Rule-A-Matic® Float Switch


This non-mercury automatic float switch has
set the standard for the industry for years.
Its new improved blocked wiring for greater
durability and water resistance has again
raised the standard.

Package Includes

1 x Rule-A-Matic® Float Switch


Base footprint : 66 x 45mm
127mm length x 45mm width

Model: 35A

Max: 14amp for 12 Volts

Max: 7amp for 24 Volts

Max: 5amp for 32 Volts

Wire Length: 28"

Wire Gauge Size: 16

NOTE: This product should be fused with the recommended fuse size for the Rule pump to which it is connected


Turns pump on when water level reaches 51mm

Turns pump off when water level reaches 19mm

Removeable snap-on base for easy fitting, servicing and cleaning
It is suitable for pumps of any voltage up to a maximimum pump draw of 14 amps
It suits all Rule non-automatic pumps
(except the 3700 & 4000GPH 12v pumps)
2 year limited warranty
Full wiring and installation instructions are supplied with the unit

Rule Automatic Float Switches are the world's largest selling float switches.
They are designed to automatically activate your Non-Automatic bilge pump when water is present.
They are simple, non-mercury, envoironmentally responsible switches. All are ignition protected,
ultrasonically welded and sealed, to give reliable, trouble-free service. The wiring is blocked to keep out
moisture and exits the top of the switch to keep them high and dry.

No battery drain and no exposed metal to corrode.

Wiring Instructions

Technical Data

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Model # RWB22
Barcode # 42237095435
Brand RULE
Shipping Weight 0.1600kg
Shipping Width 0.120m
Shipping Height 0.080m
Shipping Length 0.220m
Shipping Cubic 0.002112000m3

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