Class 20SR(MIL-S-15291/11/12/13)

20SR
  • Heavy duty, 2 - 4 position snap-action rotary switch up to 8 poles
  • Enables numerous power circuits to be operated simultaneously by a single handle.
  • Switching speed not dependent on operator action
  • Quick make and break action. Approximately 10 Millisecond contact transfer time
  • Excellent for DC as well as AC switching
  • All making and breaking of contacts takes place in the fully enclosed decks
  • Versatile - many special designs are available to fit every application
  • Available in Commercial versions (contact factory)
  • Insulating materials - NEMA Class A (105 degree C)

OPTIONS:

  • Available Escutcheon Plates (plain or engraved)
  • Silver-Plated Contacts
  • Combination of contact schematics
  • Spring-return (momentary contacts)
  • Make-Before-Break (shorting) contacts
  • Special panel thicknesses
  • 2-3 position limited rotation
Mechanical Specifications
Switch poles
1-8
Switch positions
2-4
Switch indexing
90°
Electrical Specifications
Continuous rating
200A-500V/200A-500V
Interrupting current
Voltage
125VAC Resistive (inductive)
Value
200A (.75pf)
Voltage
250VAC Resistive (inductive)
Value
200A (.75pf)
Voltage
500VAC Resistive (inductive)
Value
200A (.75pf)
Voltage
120VDC Resistive (inductive)
Value
200A (reduced Life-see MIL-S-15291)
Voltage
250VDC Resistive (inductive)
Value
200A (reduced Life-see MIL-S-15291)
Overload current
Dielectric strength
2000Vrms
Insulation resistance
200 megohms
Contact resistance
1.5 milliohms
Life (Electrical Operations)
6,000
Other
Switch mountings
4-hole