The Barksdale UNS-MS1/8-BN25 is a compact, rugged single-point float level switch engineered for general liquid level detection in tanks, containers, hydraulic units, and oil storage systems. It features a brass stem and Buna-N (NBR) float material, with a G 1/8″ mounting thread and IP54 protection. The switch is available with a single contact (SPST/SPDT) and a reversible output logic (NO ↔ NC by rotating the float). It supports electrical ratings up to 230 VAC / DC at 2 A (40 VA) in certain variants.
The UNS-MS1/8-BN25 is versatile for installation from the top or bottom of vessels and is widely used in oil, hydraulic, and industrial fluid systems for reliable level monitoring.
Features
UNS-MS1/8-BN25 Brass Level Switch Features:
- G1/8" - Mounting thread
- 1 switch contact
- Mounting through top or through bottom
Specifications
UNS-MS1/8-BN25 Brass Level Switch Specifications:
| Specification | Details |
|---|---|
| Stem and Mounting Thread | MS 1/8 = Brass G1/8 MS 1/8 NPT = Brass 1/8" NPT |
| Float | BN 25 = Buna N, Ø 25 mm |
| Max. Operating Pressure | 15 bar (Float / +20 °C) |
| Max. Operating Temperature | -20 °C to +100 °C (Oil) -20 °C to +80 °C (Water) |
| Min. Fluid Specific Gravity | 0.57 g/cm³ |
| Mounting Position | Vertical, ±30°, through top or bottom |
| Protection Class | IP54 |
| Electrical Connection | PVC cable, max. 3 x 0.34 mm² Lengths: 1 m / 3 m / 5 m |
| Contact Mode | 1 - SPST (NO) 2 - SPST (NC) 3 - SPDT |
| Max. Contact Rating | NO / NC: 230 V AC/DC, 2 A, 40 VA/W SPDT: 150 V AC / 100 V DC, 0.2 A, 3 VA/W |
| Weight | Approx. 40 g |
Applications
UNS-MS1/8-BN25 Brass Level Switch Applications:
General level measurement for
- Tanks
- Containers
- Storage tanks for oil
- Hydraulic power packs
Q & A
UNS-MS1/8-BN25 Brass Level Switch Q & A
Yes. The design allows for top or bottom installation, providing flexibility for different tank configurations.
Downloads
Download Barksdale UNS-MS1/8-BN25 Brass Level Switch Datasheet
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