Jefferson Electric Three-Phase Ventilated Wiring Diagrams
5.9
1-800-892-3755 www.jeffersonelectric.com Dry-Type Transformers
Three-Phase Ventilated
55
Version JE901 0612 Date Dec 06
Primary On Each Coil Primary Lines
Volts Jumper Taps To Connect To
218 1 H1, H2, H3
213 2 H1, H2, H3
208 3 H1, H2, H3
203 4 H1, H2, H3
198 5 H1, H2, H3
192 6 H1, H2, H3
187 7 H1, H2, H3
Sec. Secondary Lines
Volts Connect To
208 X1, X2, X3
120 Between X0 and
1 Phase X1 or X2 or X3
Wiring Diagram
Connections
T208B Wiring Diagram & Connections*
SECONDARY
PRIMARY
Primary On Each Coil Primary Lines
Volts Jumper Taps To Connect To
218 1 H1, H2, H3
208 2 H1, H2, H3
198 3 H1, H2, H3
187 4 H1, H2, H3
Sec. Secondary Lines
Volts Connect To
208 X1, X2, X3
120 Between X0 and
1 Phase X1 or X2 or X3
Wiring Diagram
Connections
T208F Wiring Diagram & Connections*
Primary On Each Coil Primary Lines
Volts Jumper Taps To Connect To
218 1 X1, X2, X3
213 2 X1, X2, X3
208 3 X1, X2, X3
203 4 X1, X2, X3
198 5 X1, X2, X3
192 6 X1, X2, X3
187 7 X1, X2, X3
Sec. Secondary Lines
Volts Connect To
480 H1, H2, H3
277 Between H0 and
1 Phase H1 or H2 or H3
Wiring Diagram
Connections
T208D Wiring Diagram & Connections*
SECONDARY
PRIMARY
Primary On Each Coil Primary Lines
Volts Jumper Taps To Connect To
218 1 X1, X2, X3
208 2 X1, X2, X3
198 3 X1, X2, X3
187 4 X1, X2, X3
Sec. Secondary Lines
Volts Connect To
480 H1, H2, H3
277 Between H0 and
1 Phase H1 or H2 or H3
Wiring Diagram
Connections
T208G Wiring Diagram & Connections*
SECONDARY
PRIMARY
SECONDARY
PRIMARY
Primary: 208 Volts Delta
Secondary: 208Y/120 Volts
Primary: 208 Volts Delta
Secondary: 208Y/120 Volts
Primary: 208 Volts Delta
Secondary: 480Y/277 Volts
Primary: 208 Volts Delta
Secondary: 480Y/277 Volts
NOTE: Electrostatic shields are optionally available and not shown in all wiring diagrams. * Insulate unused taps individually.
5.10
Dry-Type Transformers www.jeffersonelectric.com 1-800-892-3755
Three-Phase Ventilated
55
Version JE901 0612 Date Dec 06
Dry-Type Transformers www.jeffersonelectric.com 1-800-892-3755
55
Primary On Each Coil Primary Lines
Volts Jumper Taps To Connect To
252 1 H1, H2, H3
246 2 H1, H2, H3
240 3 H1, H2, H3
234 4 H1, H2, H3
228 5 H1, H2, H3
222 6 H1, H2, H3
216 7 H1, H2, H3
Sec. Secondary Lines
Volts Connect To
208 X1, X2, X3
120 Between X0 and
1 Phase X1 or X2 or X3
Wiring Diagram
Connections
T240B Wiring Diagram & Connections*
Primary On Each Coil Primary Lines
Volts Jumper Taps To Connect To
252 1 H1, H2, H3
240 2 H1, H2, H3
228 3 H1, H2, H3
216 4 H1, H2, H3
Sec. Secondary Lines
Volts Connect To
208 X1, X2, X3
120 Between X0 and
1 Phase X1 or X2, or X3
Wiring Diagram
Connections
T240F Wiring Diagram & Connections*
PRIMARY
SECONDARY
PRIMARY
SECONDARY
Primary: 240 Volts Delta
Secondary: 208Y/120 Volts
Primary On Each Coil Primary Lines
Volts Jumper Taps To Connect To
252 1 X1, X2, X3
246 2 X1, X2, X3
240 3 X1, X2, X3
234 4 X1, X2, X3
228 5 X1, X2, X3
222 6 X1, X2, X3
216 7 X1, X2, X3
Sec. Secondary Lines
Volts Connect To
480 H1, H2, H3
277 Between H0 and
1 Phase H1 or H2 or H3
Wiring Diagram
Connections
T240D Wiring Diagram & Connections*
PRIMARY
SECONDARY
Primary: 240 Volts Delta
Secondary: 480Y/277 Volts
Primary: 240 Volts Delta
Secondary: 208Y/120 Volts
Primary On Each Coil Primary Lines
Volts Jumper Between Taps Connect To
252 1 and 2 X1, X2, X3
240 1 and 4 X1, X2, X3
228 2 and 3 X1, X2, X3
216 3 and 4 X1, X2, X3
Sec. Secondary Lines
Volts Connect To
480 H1, H2, H3
277 Between H0 and
1 Phase H1 or H2, or H3
Wiring Diagram
Connections
T240E Wiring Diagram & Connections*
PRIMARY
SECONDARY
Primary: 240 Volts Delta
Secondary: 480Y/277 Volts
NOTE: Electrostatic shields are optionally available and not shown in all wiring diagrams. * Insulate unused taps individually.
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