BT221F

Technical Characteristics

• Mounting Facility Quantity

  4 single group

• Center To Center Distance Between Mounting Facilities Parallel To Length

  0.812 inches nominal single mounting facility single center group

• Maximum Operating Temp

  61.0 deg fahrenheit

• Winding Operating Voltage

  7.00 ac pounds per hour dry single component single primary output and 29.00 ac pounds per hour with retaining chain single component single primary output

• Winding Operating Voltage

  115.00 ac pounds per hour wet single component single primary input

• Frequency Rating

  380.0 hertz minimum single component and 420.0 hertz maximum single component

• Mounting Method

  threaded hole single group

• Thread Class (Non-Core)

  2b single group

• Terminal Type And Quantity

  3 tab, solder lug

• Thread Direction (Non-Core)

  right-hand single group

• Thread Series Designator

  unf single group

• Unpackaged Unit Weight (Non-Core)

  1.500 pounds

• Inclosure Type

  fully inclosed

• Body Height

  2.380 inches maximum

• Body Width

  2.130 inches nominal

• Center To Center Distance Between Mounting Facilities Parallel To Width

  1.125 inches nominal single mounting facility single center group

• Scale Direction And Range (Non-Core)

  +7.0/+29.0 clockwise

• Reliability Indicator

  not established

• Winding Operating Current

  3.0 amperes nominal b and better drop siding single component single primary output

• Input-Output Phase Relationship

  single phase to single phase single component

• Winding Function And Quantity

  1 primary, variable autotransformer type single component

• Nominal Thread Size

  0.190 inches single group

• Body Length

  2.340 inches nominal