Vanguard - Three Phase - General Purpose
Three Phase: 3 kVA - 9 kVA Epoxy Encapsulated
Series 76 ISO‑Shield
Features
• Electrostatic shield between primary and
secondary windings provides cleaner output
voltage and helps to reduce spikes and transients.
• Epoxy-silica encapsulated core
• UL Class 220°C insulation system
• NEMA Type 3R, wall mount enclosure
• Multiple knockouts provide convenient conduit
entry and exit locations through the front and
bottom access wiring compartment covers.
• Ground studs provided
• Nonstandard designs are available by consulting
the factory or your Dongan
®
representative.
3 - 9 kVA
Three Phase: 15 kVA - 150 kVA Ventilated
Series 63 & 73 ISO‑Shield
Features
• Electrostatic shield between primary and
secondary windings provides cleaner output
voltage and helps to reduce spikes and transients.
• Aluminum windings connect to bus bar style
terminations equipped with NEMA standard holes
for compression style or ring terminals.
• UL Class 220°C insulation system
• NEMA Type 3R, ventilated, cabinet style, oor
mount enclosure
• Vibration dampening pads provide quiet
operation.
• Wall Mounting brackets are available in sizes up
to 75 kVA.
• Ground studs provided
• Nonstandard designs are available by consulting
the factory or your Dongan® representative.
15 - 225 kVA
22 Dongan
®
Electric Manufacturing Company
Vanguard - Three Phase - General Purpose
Primary Volts 480 Delta,
Secondary Volts 240 Delta, 60 Hz
May be used on a 480Y / 277 Volt Supply
General Information Winding Specifications Dimensions
73 Series DOE 2016 Compliant
kVA*
Cap.
3.0
6.0
9.0
15.0
30.0
45.0
75.0
112.5
150.0
*Transformers 15 kVA through 150 kVA are equipped with a 120 volt lighting tap. Lighting tap capacity is limited to
5% of nameplate rating distributed equally on either side of XO.
Catalog
Number
76-0203SH
76-0206SH
76-0209SH
73-6215SH*
73-6230SH*
73-6245SH*
73-6275SH*
73-62112SH*
73-62150SH*
Wgt.
Lbs Taps
140 0 3.6 7.2 2 14.00 16.00 7.75 1
212 0 7.2 14.4 2 18.00 20.00 9.50 1
265 0 10.8 21.6 2 18.00 20.00 9.50 1
230 6 18 36 6 23.50 18.88 18.50 2
326 6 36 72 6 29.00 24.25 20.88 2
460 6 54 108 6 29.00 24.25 20.88 2
722 6 90 180 6 32.00 27.25 26.25 2
1001 6 135 270 6 41.00 34.25 26.75 2
1255 6 180 361 6 41.00 34.25 26.75 2
Maximum Amps
DOE 2016 Compliant
Conn
Dia.
HeightAWidthBDepthCOutline
Pg. 28
Dwg.Pri. Sec.
Primary Volts 480 Delta,
Secondary Volts 208Y / 120, 60 Hz
May be used on a 480Y / 277 Volt Supply
General Information Winding Specifications Dimensions
kVA
Cap.
3.0
6.0
9.0
15.0
30.0
45.0
75.0
112.5
150.0
Catalog
Number
76-0303SH
76-0306SH
76-0309SH
73-6315SH
73-6330SH
73-6345SH
73-6375SH
73-63112SH
73-63150SH
Wgt.
Lbs Taps
140 0 3.6 8.3 5 14.00 16.00 7.75 1
212 0 7.2 16.6 5 18.00 20.00 9.50 1
265 0 10.8 25 5 18.00 20.00 9.50 1
230 6 18 41 3 23.50 18.88 18.50 2
326 6 36 83 3 29.00 24.25 20.88 2
460 6 54 125 3 29.00 24.25 20.88 2
722 6 90 208 3 32.00 27.25 26.25 2
1001 6 135 312 3 41.00 34.25 26.75 2
1255 6 180 416 3 41.00 34.25 26.75 2
Maximum Amps
DOE 2016 Compliant
Conn
Dia.
HeightAWidthBDepthCOutline
Pg. 28
Dwg.Pri. Sec.
