UNS-VA/SB5 or B4 (formerly Series Bilge)

Barksdale_Level Switch_UNS-VA-SB5 Description
Barksdale's Bilge Switch offers an ideal portable level switching solution for your mobile application. Featuring all stainless steel construction with a polyethylene float, the Bilge Switch is rugged enough to handle demanding level control problems and hold up to a broad range of media. An integrated lifting wire provides an easy means of testing the switch (SB5 option). The built-in slosh shield protects the switch from chatter in mobile applications. Barksdale's Bilge Switches can be suspended from their cables, eliminating the need for tapped holes in the top of the vessel. For your mobile level switching applications, or other applications requiring a rugged switch in an economical design, a Barksdale Bilge Switch is the ideal choice.



  • Rugged 316 stainless steel
  • Built-in slosh shield
  • Ideal for high viscosity liquid
  • Reversible switch logic
  • Hermetically sealed reed switches


  • Sump tanks
  • Storage tanks
  • Solvent recovery systems
  • Lube oil console systems
  • Marine applications


Switch Rating SPST: 230 VAC/VDC @ 2.0 amps (Max.); 40 VA/W
Switch Configuration: Shipped as Normally Open (NO); Can beconverted to Normally Closed (NC) by rotating fl oat 180°.
Wetted Parts:
Stem, Bracket & Slosh Shield:
Strain Relief:
316 Stainless Steel
Polyethylene (PE)
Halogen-free polymer, UL-VO
Polyamide (PA)
Electrical Connection: Polymer jacketed cable, 2-conductor  18 AWG (yellow cable)
Mounting: Suspended from cable / vertical ±15°
Minimum Specific Gravity: 0.8 g/cm³
Operating Temperature: -4° to +158°F (-20° to +70°C)
Operating Pressure: 45 psig (3 bar) at 20°C
Cable Length: 6 ft., 30 ft., or 45 ft.
Weight: Approx. 180 gram

See Order Number Key on Barksdale Data Sheet for additional options.