The SPIDER 250 electronic float switch is used to control the level of a liquid in hydraulic systems handling clear, turbid, industrial and chemical water. Rods attached to the body allow the level regulator to work in confined spaces and in difficult conditions with turbulent water. Using the supplied magnetic key, the customer is able to adjust the start-up and shutdown delay times to suit their own requirements. In addition, thanks to the Schuko intermediate plug (accessory that can be purchased separately) it is possible to directly connect a pump without the need for a traditional electrical panel. .
Spider 250 is connected to 3 adjustable wands: one for the ground (Com), one for the minimum level (Min) and one to control the maximum level (Max). When water reaches the well and the level rises, the SPIDER 250 starts the pump when the Max level wand detects water. When the level decreases, the SPIDER 250 stops the pump when the minimum level wand no longer detects liquid.
The CRAB electronic level switch is available with a 5 or 10 metre electric cable and is suitable for operation in clear water, rainwater, industrial water and water in which even corrosive chemicals are dissolved.

Key Features

Cable 5 - 10 mt. H07 RN-F 4G1 Ø 9,7 mm.
Casing Polypropylene
Power Supply 230Vac 50/60Hz or 12/24 Vdc - Vac 10A
Depth max.10m (32,8)
Certification TUV Rheinland - EAC - CE


In this section you will find all the variants of this model in the catalog: you can use the filters below to make your search more specific. When you have identified the variant you need, specify the quantity and use the button to add it to your Shopping List.

Related products

Blog Waterfitters

Hydraulic manifolds for pressurization units or heating systems | Water Fitters
Hydraulic manifolds: streamlining efficiency and performance.

Designed to separate and distribute fluids, in a variety of systems, they are widely used for pressurization units and heating systems.

Read more
Promotion filters and pumps for swimming pool mobile | Water Fitters
Spring... it's maintenance time for our pool components like filters or pumps

What do I need to do to properly maintain my swimming pool when the summer season is coming and we're ready for a dip?

Read more
Aqua Smart 45 sistema di pompaggio in superficie | Water Fitters
AQUA SMART45: the innovative energy-efficient and easy-to-implement pumping system.

This innovative surface pumping system saves more than 50% of electricity consumption and maintains constant pressure.

Read more
Efficient hydraulic systems for agriculture | Water Fitters
Hydraulic systems for more sustainable agriculture

More efficient plumbing systems for agriculture: the challenge to reduce energy consumption, waste and water losses.

Read more