Page 95 - Transformers Full Line

D
ONGAN
E
LECTRIC
M
ANUFACTURING
C
O
. • 2987
F
RANKLIN
TROIT
,
MI 48207
800.428.2626 • 313.567.8500 •
F
AX
313.567.8828 •
w.dongan.com
93
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Former
Designation
Limiting
Temperature
Average
Temperature
Rise
Class A 105° C
55
° C
Class B 130° C
60
° C
Class F
155
° C
85
° C
Class H 180° C
115
° C
Class N 200° C
135
° C
Class R 220° C
150
° C
Class C 240° C
150
° C
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Ambient
Average
Winding
Temp.
Rise
Coil
Hot-Spot
Differential
UL/ANSI 1561 March 1987
-