Drawing 1
3 - 9 kVA
Wall Mount - Encapsulated - NEMA Type 3R
Drawing 2
15 - 150 kVA
Floor Mount - Ventilated - NEMA Type 3R
23
Vanguard - Three Phase - General Purpose
73 Series DOE 2016 Compliant
480 DELTA TO 400Y/230 60HZ
General Information Winding Specifications Dimensions
kVA
Cap.
3
6
9
15
30
45
75
112.5
150
225
Catalog
Number Hz.
76-3-2601SH
76-6-2601SH
76-9-2601SH
73-15-3494SH
73-30-3494SH
73-45-3494SH
73-75-3494SH
73-112-3494SH
73-150-3494SH
73-225-3494SH
Wgt.
Lbs Taps
60 140 0 2.9 4.3
60 212 0 5.8 8.7 7.00 4.00 3.63 2
60 265 0 8.7 13 12 4.87 5.25 3
60 230 6 36 21.7
60 326 6 72 43.3 29 24.25 20.88 2
60 460 6 108.2 65 29 24.25 20.88 2
60 722 6 180.4 108.2 32 27.25 26.25 2
60 1001 6 270.1 162.4 41 34.25 26.75 2
60 1255 6 360.8 216.5 41 34.25 26.75 2
60 1500 6 541.2 324.8 44 46 29.75 2
480 Volt Delta Primary, 480Y/277 Volt Secondary, 60Hz
Maximum Amps
DOE2016 Compliant
Conn
HeightAWidthBDepthCOutline
Dia.
6.37 3.75 3.37 1
See
Dia.
at
Right
23.5 18.88 18.5 2
See
Dia.
at
Right
Dwg.Pri. Sec.
73-XX-3494SH
Mtg.
kVA
15
30
45
75
112.5
150
Catalog
Number Taps
73-15-512SH
73-30-512SH
73-45-512SH
73-75-512SH
73-112-512SH
73-150-512SH
2 - 2 ½% FCAN
4 - 2 ½% FCBN
2 - 2 ½% FCAN
4 - 2 ½% FCBN
2 - 2 ½% FCAN
4 - 2 ½% FCBN
2 - 2 ½% FCAN
4 - 2 ½% FCBN
2 - 2 ½% FCAN
4 - 2 ½% FCBN
2 - 2 ½% FCAN
4 - 2 ½% FCBN
Type
W = Wall
F = Floor
W or F 23.5 18.8 18.5 260 BR‑890
W or F 29.0 24.3 20.9 420 BR‑890
W or F
W or F
Conn.
HeightAWidthBDepth
Dia.
Consult
Factory
F 41.0 34.3 26.8 960 N.A.
F 41.0 34.3 26.8 1240 N.A.
29.0 24.3 20.9 480 BR‑890
32.0 27.3 26.3 690 BR‑892
C
Est. Ship
Weight
(Lbs.)
Wall
Brackets
(Optional)
208 Volt Delta Primary, 480Y/277 Volt Secondary, 60 Hz
Mtg.
kVA
15
30
45
75
112.5
150
Catalog
Number Taps
73-15-565SH
73-30-565SH
73-45-565SH
73-75-565SH
73-112-565SH
73-150-565SH
2 - 2 ½% FCAN
4 - 2 ½% FCBN
2 - 2 ½% FCAN
4 - 2 ½% FCBN
2 - 2 ½% FCAN
4 - 2 ½% FCBN
2 - 2 ½% FCAN
4 - 2 ½% FCBN
2 - 2 ½% FCAN
4 - 2 ½% FCBN
2 - 2 ½% FCAN
4 - 2 ½% FCBN
Type
W = Wall
F = Floor
Conn.
HeightAWidthBDepth
Dia.
W or F 23.5 18.8 18.5 260 BR‑890
W or F 29.0 24.3 20.9 420 BR‑890
W or F
Consult
Factory
W or F
F 41.0 34.3 26.8 960 N.A.
F 41.0 34.3 26.8 1240 N.A.
29.0 24.3 20.9 480 BR‑890
32.0 27.3 26.3 690 BR‑892
Est. Ship
Weight
C
(Lbs.)
Wall
Brackets
(Optional)
Enclosure Drawing
Enclosure Drawing
24 Dongan
®
Electric Manufacturing Company