UNS-MS (Formerly Series BLS-810)

  • Temperature & level sensing in a single unit
  • Compact size for easy installation
  • Ideal for small tanks & vessels
  • Broad media compatibility
  • Ideal to use in oils and water
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Barksdale's BLS-810 family of level switches offers both level and temperature control in one compact unit. With brass stems and Buna-N floats, these dual function switches are compatible with a broad range of media, including most hydraulic oils. All units include 100VA as the standard limit switch, offering robust switching performance. We offer a wide array of temperature ranges, to meet the needs of any application. For applications requiring both level monitoring and temperature switching, this level switch is an ideal choice.


General Specifications*

Stem and Mounting Thread: MS = Brass construction 1/4” NPT
Float: BN = Buna N, Ø = 30 mm
Max. Operating Pressure (float): 220 psig (15 bar)
Max. Operating Temperature: -4° to +212°F (-20° to + 100°C)- oil
-4° to +176°F (-20° to + 80°C)- water
Min. Fluid Specific Gravity: 0.60g/cm^3 (0.021 lb/in^3)
Mounting Position: Vertical, through top or bottom
Max. 30° inclination
Protection Class: IP54
Electrical Connection: KI = PVC cable, max. 3 x 0.34 mm²
1 m length
Contact Mode: 1 – SPST-switch (NO)
2 – SPST-switch (NC)
Max. Contact Rating
Reed switch, SPST:

Temperature switch, SPST:

NO / NC: 250 V AC / DC
3 A, 100 VA / W
12 to 24 VDC, max 3 amps
Weight: Approx. 150 grams (5.3 oz)
Approvals: cURus
* See product confi gurator for additional options.


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