Backer Hotwatt Strip Heaters Special Features

SF11: Lugs, rings, quick connect terminals attached to the end of lead wires. Specify terminal type and size when ordering. Special terminals are available.

• Available on: Mica insulated strip and ceramic insulated strip and finned strip
  heaters with lead wires.

SF11A: Ring terminals. specify size: #6, #8, #10.

SF11B: Straight quick connect terminals. Specify male or female and size: 3/16″ or 1/4″.

SF11C: Flag quick connect terminals. Specify male or female and size: 3/16″ or 1/4″.

SF11D: Spade terminals. Specify size: #6, #8, #10.

SF12: Male dead front armored plug.

• Available on: Mica insulated and ceramic insulated strip and finned strip
  heaters with leads.

Ground wire (SF-6) should be specified when using any 3 prong plug.

SF13: Enclosures for protection of electrical connections.

SF13A: General purpose box. NEMA No.1. 2 3/4″ x 1 1/2″ x 1 1/2″

• Available on: Mica insulated strip and ceramic insulated strip and finned strip heaters.

XS34: Epoxy potting and welded ends for moisture proof applications to 265°F in potting area.

• Available on: Ceramic insulated strip and finned strip heaters.

SF15: Flexible, stainless steel conduit.

• Available on: Mica insulated strip and ceramic insulated strip and finned strip heaters with leads.

SF23: Ceramic to metal seals for hermetic sealing and vacuum applications to 1000°F.

• Available on: Ceramic insulated strip and finned strip heaters with leads.

SF28: Three phase heaters.

• Available on: Mica insulated strip and ceramic insulated strip and finned strip heaters.

SF29: Multiple heat; when a single unit with multiple wattages is necessary. Some uses of these
units include: quick heat-up with a standby circuit for maintenance of low temperature; providing different wattages when there is a wide variation in thermal loads; and replacing more expensive rheostats or powerstats for wattage control.

• Available on: Mica insulated strip and ceramic insulated strip and finned strip heaters 1 1/2″
  wide and wider.

SF30: Special wattage distribution for units requiring different concentrations of wattage over their heated length. Specify distribution required in terms of percentage of wattage over a percentage of length.

• Available on: Mica insulated strip and ceramic insulated strip and finned strip heaters.

SF37: Stainless steel sheath.

• Standard on: Ceramic insulated strip and finned strip heaters.
• Available on: All mica insulated strip heaters.
• Available on: Finned strip heaters.

XS86: Ceramic terminal covers: with Type OF or SO terminals only

• Available on: Mica insulated strip and ceramic insulated strip and finned strip heaters 1 1/2″ wide and wider.

XS87: Mica heater. Mica insulation only. Unit has no metal outer sheath.