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Selection Charts H a r m o n i c M i t i g a t i n g T r a n s f o r m e r s
480 DELTA PRIMARY VOLTS — 208Y/120 SECONDARY VOLTS
kVA Catalog Number Height
(Inches)(Cm.)
Width
(Inches)(Cm.)
Depth
(Inches)(Cm.)
Weight
(Lbs.)(Kg.)
Mounting Type
(Wall)(Floor)
Weather
Shield
Wiring
Diagrams
Design
Figures
30.0 H3030K0014BCS 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 360 (163.2) F ① WSA1 81 E
45.0 H3045K0014BCS 25.50 (64.8) 24.39 (61.9) 19.37 (49.2) 500 (226.8) F ① WSA1 81 E
75.0 H3075K0014BCS 29.41 (74.7) 28.15 (71.5) 22.37 (56.8) 600 (272.2) F ① WSA2 81 E
112.5 H3112K0014BCS 35.47 (90.1) 31.90 (81.0) 26.88 (68.2) 938 (425.5) F WSA3 81 E
150.0 H3150K0014BCS 41.52 (105.5) 32.90 (83.5) 29.87 (75.9) 1213 (550.2) F WSA4 81 E
225.0 H3225K0014BCS 41.52 (105.5) 32.90 (83.5) 29.87 (75.9) 1872 (849.1) F WSA4 81 E
Notes: All models are DOE 2016 compliant
Wall mounting brackets are available for these sizes, refer to page 217.
Harmonic Mitigating Transformers Wiring Diagram
Diagram Showing Delta Primary and Zig-Zag Secondary
(Zero degree angular displacement)
Harmonic Mitigating Transformers – How do they work?
They consist of a Delta primary and a Zig-Zag secondary. The Zig-Zag secondary causes a phase shift in the triplen
harmonics, which results in a canceling effect. This prevents the triplen harmonic losses from being coupled back into the
primary and results in cooler operation and increased energy efficiency.
PRIMARY: 480 Volts Delta
SECONDARY: 208Y/120 Volts
TAPS: 2, 2 1/2 % ANFC, 2, 21/2% BNFC
12345 12345 12345
X3 X2 X1
H1 H2 H3
X0
81
Connect Connect
Primary Primary Inter- Secondary
Volts Lines To Connect Lines To
504 H1, H2, H3 1
492 H1, H2, H3 2
480 H1, H2, H3 3
468 H1, H2, H3 4
456 H1, H2, H3 5
Secondary Volts
208 X1, X2, X3
120 X1 to X0
1 phase
X2 to X0
X3 to X0
H2 X2
H1 H3 X1 X3
X0
All Wiring Diagrams begin on page 209.