Level Switches - Electrical, Lighting and Power

Marine level switches are point-level sensing devices used to detect liquid presence or absence in shipboard tanks and systems. They support alarms, pump control, overflow protection and low-level protection in bilge, ballast, fuel, lube-oil, freshwater and wastewater systems.

ProShipWorks provides end-to-end support to source and supply Level Switches for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.

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Product Information

Product Name Level Switches
Product Category Electrical, Lighting and Power
Product Reference 569
Brands / Manufacturers WIKA, KOBOLD, Endress+Hauser, Gems Sensors, Mobrey
Unit of Measure Piece

Key Features

Key Feature
1.   Float, magnetic, conductive, capacitive or vibrating-fork sensing
2.   Available with normally open or normally closed contacts
3.   Suitable for bilge, ballast, fuel, oil, freshwater and sewage systems
4.   Various process connections and insertion lengths
5.   Options for hazardous-area, marine-environment and high-temperature service

Applications of Level Switches

Application
1.  Bilge and leakage alarm systems
2.  Fuel, ballast, freshwater and sewage tanks
3.  Pump start-stop and dry-running protection

Models & Manufacturers

Model Manufacturer
RLS-7000 WIKA
NWS KOBOLD
Liquiphant FTL51B Endress+Hauser
LS-7 Gems Sensors
Series 003 Mobrey

Technical Specifications

Model Specification Value Unit
RLS-7000 Sensing principle Magnetic float —
NWS Sensing principle Float-operated switching —
Liquiphant FTL51B Sensing principle Vibrating fork —
LS-7 Sensing principle Float-operated level switch —
Series 003 Sensing principle Magnetic level switching —

Standards, Certifications & Class Approval

Review the available standards and approval information relevant to the product. Actual certification, material traceability, inspection and classification requirements depend on the product type, intended application and purchasing specification.

Applicable Standards & Certification Applicable requirements may include IEC 60092-504 for shipboard control and instrumentation, IEC 60079 for hazardous-area installations, and IEC 60533 for electromagnetic compatibility. Exact certification depends on construction, installation zone and manufacturer option.
Class Approval Marine type approval is model- and configuration-specific. Possible approving societies include DNV, ABS, Lloyd's Register, Bureau Veritas and ClassNK. Verify the current certificate for the exact switch, enclosure, electrical rating and service location.

Installation, Maintenance & Safety Information

Installation Notes Confirm the switching function, liquid compatibility, pressure and temperature rating, mounting orientation, process connection and electrical load before installation. Install according to the maker's wiring diagram and vessel classification requirements.
Maintenance Tips Inspect periodically for fouling, sludge, corrosion, cable damage and loose connections. Test alarm and pump-control operation during planned maintenance, and clean float or sensing surfaces without damaging seals or coatings.
Safety Notes Isolate electrical power and process pressure before removal. Use certified equipment in hazardous areas, maintain required ingress protection, and do not exceed contact, voltage, temperature or pressure ratings.

Request a Quote for Level Switches

Contact ProShipWorks for marine or industrial product sourcing, quotations and delivery.

  • Vessel name and IMO number
  • ETA / vessel schedule
  • Berth or vessel location
  • Required quantity
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