TriMod Besta

ABLE Instruments are an Official UK Representative for TriMod Besta Float Level Switches, a Swiss-engineered range of modular level control devices trusted by industry worldwide for over 50 years.

TriMod Besta, part of the Baumer Group, designs mechanical float switches that offer precise and reliable point level detection in a wide range of liquids. Their success lies in a unique modular approach, where each switch is built from three core components: a mounting flange, a float module adapted to the process medium, and a switch housing, either electric or pneumatic. This flexible architecture allows for easy customisation, reduced maintenance costs, and reliable integration into existing systems.

Besta float level switches are available in a wide variety of materials and configurations, including stainless steel, brass, and corrosion-resistant plastics. They support vertical or horizontal mounting, and are suitable for open or pressurised vessels. With models capable of operating at up to 100 bar and 400 °C, the range covers everything from standard industrial use to demanding marine and hazardous environments.

Have a particular application / project in mind? We’d welcome a call on +44 (0) 1189 169 420 or alternatively, email us now at info@247able.com

Common applications include chemical processing tanks, steam boilers, oil reservoirs, and clean water systems. Besta also supplies specialised models with international marine approvals such as DNV, Lloyd’s Register, and Bureau Veritas, as well as ATEX and IECEx-certified versions for use in explosive atmospheres.

TriMod Besta’s durability, switching precision and configurable design make it a preferred choice for OEMs and maintenance engineers alike. The range is supported by a full set of accessories, including float chambers, counterflanges, test actuators, and spare modules, all of which ABLE Instruments can supply and advise on.

With decades of application expertise, ABLE is here to help you select the ideal Besta switch for your process. Whether replacing an existing installation or designing a bespoke configuration, we provide technical advice, configuration support and access to documentation to help streamline procurement and ensure performance.

Showing 33–42 of 42 results

Besta P01051 Float Level Switch

Pneumatic horizontal side mounted Float Switch for high or low duty

  • Brand: TriMod Besta

  • P/N: P01051

  • Lead Time: Contact us for info

  • Tags: IP65 Protection, Pneumatic Horizontal, Safe Area, Standard Flange

Besta ZK801041 ATEX Float Level Switch

Electric horizontal side mounted Float Switch ATEX EEx ed certified for high or low duty

  • Brand: TriMod Besta

  • P/N: ZK801041

  • Lead Time: Contact us for info

  • Tags: IP67 Protection, Electric Horizontal, EEx ed Certified, Standard Flange

Besta ZK803041 ATEX Float Level Switch

Electric horizontal side mounted Float Switch ATEX EEx ed certified for high or low duty

  • Brand: TriMod Besta

  • P/N: ZK803041

  • Lead Time: Contact us for info

  • Tags: IP67 Protection, Electric Horizontal, EEx ed Certified, Standard Flange

Besta ZK803N04N ATEX Float Level Switch

Electric horizontal side mounted Float Switch ATEX EEx ed certified for high or low duty

  • Brand: TriMod Besta

  • P/N: ZK803N04N

  • Lead Time: Contact us for info

  • Tags: IP67 Protection, Electric Horizontal, EEx ed Certified, Standard Flange

Besta BLS 10 Level Sensor

For level detection and monitoring of multiple media

  • Brand: TriMod Besta

  • P/N: BLS 10

  • Lead Time: Contact us for info

  • Tags: -40 to +115 °C, 1.4404 / AISI 316L, General Purpose, M12 Connector

Besta BLS 11 Level Sensor

For level detection and monitoring of multiple media

  • Brand: TriMod Besta

  • P/N: BLS 11

  • Lead Time: Contact us for info

  • Tags: -40 to +115 °C, 1.4301 / AISI 304, General Purpose, M12 Connector

Besta BLS 20 Level Sensor

For level detection and monitoring of multiple media

  • Brand: TriMod Besta

  • P/N: BLS 20

  • Lead Time: Contact us for info

  • Tags: -40 to +85 °C, 1.4404 / AISI 316L, 5m Cable, General Purpose

Besta BLS 30 ATEX Level Sensor

For level detection and monitoring of multiple media

  • Brand: TriMod Besta

  • P/N: BLS 30

  • Lead Time: Contact us for info

  • Tags: -40 to +115 °C, 1.4404 / AISI 316L, M12 Connector, Zone 1 Certified