height
}
(Inches)(Cm.)
Width
}
(Inches)(Cm.)
Depth
}
(Inches)(Cm.)
Weight
(Lbs.)(Kg.)
Mounting Type
(Wall)(Floor)
Weather
Shield
Dimension Drawing
7.5
DTHA72S (40)
DTHB72S (43)
15.21 (38.6)
19.25 (48.9)
7.37 (18.7)
180 (81.6)
W
NA
F
11.0
DTHA0112S
DTHB0112S
18.86 (47.9)
20.30 (51.6)
9.03 (22.9)
265 (120.0)
F
①
NA
I
14.0
DTHA0142S
DTHB0142S
18.86 (47.9)
20.30 (51.6)
9.03 (22.9)
270 (123.0)
F
①
NA
I
20.0
DTHA0202S
DTHB0202S
20.77 (52.8)
20.94 (53.2)
10.18 (25.9)
435 (197.0)
F
①
NA
I
27.0
DTHA0274S
(41)
DTHB0274S
(44)
25.50 (64.8)
24.39 (61.9)
19.37 (49.2)
320 (145.0)
F
②
WSA1
E
34.0
DTHA0344S
DTHB0344S
25.50 (64.8)
24.39 (61.9)
19.37 (49.2)
340 (154.0)
F
②
WSA1
E
40.0
DTHA0404S
DTHB0404S
25.50 (64.8)
24.39 (61.9)
19.37 (49.2)
395 (179.0)
F
②
WSA1
E
51.0
DTHA0514S
DTHB0514S
29.90 (75.9)
28.15 (71.5)
22.37 (56.8)
400 (181.0)
F
②
WSA2
E
63.0
DTHA0634S
DTHB0634S
29.90 (75.9)
28.15 (71.5)
22.37 (56.8)
550 (250.0)
F
②
WSA2
E
75.0
DTHA0754S
DTHB754S
29.90 (75.9)
28.15 (71.5)
22.37 (56.8)
570 (259.0)
F
②
WSA2
E
93.0
DTHA0934S
DTHB0934S
35.90 (91.2)
31.90 (81.0)
26.88 (68.3)
685 (311.0)
F
WSA3
E
118.0 DTHA01184S
DTHB01184S
35.90 (91.2)
31.90 (81.0)
26.88 (68.3)
765 (347.0)
F
WSA3
E
145.0 DTHA01454S
DTHB01454S
41.52 (105.5)
32.90 (83.6)
29.88 (75.9)
990 (449.0)
F
WSA4
E
175.0
DTHB01754S
41.52 (105.5)
32.90 (83.6)
29.88 (75.9)
1100 (499.0)
F
WSA4
E
220.0
DTHB02204S
41.52 (105.5)
32.90 (83.6)
29.88 (75.9)
1120 (508.0)
F
WSA4
E
275.0
DTHB002754S
45.60 (115.8)
39.50 (100.3)
35.50 (90.2)
2090 (948.0)
F
WSA5
E
330.0
DTHB03304S
45.60 (115.8)
39.50 (100.3)
35.50 (90.2)
2090 (948.0)
F
WSA5
G
440.0
DTHB04404S
57.84 (157.5)
45.50 (115.6)
41.49 (105.4)
2580 (1172.7)
F
WSA7
G
550.0
DTHB05504S
57.84 (157.5)
45.50 (115.6)
41.49 (105.4)
2640 (1200.0)
F
WSA7
G
660.0
DTHB006604S
62.84 (159.6)
54.00 (137.2)
41.49 (105.4)
3700 (1678.3)
F
WSA6
G
①
Optional wall mounting kits-part # PL79911,
refer to page 217.
②
Optional wall mounting kits-part # PL79912,
refer to page 217.
}
Dimensions may change and are not to be used for detailed construction purposes. Please contact the factory for certified dimensional drawings.
The number in ( )’s following the catalog number is the electrical wiring diagram number beginning on page 209.