Consent Preferences

T/LL70 Vertical Float Switch

Vertical magnet and reed type float switch with up to 6 switch points and many custom build options.

The T/LL70 series is a comprehensive range of vertical float level switches designed around the proven and reliable magnet and reed switch principle.

Comprising many build variants, the T/LL70 is customized to each application by means of materials, level adjustment, connection, thread and reed contact specification etc. The data below gives some sense of the numerous combinations, but some interdependency exists with regard to the materials of construction.

Data Sheet

Liquid types

Liquids compatible with the construction materials; typically diesel, kerosene, petrol, water.



Max. Length: 2250 mm Brass, 3000 mm SS, 1500 mm uPVC
Min. Length: 200 mm (4 Floats, 10 VA Reeds)
Min. Switch to Switch Dim: 40 mm (10 VA Reeds)
Min. Switch to End Dim: 40 mm (10 VA Reeds)
Min. Switch to Datum Dim: 40 mm (10 VA Reeds)

Fittings (typical)

Brass: 1” BSPP / BSPT / NPT, 1.5” BSPP / NPT
Stainless: 1” BSPP / BSPT / NPT, 1.5” BSPP / NPT


Max Number of Floats: 6 x N/O or N/C, 4 x C/O

Reed Contact Specification

Reed Form N/O or N/C C/O
Voltage: ≤ 250 VAC/VDC ≤ 500 VAC/VDC
Current: ≤ 3 A* ≤ 3 A*
Power: ≤ 120 VA ≤ 100 VA
*1 A standard

Environmental Ratings

Ingress (Enclosure): IP67
Operating Temperature: -20 ºC to +70 ºC
Vibration: 7.44 Grms, BSEN 60068-2-64:1993, Random Vibration


Enclosure: Entry is M20 threaded for gland / conduit. Screw terminals for ≤ Ø2 mm / 3 mm2 conductors.
Flying Leads: Connectors / terminals as required.

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