EBARA Oil Level Switch LS-120 / LS-160 / LS-120W / LS-160W Selection (Replaces 290007)

Overview: One Part Number, Two Specs, Four Models

EBARA oil level switch family covers one OEM part number 290007 across two temperature specs and four model codes. LS-120 and LS-160 are the switches themselves (with magnetic reed triggering a low-level signal). LS-120W and LS-160W are the matching sight glass windows in the same temperature ratings. Selection rule: confirm the operating temperature first, then match the pump model - up to 120C go LS-120, 120-160C or high-power pumps go LS-160.

How to Choose Between the Two Specs

· LS-120 / LS-120W: transparent polycarbonate (PC) housing, operating 0-120C, storage -20 to 120C, fits standard EBARA dry pumps and liquid-ring service.

· LS-160 / LS-160W: transparent amber U-Polymer housing, operating 0-160C, storage -20 to 160C, designed for high-power or high-temp models like 65X40, 150X40, EST100.

· Both use SUS304 stainless metal parts and FKM (Viton) O-rings, IP65 protection, contacts Max. 2A / 250VAC, service life >= 50,000 cycles.

OEM Part Number Cross-Reference

All four model codes (LS-120, LS-160, LS-120W, LS-160W) are fully compatible replacements for EBARA OEM part 290007. Flange dimensions, electrical interface and signal logic match 290007 exactly, so they drop in without rewiring. Order by 290007 or any of the four LS codes to avoid mismatches.

Key Features

· Millisecond reed trigger: float drives the reed on/off; low-level alarm fires instantly to prevent dry running and bearing seizure.

· Wide-temp housing: PC and U-Polymer cover 0-120C and 0-160C duties.

· SUS304 + FKM corrosion resistance: stable sealing and electrical performance in vacuum, high-temp and aggressive media.

· No-rewire install: 2-pin / 3-pin standard terminal plugs into the existing harness.

Compatible Pumps at a Glance

Technical Specifications

FAQ

Q: How do I pick between LS-120W and LS-160W? A: Standard duty (<=120C) -> LS-120W (PC); high-temp (120-160C) or large pumps (65X40, 150X40, EST100) -> LS-160W (U-Polymer).

Q: Can it replace OEM 290007? A: Yes, all four LS codes are drop-in replacements for 290007; flange, electrical and signal logic match.

Q: How often to replace? A: Visual / seal check every 3 months; full replacement every 1-2 years or at 50,000 cycles.

Conclusion

LS-120 / 160 / 120W / 160W are the four-piece kit for EBARA oil-level monitoring under OEM 290007. Match the temperature and pump size, order by part number, and you get a no-rewire replacement. Factory-direct; contact us for sizing by pump and duty.