Rotary Switch

Part Number 1SR4A1

Quality inspected with certificate of conformity. For questions and pricing call us at +1 210-468-8090

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Features

2a single mounting facility thread class, 3.928 inches nominal overall length, unc single mounting facility thread series designator.

2.188" overall width actuator knob 24 single mounting facility thread quantity per inch tap, circuit selector.

Includes quality control certificate of conformance.

Specifications

  • Overall Height:
    2.750 inches
  • Overall Width:
    2.188 inches
  • First Flat Length:
    0.750 inches single actuator
  • Flat Height:
    0.219 inches single actuator
  • Shaft Diameter:
    0.250 inches single actuator
  • Shaft Length:
    1.188 inches single actuator
  • Individual Section Quantity:
    4
  • Switch Contact Basic Design:
    Nonpile-up nonsymmetrical
  • Mounting Facility Circle Radius:
    1.156 inches single mounting facility
  • Mounting Method:
    Bracket single mounting facility and threaded hole single mounting facility
  • Features Provided:
    Actuator knob
  • Thready Qty Per Inch (tpi):
    24 single mounting facility
  • Thread Size:
    0.190 inches single mounting facility
  • Contact Voltage Rating In Volts:
    120.0 lowest dc voltage rating at sea level
  • Contact Voltage Rating In Volts:
    125.0 lowest ac voltage rating at sea level
  • Contact Voltage Rating In Volts:
    350.0 highest dc voltage rating at sea level
  • Contact Voltage Rating In Volts:
    500.0 highest ac voltage rating at sea level
  • Mounting Facility Pattern:
    Four position circular single mounting facility
  • Switch Actuator Indexing Position Quantity:
    4 single actuator
  • Shaft Type:
    Round, flatted, threaded hole single actuator
  • Terminal Type:
    Threaded stud
  • Switch Actuator Positioning Increment:
    90.0 degrees single actuator
  • Contact Load Current Rating:
    10.0 amperes resistive load highest dc voltage rating at sea level and 10.0 amperes inductive load highest dc voltage rating at sea level
  • Contact Load Current Rating:
    10.0 amperes resistive load highest ac voltage rating at sea level and 10.0 amperes inductive load highest ac voltage rating at sea level
  • Contact Load Current Rating:
    10.0 amperes resistive load lowest dc voltage rating at sea level and 10.0 amperes inductive load lowest dc voltage rating at sea level
  • Contact Load Current Rating:
    10.0 amperes resistive load lowest ac voltage rating at sea level and 10.0 amperes inductive load lowest ac voltage rating at sea level
  • Style Designator:
    Tap, circuit selector
  • Test Data Document:
    81349-mil-s-15291 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
  • Specification Data:
    81349-mil-s-15291/1 government specification
  • Federal Supply Class (fsc):
    Switches
  • National Stock Number (nsn):
    5930-01-173-7330

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