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SEAFLO 25A Electromagnetic Bilge Pump Float Switch 12V 24V 32V

SEAFLO 25A Electromagnetic Bilge Pump Float Switch 12V 24V 32V

£49.99 GBP
£49.99 GBP
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SEAFLO 25A Electromagnetic Bilge Pump Float Switch 12V 24V 32V

Automatic water-level control for manual bilge pumps

An enclosed, mercury-free electromagnetic float switch for converting a separate non-automatic bilge pump to water-level-controlled operation. The protective strainer helps shield the moving mechanism from debris, while the quick-attach base supports cleaning and maintenance.

Key Features

  • ✔ Designed to control a separate manual bilge pump drawing no more than 25A.
  • ✔ Suitable for 12V, 24V and 32V DC bilge systems on motorboats, yachts, RIBs, fishing boats and workboats.
  • ✔ The switch rating must exceed the pump’s maximum/stall current, not merely its normal running current.
  • ✔ For high-load pumps or complex alarm/control circuits, use a correctly rated relay and follow the vessel wiring design.

Technical Specifications

Manufacturer model SFBS-25-05
Maximum switching current 25A
System voltage Suitable for 12V, 24V or 32V DC installations when wired correctly
Wire leads 1m / 39.27in
Wire gauge 14AWG
Switch type Enclosed electromagnetic float mechanism
Construction Mercury-free; debris-protective strainer housing and quick-attach base
Net weight Approximately 232g
Approximate packaged size 11 x 5.8 x 11cm

Installation and package contents

  • Mount on a level surface beside the pump at the required activation height, clear of hoses, wiring and moving equipment.
  • Keep the strainer accessible and test operation by raising the float before relying on the system.
  • Use tinned marine cable, waterproof connections and circuit protection sized for the pump circuit; follow the supplied wiring diagram.
  • Package contains one SEAFLO electromagnetic float switch with protective housing/base and attached leads. Bilge pump, relay, fuse, panel switch and connectors are not stated as included.

Questions & Answers

Does this item include a bilge pump?

No. It is a water-level switch for controlling a separate non-automatic pump.

Can it switch any 25A pump directly?

Only if the pump’s maximum current and the full circuit design remain within the 25A switch rating; otherwise use a suitable relay.

Does it contain mercury?

No. SEAFLO specifies a mercury-free electromagnetic design.

Will it work on 12V and 24V boats?

Yes, and it is also listed for 32V DC systems when wired and protected correctly.

Note: Please verify voltage, capacity and fitting sizes against your boat before ordering. For technical support, contact us via 4boats.co.uk.

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