D178721
Coils and Transformers
TRANSFORMER,POWER
D178721
American Telephone And Telegraph Co
TRANSFORMER,POWER
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Technical Characteristics
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Mounting Facility Quantity
4 single group
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Overall Width
3.500 inches nominal
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Center To Center Distance Between Mounting Facilities Parallel To Length
2.062 inches nominal single mounting facility single center group
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Center To Center Distance Between Mounting Facilities Parallel To Width
7.500 inches nominal single mounting facility single center group
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Mounting Method
threaded stud single group
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Winding Operating Voltage
5.00 ac volts nominal single component all secondary
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Winding Operating Current
6.0 amperes ac maximum single component 3rd secondary
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Terminal Type And Quantity
6 standoff, threaded stud and 2 standoff, solder lug
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Reliability Indicator
not established
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Body Length
8.812 inches nominal
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Thread Class (Non-Core)
err-070
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Input-Output Phase Relationship
single phase to single phase single component
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Winding Operating Voltage
115.00 ac volts nominal single component single primary
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Frequency Rating
60.0 hertz nominal single component
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Winding Shielding Method
internal shield grounded to inclosure single component
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Thread Series Designator
unc single group
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Overall Height
4.875 inches nominal
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Nominal Thread Size
0.250 inches single group
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Thread Quantity Per Inch
20 single group
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Winding Operating Current
3.0 amperes ac maximum single component 1st secondary
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Inclosure Type
hermetically sealed with oil
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Winding Function And Quantity
1 primary single component and 3 secondary single component
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Winding Operating Current
3.0 amperes ac maximum single component 2nd secondary